From ba94f3088b792b16ea576a256a6030feddc87f24 Mon Sep 17 00:00:00 2001
From: Andrey Vagin <avagin@openvz.org>
Date: Wed, 1 Feb 2017 11:00:45 -0800
Subject: unix: add ioctl to open a unix socket file with O_PATH

This ioctl opens a file to which a socket is bound and
returns a file descriptor. The caller has to have CAP_NET_ADMIN
in the socket network namespace.

Currently it is impossible to get a path and a mount point
for a socket file. socket_diag reports address, device ID and inode
number for unix sockets. An address can contain a relative path or
a file may be moved somewhere. And these properties say nothing about
a mount namespace and a mount point of a socket file.

With the introduced ioctl, we can get a path by reading
/proc/self/fd/X and get mnt_id from /proc/self/fdinfo/X.

In CRIU we are going to use this ioctl to dump and restore unix socket.

Here is an example how it can be used:

$ strace -e socket,bind,ioctl ./test /tmp/test_sock
socket(AF_UNIX, SOCK_STREAM, 0)         = 3
bind(3, {sa_family=AF_UNIX, sun_path="test_sock"}, 11) = 0
ioctl(3, SIOCUNIXFILE, 0)           = 4
^Z

$ ss -a | grep test_sock
u_str  LISTEN     0      1      test_sock 17798                 * 0

$ ls -l /proc/760/fd/{3,4}
lrwx------ 1 root root 64 Feb  1 09:41 3 -> 'socket:[17798]'
l--------- 1 root root 64 Feb  1 09:41 4 -> /tmp/test_sock

$ cat /proc/760/fdinfo/4
pos:	0
flags:	012000000
mnt_id:	40

$ cat /proc/self/mountinfo | grep "^40\s"
40 19 0:37 / /tmp rw shared:23 - tmpfs tmpfs rw

Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/unix/af_unix.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'net/unix/af_unix.c')

diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index cef79873b09d..e2d18b9f910f 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -117,6 +117,7 @@
 #include <net/checksum.h>
 #include <linux/security.h>
 #include <linux/freezer.h>
+#include <linux/file.h>
 
 struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE];
 EXPORT_SYMBOL_GPL(unix_socket_table);
@@ -2592,6 +2593,43 @@ long unix_outq_len(struct sock *sk)
 }
 EXPORT_SYMBOL_GPL(unix_outq_len);
 
+static int unix_open_file(struct sock *sk)
+{
+	struct path path;
+	struct file *f;
+	int fd;
+
+	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
+		return -EPERM;
+
+	unix_state_lock(sk);
+	path = unix_sk(sk)->path;
+	if (!path.dentry) {
+		unix_state_unlock(sk);
+		return -ENOENT;
+	}
+
+	path_get(&path);
+	unix_state_unlock(sk);
+
+	fd = get_unused_fd_flags(O_CLOEXEC);
+	if (fd < 0)
+		goto out;
+
+	f = dentry_open(&path, O_PATH, current_cred());
+	if (IS_ERR(f)) {
+		put_unused_fd(fd);
+		fd = PTR_ERR(f);
+		goto out;
+	}
+
+	fd_install(fd, f);
+out:
+	path_put(&path);
+
+	return fd;
+}
+
 static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 {
 	struct sock *sk = sock->sk;
@@ -2610,6 +2648,9 @@ static int unix_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		else
 			err = put_user(amount, (int __user *)arg);
 		break;
+	case SIOCUNIXFILE:
+		err = unix_open_file(sk);
+		break;
 	default:
 		err = -ENOIOCTLCMD;
 		break;
-- 
cgit v1.2.3


From 3f07c0144132e4f59d88055ac8ff3e691a5fa2b8 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 8 Feb 2017 18:51:30 +0100
Subject: sched/headers: Prepare for new header dependencies before moving code
 to <linux/sched/signal.h>

We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.

Create a trivial placeholder <linux/sched/signal.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.

Include the new header in the files that are going to need it.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/alpha/kernel/osf_sys.c                                    | 2 +-
 arch/alpha/kernel/signal.c                                     | 2 +-
 arch/alpha/kernel/traps.c                                      | 2 +-
 arch/alpha/mm/fault.c                                          | 2 +-
 arch/arc/kernel/traps.c                                        | 2 +-
 arch/arc/mm/fault.c                                            | 2 +-
 arch/arm/kernel/ptrace.c                                       | 2 +-
 arch/arm/kernel/traps.c                                        | 2 +-
 arch/arm/mm/alignment.c                                        | 2 +-
 arch/arm/mm/fault.c                                            | 2 +-
 arch/arm/mm/init.c                                             | 1 +
 arch/arm/mm/mmap.c                                             | 2 +-
 arch/arm/vfp/vfpmodule.c                                       | 2 +-
 arch/arm64/kernel/fpsimd.c                                     | 2 +-
 arch/arm64/kernel/ptrace.c                                     | 2 +-
 arch/arm64/kernel/traps.c                                      | 2 +-
 arch/arm64/mm/fault.c                                          | 2 +-
 arch/arm64/mm/mmap.c                                           | 2 +-
 arch/avr32/kernel/traps.c                                      | 2 +-
 arch/blackfin/kernel/trace.c                                   | 2 +-
 arch/blackfin/kernel/traps.c                                   | 1 +
 arch/cris/mm/fault.c                                           | 1 +
 arch/frv/kernel/traps.c                                        | 2 +-
 arch/h8300/kernel/ptrace_s.c                                   | 2 +-
 arch/hexagon/kernel/traps.c                                    | 2 +-
 arch/hexagon/mm/vm_fault.c                                     | 1 +
 arch/ia64/kernel/asm-offsets.c                                 | 2 +-
 arch/ia64/kernel/brl_emu.c                                     | 2 +-
 arch/ia64/kernel/mca.c                                         | 2 +-
 arch/ia64/kernel/traps.c                                       | 2 +-
 arch/ia64/kernel/unaligned.c                                   | 2 +-
 arch/ia64/mm/fault.c                                           | 2 +-
 arch/ia64/mm/init.c                                            | 1 +
 arch/mips/kernel/branch.c                                      | 2 +-
 arch/mips/kernel/signal_o32.c                                  | 1 +
 arch/mips/mm/mmap.c                                            | 2 +-
 arch/mips/sgi-ip22/ip22-berr.c                                 | 2 +-
 arch/mips/sgi-ip22/ip22-reset.c                                | 2 +-
 arch/mn10300/kernel/fpu.c                                      | 2 ++
 arch/openrisc/mm/fault.c                                       | 2 +-
 arch/parisc/kernel/sys_parisc.c                                | 1 +
 arch/parisc/kernel/unaligned.c                                 | 2 +-
 arch/parisc/math-emu/driver.c                                  | 3 ++-
 arch/powerpc/kvm/book3s_64_vio.c                               | 1 +
 arch/powerpc/mm/mmap.c                                         | 2 +-
 arch/powerpc/mm/mmu_context_iommu.c                            | 2 +-
 arch/powerpc/platforms/cell/spufs/fault.c                      | 2 +-
 arch/powerpc/xmon/xmon.c                                       | 2 +-
 arch/s390/kernel/nmi.c                                         | 3 +++
 arch/s390/mm/mmap.c                                            | 1 +
 arch/score/kernel/traps.c                                      | 2 +-
 arch/sh/kernel/cpu/sh2a/fpu.c                                  | 2 +-
 arch/sh/kernel/hw_breakpoint.c                                 | 1 +
 arch/sh/kernel/traps.c                                         | 2 ++
 arch/sh/math-emu/math.c                                        | 2 +-
 arch/sh/mm/asids-debugfs.c                                     | 2 ++
 arch/sh/mm/fault.c                                             | 1 +
 arch/sparc/kernel/sys_sparc_32.c                               | 2 +-
 arch/sparc/kernel/sys_sparc_64.c                               | 2 +-
 arch/sparc/kernel/unaligned_32.c                               | 2 +-
 arch/tile/mm/mmap.c                                            | 2 +-
 arch/um/drivers/line.c                                         | 3 ++-
 arch/um/kernel/reboot.c                                        | 2 +-
 arch/um/kernel/skas/mmu.c                                      | 3 ++-
 arch/um/kernel/tlb.c                                           | 3 ++-
 arch/um/kernel/trap.c                                          | 2 +-
 arch/unicore32/kernel/fpu-ucf64.c                              | 2 +-
 arch/unicore32/kernel/traps.c                                  | 1 +
 arch/unicore32/mm/fault.c                                      | 2 +-
 arch/x86/entry/vsyscall/vsyscall_64.c                          | 1 +
 arch/x86/kernel/cpu/intel_rdt_rdtgroup.c                       | 2 +-
 arch/x86/kvm/mmu.c                                             | 1 +
 arch/x86/mm/mmap.c                                             | 2 +-
 arch/xtensa/kernel/traps.c                                     | 2 +-
 drivers/android/binder.c                                       | 2 +-
 drivers/block/drbd/drbd_int.h                                  | 2 +-
 drivers/char/snsc_event.c                                      | 2 +-
 drivers/gpu/drm/amd/amdkfd/kfd_events.c                        | 2 +-
 drivers/gpu/drm/drm_lock.c                                     | 2 ++
 drivers/gpu/drm/ttm/ttm_lock.c                                 | 2 +-
 drivers/infiniband/core/umem.c                                 | 2 +-
 drivers/infiniband/hw/hfi1/user_pages.c                        | 2 +-
 drivers/infiniband/hw/qib/qib_user_pages.c                     | 1 +
 drivers/infiniband/hw/usnic/usnic_uiom.c                       | 2 +-
 drivers/isdn/i4l/isdn_tty.c                                    | 1 +
 drivers/isdn/mISDN/l1oip_core.c                                | 2 ++
 drivers/md/md.c                                                | 1 +
 drivers/md/raid1.c                                             | 3 +++
 drivers/md/raid5.c                                             | 2 ++
 drivers/misc/genwqe/card_dev.c                                 | 2 +-
 drivers/misc/mic/cosm/cosm_scif_server.c                       | 2 ++
 drivers/misc/mic/cosm_client/cosm_scif_client.c                | 2 ++
 drivers/misc/mic/scif/scif_rma.c                               | 1 +
 drivers/net/slip/slip.c                                        | 2 +-
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c        | 2 +-
 drivers/parisc/power.c                                         | 2 +-
 drivers/ps3/ps3-sys-manager.c                                  | 1 +
 drivers/s390/char/fs3270.c                                     | 1 +
 drivers/s390/char/keyboard.c                                   | 2 +-
 drivers/scsi/bnx2fc/bnx2fc.h                                   | 2 +-
 drivers/scsi/bnx2i/bnx2i.h                                     | 2 +-
 drivers/scsi/libiscsi.c                                        | 1 +
 drivers/staging/android/lowmemorykiller.c                      | 2 +-
 drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c          | 2 +-
 drivers/staging/rtl8188eu/include/osdep_service.h              | 2 +-
 drivers/staging/rtl8712/osdep_service.h                        | 2 +-
 drivers/staging/rtl8712/rtl8712_cmd.c                          | 1 +
 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c  | 1 +
 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h | 2 +-
 drivers/target/iscsi/iscsi_target.c                            | 1 +
 drivers/target/iscsi/iscsi_target_erl0.c                       | 2 ++
 drivers/target/iscsi/iscsi_target_login.c                      | 1 +
 drivers/target/iscsi/iscsi_target_nego.c                       | 1 +
 drivers/tty/pty.c                                              | 2 +-
 drivers/tty/sysrq.c                                            | 2 +-
 drivers/tty/tty_io.c                                           | 2 +-
 drivers/tty/vt/keyboard.c                                      | 2 +-
 drivers/tty/vt/vt.c                                            | 2 +-
 drivers/tty/vt/vt_ioctl.c                                      | 2 +-
 drivers/usb/atm/usbatm.c                                       | 2 +-
 drivers/usb/core/devio.c                                       | 1 +
 drivers/usb/gadget/function/f_mass_storage.c                   | 1 +
 drivers/vfio/vfio_iommu_spapr_tce.c                            | 1 +
 drivers/vfio/vfio_iommu_type1.c                                | 2 +-
 drivers/w1/w1_family.c                                         | 2 +-
 drivers/w1/w1_int.c                                            | 1 +
 fs/attr.c                                                      | 1 +
 fs/autofs4/waitq.c                                             | 1 +
 fs/cifs/connect.c                                              | 1 +
 fs/coda/upcall.c                                               | 2 +-
 fs/coredump.c                                                  | 2 +-
 fs/exec.c                                                      | 1 +
 fs/file.c                                                      | 2 +-
 fs/fs_struct.c                                                 | 2 +-
 fs/jffs2/background.c                                          | 2 +-
 fs/lockd/svc.c                                                 | 2 +-
 fs/ncpfs/inode.c                                               | 1 +
 fs/ncpfs/sock.c                                                | 1 +
 fs/nfs/callback.c                                              | 1 +
 fs/nfsd/nfssvc.c                                               | 2 +-
 fs/proc/fd.c                                                   | 2 +-
 fs/select.c                                                    | 4 ++--
 include/linux/oom.h                                            | 2 +-
 include/linux/ptrace.h                                         | 1 +
 include/linux/sched/signal.h                                   | 6 ++++++
 include/linux/signalfd.h                                       | 2 +-
 include/linux/taskstats_kern.h                                 | 2 +-
 ipc/mqueue.c                                                   | 1 +
 kernel/bpf/syscall.c                                           | 1 +
 kernel/cpu.c                                                   | 2 +-
 kernel/debug/gdbstub.c                                         | 1 +
 kernel/debug/kdb/kdb_bt.c                                      | 2 +-
 kernel/hung_task.c                                             | 2 ++
 kernel/rcu/update.c                                            | 2 +-
 kernel/sched/sched.h                                           | 1 +
 kernel/time/itimer.c                                           | 1 +
 kernel/time/posix-cpu-timers.c                                 | 2 +-
 kernel/time/tick-sched.c                                       | 2 +-
 kernel/tracepoint.c                                            | 2 +-
 kernel/tsacct.c                                                | 2 +-
 kernel/user_namespace.c                                        | 1 +
 lib/is_single_threaded.c                                       | 3 +--
 mm/filemap.c                                                   | 1 +
 mm/kmemleak.c                                                  | 2 +-
 mm/memory-failure.c                                            | 2 +-
 mm/vmacache.c                                                  | 2 +-
 net/9p/client.c                                                | 2 +-
 net/atm/common.c                                               | 2 +-
 net/ax25/af_ax25.c                                             | 2 +-
 net/caif/caif_socket.c                                         | 2 +-
 net/core/stream.c                                              | 1 +
 net/decnet/af_decnet.c                                         | 2 +-
 net/irda/af_irda.c                                             | 1 +
 net/netrom/af_netrom.c                                         | 2 +-
 net/rose/af_rose.c                                             | 2 +-
 net/sctp/socket.c                                              | 1 +
 net/sunrpc/svc.c                                               | 2 +-
 net/unix/af_unix.c                                             | 2 +-
 net/x25/af_x25.c                                               | 2 +-
 security/selinux/hooks.c                                       | 2 +-
 180 files changed, 204 insertions(+), 121 deletions(-)
 create mode 100644 include/linux/sched/signal.h

(limited to 'net/unix/af_unix.c')

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 9d27a7d333dc..568ca29f2ad9 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 17308f925306..b8221f112eee 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -6,7 +6,7 @@
  *  1997-11-02  Modified for POSIX.1b signals by Richard Henderson
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
 #include <linux/errno.h>
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index af2994206b4b..6448ab00043d 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -10,7 +10,7 @@
 
 #include <linux/jiffies.h>
 #include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/delay.h>
 #include <linux/extable.h>
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index 47948b4dd157..c25e8827e7cd 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -4,7 +4,7 @@
  *  Copyright (C) 1995  Linus Torvalds
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <asm/io.h>
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index c927aa84e652..ff83e78d0cfb 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -13,7 +13,7 @@
  * Rahul Trivedi: Codito Technologies 2004
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kdebug.h>
 #include <linux/uaccess.h>
 #include <linux/ptrace.h>
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index e94e5aa33985..162c97528872 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -9,7 +9,7 @@
 
 #include <linux/signal.h>
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index ae738a6319f6..46f7bab81c40 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -10,7 +10,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 #include <linux/elf.h>
 #include <linux/smp.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 9688ec0c6ef4..dc5f1a22b3c9 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -24,7 +24,7 @@
 #include <linux/bug.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/irq.h>
 
 #include <linux/atomic.h>
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 7d5f4c736a16..d7fe2de9cc9e 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -19,7 +19,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 
 #include <asm/cp15.h>
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index c2b5b9892fd1..520c7778d330 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -16,7 +16,7 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/highmem.h>
 #include <linux/perf_event.h>
 
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index bf4d3bc41a7a..2a9040dcf47e 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/mman.h>
+#include <linux/sched/signal.h>
 #include <linux/export.h>
 #include <linux/nodemask.h>
 #include <linux/initrd.h>
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 66353caa35b9..d448f9cd7715 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -5,7 +5,7 @@
 #include <linux/mm.h>
 #include <linux/mman.h>
 #include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/io.h>
 #include <linux/personality.h>
 #include <linux/random.h>
diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 569d5a650a4a..a71a48e71fff 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -15,7 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/notifier.h>
 #include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/uaccess.h>
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index b883f1f75216..06da8ea16bbe 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -21,7 +21,7 @@
 #include <linux/cpu_pm.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/hardirq.h>
 
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index a22161ccf447..64fc32ea3422 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -22,7 +22,7 @@
 #include <linux/audit.h>
 #include <linux/compat.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/ptrace.h>
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 7d47c2cdfd93..5b8779a849a2 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -29,7 +29,7 @@
 #include <linux/kexec.h>
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/syscalls.h>
 
 #include <asm/atomic.h>
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 81283851c9af..30dd60ab8a65 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -26,7 +26,7 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/highmem.h>
 #include <linux/perf_event.h>
 #include <linux/preempt.h>
diff --git a/arch/arm64/mm/mmap.c b/arch/arm64/mm/mmap.c
index 01c171723bb3..1e0a2650c88b 100644
--- a/arch/arm64/mm/mmap.c
+++ b/arch/arm64/mm/mmap.c
@@ -22,7 +22,7 @@
 #include <linux/mman.h>
 #include <linux/export.h>
 #include <linux/shm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/io.h>
 #include <linux/personality.h>
 #include <linux/random.h>
diff --git a/arch/avr32/kernel/traps.c b/arch/avr32/kernel/traps.c
index eb4a3fcfbaff..50b541325025 100644
--- a/arch/avr32/kernel/traps.c
+++ b/arch/avr32/kernel/traps.c
@@ -14,7 +14,7 @@
 #include <linux/extable.h>
 #include <linux/module.h>	/* print_modules */
 #include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 
 #include <asm/addrspace.h>
diff --git a/arch/blackfin/kernel/trace.c b/arch/blackfin/kernel/trace.c
index 719dd796c12c..01e546ad2f7a 100644
--- a/arch/blackfin/kernel/trace.c
+++ b/arch/blackfin/kernel/trace.c
@@ -11,7 +11,7 @@
 #include <linux/thread_info.h>
 #include <linux/mm.h>
 #include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 1ed85ddadc0d..32676d7721b1 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -9,6 +9,7 @@
 #include <linux/bug.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/sched/signal.h>
 #include <asm/traps.h>
 #include <asm/cplb.h>
 #include <asm/blackfin.h>
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index 94183d3639ef..1fca464f1b9e 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -8,6 +8,7 @@
 #include <linux/interrupt.h>
 #include <linux/extable.h>
 #include <linux/wait.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <arch/system.h>
 
diff --git a/arch/frv/kernel/traps.c b/arch/frv/kernel/traps.c
index 31221fb4348e..43c134d6081c 100644
--- a/arch/frv/kernel/traps.c
+++ b/arch/frv/kernel/traps.c
@@ -9,7 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/arch/h8300/kernel/ptrace_s.c b/arch/h8300/kernel/ptrace_s.c
index ef5a9c13e76d..c0af930052c0 100644
--- a/arch/h8300/kernel/ptrace_s.c
+++ b/arch/h8300/kernel/ptrace_s.c
@@ -10,7 +10,7 @@
  */
 
 #include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <asm/ptrace.h>
 
diff --git a/arch/hexagon/kernel/traps.c b/arch/hexagon/kernel/traps.c
index 110dab152f82..4496bcf605ef 100644
--- a/arch/hexagon/kernel/traps.c
+++ b/arch/hexagon/kernel/traps.c
@@ -19,7 +19,7 @@
  */
 
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
 #include <linux/kdebug.h>
diff --git a/arch/hexagon/mm/vm_fault.c b/arch/hexagon/mm/vm_fault.c
index 489875fd2be4..3eec33c5cfd7 100644
--- a/arch/hexagon/mm/vm_fault.c
+++ b/arch/hexagon/mm/vm_fault.c
@@ -28,6 +28,7 @@
 #include <asm/traps.h>
 #include <linux/uaccess.h>
 #include <linux/mm.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/extable.h>
 #include <linux/hardirq.h>
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 60ef83e6db71..8786c8b4f187 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -6,7 +6,7 @@
 
 #define ASM_OFFSETS_C 1
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/pid.h>
 #include <linux/clocksource.h>
 #include <linux/kbuild.h>
diff --git a/arch/ia64/kernel/brl_emu.c b/arch/ia64/kernel/brl_emu.c
index 8682df6263d6..987b11be0021 100644
--- a/arch/ia64/kernel/brl_emu.c
+++ b/arch/ia64/kernel/brl_emu.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <asm/processor.h>
 
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 9509cc73b9c6..5ac51069e453 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -72,7 +72,7 @@
 #include <linux/jiffies.h>
 #include <linux/types.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/bootmem.h>
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 8981ce98afb3..48ba46b025e1 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -9,7 +9,7 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/vt_kern.h>		/* For unblank_screen() */
 #include <linux/export.h>
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index 99348d7f2255..a13680ca1e61 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -15,7 +15,7 @@
  */
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/extable.h>
 #include <linux/ratelimit.h>
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 7f2feb21753c..15f09cfff335 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -4,7 +4,7 @@
  * Copyright (C) 1998-2002 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/extable.h>
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 06cdaef54b2e..8f3efa682ee8 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -12,6 +12,7 @@
 #include <linux/elf.h>
 #include <linux/memblock.h>
 #include <linux/mm.h>
+#include <linux/sched/signal.h>
 #include <linux/mmzone.h>
 #include <linux/module.h>
 #include <linux/personality.h>
diff --git a/arch/mips/kernel/branch.c b/arch/mips/kernel/branch.c
index ae037a304ee4..b11facd11c9d 100644
--- a/arch/mips/kernel/branch.c
+++ b/arch/mips/kernel/branch.c
@@ -7,7 +7,7 @@
  * Copyright (C) 2001 MIPS Technologies, Inc.
  */
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/export.h>
 #include <asm/branch.h>
diff --git a/arch/mips/kernel/signal_o32.c b/arch/mips/kernel/signal_o32.c
index 5e169fc5ca5c..2b3572fb5f1b 100644
--- a/arch/mips/kernel/signal_o32.c
+++ b/arch/mips/kernel/signal_o32.c
@@ -11,6 +11,7 @@
 #include <linux/compiler.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 
 #include <asm/abi.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index d6d92c02308d..374d71e61ef6 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -13,7 +13,7 @@
 #include <linux/export.h>
 #include <linux/personality.h>
 #include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 unsigned long shm_align_mask = PAGE_SIZE - 1;	/* Sane caches */
 EXPORT_SYMBOL(shm_align_mask);
diff --git a/arch/mips/sgi-ip22/ip22-berr.c b/arch/mips/sgi-ip22/ip22-berr.c
index 3f6ccd53c15d..ff8e1935c873 100644
--- a/arch/mips/sgi-ip22/ip22-berr.c
+++ b/arch/mips/sgi-ip22/ip22-berr.c
@@ -6,7 +6,7 @@
 
 #include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 #include <asm/addrspace.h>
 #include <asm/traps.h>
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index a36f6b87548a..03a39ac5ead9 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -10,7 +10,7 @@
 #include <linux/rtc/ds1286.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/notifier.h>
 #include <linux/pm.h>
 #include <linux/timer.h>
diff --git a/arch/mn10300/kernel/fpu.c b/arch/mn10300/kernel/fpu.c
index 2578b7ae7dd5..50ce7b447fed 100644
--- a/arch/mn10300/kernel/fpu.c
+++ b/arch/mn10300/kernel/fpu.c
@@ -9,6 +9,8 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 #include <linux/uaccess.h>
+#include <linux/sched/signal.h>
+
 #include <asm/fpu.h>
 #include <asm/elf.h>
 #include <asm/exceptions.h>
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index 53592a639744..e310ab499385 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -18,7 +18,7 @@
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/extable.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 #include <linux/uaccess.h>
 #include <asm/siginfo.h>
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index bf3294171230..ce07cd3f2507 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -30,6 +30,7 @@
 #include <linux/linkage.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
+#include <linux/sched/signal.h>
 #include <linux/shm.h>
 #include <linux/syscalls.h>
 #include <linux/utsname.h>
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c
index 0a21067ac0a3..a08ab481e556 100644
--- a/arch/parisc/kernel/unaligned.c
+++ b/arch/parisc/kernel/unaligned.c
@@ -23,7 +23,7 @@
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/ratelimit.h>
 #include <linux/uaccess.h>
diff --git a/arch/parisc/math-emu/driver.c b/arch/parisc/math-emu/driver.c
index 09ef4136c693..2fb59d2e2b29 100644
--- a/arch/parisc/math-emu/driver.c
+++ b/arch/parisc/math-emu/driver.c
@@ -27,7 +27,8 @@
  *  Copyright (C) 2001	      Hewlett-Packard <bame@debian.org>
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
 #include "float.h"
 #include "math-emu.h"
 
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index ab9d14c0e460..3e26cd4979f9 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -24,6 +24,7 @@
 #include <linux/highmem.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/hugetlb.h>
 #include <linux/list.h>
 #include <linux/anon_inodes.h>
diff --git a/arch/powerpc/mm/mmap.c b/arch/powerpc/mm/mmap.c
index 2f1e44362198..8013861aeaa7 100644
--- a/arch/powerpc/mm/mmap.c
+++ b/arch/powerpc/mm/mmap.c
@@ -25,7 +25,7 @@
 #include <linux/personality.h>
 #include <linux/mm.h>
 #include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/elf-randomize.h>
 #include <linux/security.h>
 #include <linux/mman.h>
diff --git a/arch/powerpc/mm/mmu_context_iommu.c b/arch/powerpc/mm/mmu_context_iommu.c
index 7de7124ac91b..497130c5c742 100644
--- a/arch/powerpc/mm/mmu_context_iommu.c
+++ b/arch/powerpc/mm/mmu_context_iommu.c
@@ -10,7 +10,7 @@
  *
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/rculist.h>
 #include <linux/vmalloc.h>
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c
index e29e4d5afa2d..870c0a82d560 100644
--- a/arch/powerpc/platforms/cell/spufs/fault.c
+++ b/arch/powerpc/platforms/cell/spufs/fault.c
@@ -19,7 +19,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 
 #include <asm/spu.h>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 26fa03fc9f3c..16321ad9e70c 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -13,7 +13,7 @@
 
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/smp.h>
 #include <linux/mm.h>
 #include <linux/reboot.h>
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 80c093e0c6f1..9bf8327154ee 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -13,6 +13,9 @@
 #include <linux/errno.h>
 #include <linux/hardirq.h>
 #include <linux/time.h>
+#include <linux/module.h>
+#include <linux/sched/signal.h>
+
 #include <linux/export.h>
 #include <asm/lowcore.h>
 #include <asm/smp.h>
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 7ae1282d5be9..5ea09403bb87 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -26,6 +26,7 @@
 #include <linux/personality.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
+#include <linux/sched/signal.h>
 #include <linux/random.h>
 #include <linux/compat.h>
 #include <linux/security.h>
diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c
index 569ac02f68df..fa624f30f783 100644
--- a/arch/score/kernel/traps.c
+++ b/arch/score/kernel/traps.c
@@ -24,7 +24,7 @@
  */
 
 #include <linux/extable.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 #include <asm/cacheflush.h>
 #include <asm/irq.h>
diff --git a/arch/sh/kernel/cpu/sh2a/fpu.c b/arch/sh/kernel/cpu/sh2a/fpu.c
index 98bbaa447c93..352f894bece1 100644
--- a/arch/sh/kernel/cpu/sh2a/fpu.c
+++ b/arch/sh/kernel/cpu/sh2a/fpu.c
@@ -9,7 +9,7 @@
  *
  * FIXME! These routines can be optimized in big endian case.
  */
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <asm/processor.h>
 #include <asm/io.h>
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index 2197fc584186..afe965712a69 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -11,6 +11,7 @@
  */
 #include <linux/init.h>
 #include <linux/perf_event.h>
+#include <linux/sched/signal.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/percpu.h>
 #include <linux/kallsyms.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 9513fa7840aa..3036dee854d1 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -8,6 +8,8 @@
 #include <linux/hardirq.h>
 #include <linux/kernel.h>
 #include <linux/kexec.h>
+#include <linux/sched/signal.h>
+
 #include <linux/extable.h>
 #include <linux/module.h>	/* print_modules */
 #include <asm/unwinder.h>
diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index 5078cb809750..c86f4360c6ce 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -10,7 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/perf_event.h>
 
diff --git a/arch/sh/mm/asids-debugfs.c b/arch/sh/mm/asids-debugfs.c
index bf95fdaedd0c..110bd35165bf 100644
--- a/arch/sh/mm/asids-debugfs.c
+++ b/arch/sh/mm/asids-debugfs.c
@@ -20,6 +20,8 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/spinlock.h>
+#include <linux/sched/signal.h>
+
 #include <asm/processor.h>
 #include <asm/mmu_context.h>
 
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 9bf876780cef..6fd1bf7481c7 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -13,6 +13,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/sched/signal.h>
 #include <linux/hardirq.h>
 #include <linux/kprobes.h>
 #include <linux/perf_event.h>
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index fb7b185ee941..ae49639a484e 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -7,7 +7,7 @@
 
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
 #include <linux/file.h>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 884c70331345..54d3999d8119 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -7,7 +7,7 @@
 
 #include <linux/errno.h>
 #include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/fs.h>
 #include <linux/file.h>
 #include <linux/mm.h>
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index d20d4e3fd129..8367dce5f41b 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -8,7 +8,7 @@
 
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 #include <asm/ptrace.h>
 #include <asm/processor.h>
diff --git a/arch/tile/mm/mmap.c b/arch/tile/mm/mmap.c
index ef61c597898b..377e312dc27e 100644
--- a/arch/tile/mm/mmap.c
+++ b/arch/tile/mm/mmap.c
@@ -17,7 +17,7 @@
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mman.h>
 #include <linux/compat.h>
 
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 62087028a9ce..366e57f5e8d6 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -5,8 +5,9 @@
 
 #include <linux/irqreturn.h>
 #include <linux/kd.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
+
 #include "chan.h"
 #include <irq_kern.h>
 #include <irq_user.h>
diff --git a/arch/um/kernel/reboot.c b/arch/um/kernel/reboot.c
index b60a9f8cda75..79218106a033 100644
--- a/arch/um/kernel/reboot.c
+++ b/arch/um/kernel/reboot.c
@@ -3,7 +3,7 @@
  * Licensed under the GPL
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/oom.h>
diff --git a/arch/um/kernel/skas/mmu.c b/arch/um/kernel/skas/mmu.c
index 3943e9d7d13d..7a1f2a936fd1 100644
--- a/arch/um/kernel/skas/mmu.c
+++ b/arch/um/kernel/skas/mmu.c
@@ -5,8 +5,9 @@
  */
 
 #include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
+
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/sections.h>
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 3777b82759bd..37508b190106 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -5,7 +5,8 @@
 
 #include <linux/mm.h>
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <as-layout.h>
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index ad8f206ab5e8..9711ae4aaa6a 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -4,7 +4,7 @@
  */
 
 #include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/hardirq.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
diff --git a/arch/unicore32/kernel/fpu-ucf64.c b/arch/unicore32/kernel/fpu-ucf64.c
index a53343a90ca2..12c8c9527b8e 100644
--- a/arch/unicore32/kernel/fpu-ucf64.c
+++ b/arch/unicore32/kernel/fpu-ucf64.c
@@ -13,7 +13,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/init.h>
 
 #include <asm/fpu-ucf64.h>
diff --git a/arch/unicore32/kernel/traps.c b/arch/unicore32/kernel/traps.c
index c54e32410ead..7f5e06f9a202 100644
--- a/arch/unicore32/kernel/traps.c
+++ b/arch/unicore32/kernel/traps.c
@@ -14,6 +14,7 @@
  */
 #include <linux/module.h>
 #include <linux/signal.h>
+#include <linux/sched/signal.h>
 #include <linux/spinlock.h>
 #include <linux/personality.h>
 #include <linux/kallsyms.h>
diff --git a/arch/unicore32/mm/fault.c b/arch/unicore32/mm/fault.c
index b656d216a8a8..bbefcc46a45e 100644
--- a/arch/unicore32/mm/fault.c
+++ b/arch/unicore32/mm/fault.c
@@ -17,7 +17,7 @@
 #include <linux/kprobes.h>
 #include <linux/uaccess.h>
 #include <linux/page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/io.h>
 
 #include <asm/pgtable.h>
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 636c4b341f36..df91fb393a01 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -27,6 +27,7 @@
 
 #include <linux/kernel.h>
 #include <linux/timer.h>
+#include <linux/sched/signal.h>
 #include <linux/syscalls.h>
 #include <linux/ratelimit.h>
 
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index 8af04afdfcb9..d48af18e7baf 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -25,7 +25,7 @@
 #include <linux/sysfs.h>
 #include <linux/kernfs.h>
 #include <linux/seq_file.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/cpu.h>
 #include <linux/task_work.h>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 1cda35277278..ac7810513d0e 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -36,6 +36,7 @@
 #include <linux/compiler.h>
 #include <linux/srcu.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/hash.h>
 #include <linux/kern_levels.h>
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index d2dc0438d654..5eabf34008f1 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -28,7 +28,7 @@
 #include <linux/mm.h>
 #include <linux/random.h>
 #include <linux/limits.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <asm/elf.h>
 
 struct va_alignment __read_mostly va_align = {
diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c
index 282bf721a4d6..84abd66e680d 100644
--- a/arch/xtensa/kernel/traps.c
+++ b/arch/xtensa/kernel/traps.c
@@ -24,7 +24,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/stringify.h>
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index e33e7fbe870b..aae4d8d4be36 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -31,7 +31,7 @@
 #include <linux/poll.h>
 #include <linux/debugfs.h>
 #include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 4cb8f21ff4ef..724d1c50fc52 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -30,7 +30,7 @@
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>
 #include <linux/ratelimit.h>
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index 59bcefd6ec7c..e452673dff66 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -16,7 +16,7 @@
  */
 
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <asm/byteorder.h>
 #include <asm/sn/sn_sal.h>
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index 6a3470f84998..d1ce83d73a87 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -23,7 +23,7 @@
 #include <linux/mm_types.h>
 #include <linux/slab.h>
 #include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index 32d43f86a8f2..96bb6badb818 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -34,6 +34,8 @@
  */
 
 #include <linux/export.h>
+#include <linux/sched/signal.h>
+
 #include <drm/drmP.h>
 #include "drm_legacy.h"
 #include "drm_internal.h"
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/ttm/ttm_lock.c
index f154fb1929bd..913f4318cdc0 100644
--- a/drivers/gpu/drm/ttm/ttm_lock.c
+++ b/drivers/gpu/drm/ttm/ttm_lock.c
@@ -33,7 +33,7 @@
 #include <linux/atomic.h>
 #include <linux/errno.h>
 #include <linux/wait.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/module.h>
 
 #define TTM_WRITE_LOCK_PENDING    (1 << 0)
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index d525b1a2986a..27f155d2df8d 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -34,7 +34,7 @@
 
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/export.h>
 #include <linux/hugetlb.h>
diff --git a/drivers/infiniband/hw/hfi1/user_pages.c b/drivers/infiniband/hw/hfi1/user_pages.c
index 20f4ddcac3b0..68295a12b771 100644
--- a/drivers/infiniband/hw/hfi1/user_pages.c
+++ b/drivers/infiniband/hw/hfi1/user_pages.c
@@ -46,7 +46,7 @@
  */
 
 #include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/device.h>
 #include <linux/module.h>
 
diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c
index 75f08624ac05..ce83ba9a12ef 100644
--- a/drivers/infiniband/hw/qib/qib_user_pages.c
+++ b/drivers/infiniband/hw/qib/qib_user_pages.c
@@ -32,6 +32,7 @@
  */
 
 #include <linux/mm.h>
+#include <linux/sched/signal.h>
 #include <linux/device.h>
 
 #include "qib.h"
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c
index ba868be5af2e..c49db7c33979 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom.c
+++ b/drivers/infiniband/hw/usnic/usnic_uiom.c
@@ -34,7 +34,7 @@
 
 #include <linux/mm.h>
 #include <linux/dma-mapping.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/hugetlb.h>
 #include <linux/iommu.h>
diff --git a/drivers/isdn/i4l/isdn_tty.c b/drivers/isdn/i4l/isdn_tty.c
index 63eaa0a9f8a1..1b169559a240 100644
--- a/drivers/isdn/i4l/isdn_tty.c
+++ b/drivers/isdn/i4l/isdn_tty.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
+#include <linux/sched/signal.h>
 #include "isdn_common.h"
 #include "isdn_tty.h"
 #ifdef CONFIG_ISDN_AUDIO
diff --git a/drivers/isdn/mISDN/l1oip_core.c b/drivers/isdn/mISDN/l1oip_core.c
index 67c21876c35f..6ceca7db62ad 100644
--- a/drivers/isdn/mISDN/l1oip_core.c
+++ b/drivers/isdn/mISDN/l1oip_core.c
@@ -234,6 +234,8 @@
 #include <linux/workqueue.h>
 #include <linux/kthread.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
+
 #include <net/sock.h>
 #include "core.h"
 #include "l1oip.h"
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 985374f20e2e..548d1b8014f8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -44,6 +44,7 @@
 
 */
 
+#include <linux/sched/signal.h>
 #include <linux/kthread.h>
 #include <linux/blkdev.h>
 #include <linux/badblocks.h>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 7453d94eeed7..fbc2d7851b49 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -37,7 +37,10 @@
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/ratelimit.h>
+#include <linux/sched/signal.h>
+
 #include <trace/events/block.h>
+
 #include "md.h"
 #include "raid1.h"
 #include "bitmap.h"
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 2ce23b01dbb2..4fb09b3fcb41 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -55,6 +55,8 @@
 #include <linux/ratelimit.h>
 #include <linux/nodemask.h>
 #include <linux/flex_array.h>
+#include <linux/sched/signal.h>
+
 #include <trace/events/block.h>
 
 #include "md.h"
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index cb290b8ca0c8..dd4617764f14 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -29,7 +29,7 @@
 #include <linux/pci.h>
 #include <linux/string.h>
 #include <linux/fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/wait.h>
 #include <linux/delay.h>
 #include <linux/atomic.h>
diff --git a/drivers/misc/mic/cosm/cosm_scif_server.c b/drivers/misc/mic/cosm/cosm_scif_server.c
index 5696df4326b5..85f7d09cc65f 100644
--- a/drivers/misc/mic/cosm/cosm_scif_server.c
+++ b/drivers/misc/mic/cosm/cosm_scif_server.c
@@ -19,6 +19,8 @@
  *
  */
 #include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
 #include "cosm_main.h"
 
 /*
diff --git a/drivers/misc/mic/cosm_client/cosm_scif_client.c b/drivers/misc/mic/cosm_client/cosm_scif_client.c
index 03e98bf1ac15..aa530fcceaa9 100644
--- a/drivers/misc/mic/cosm_client/cosm_scif_client.c
+++ b/drivers/misc/mic/cosm_client/cosm_scif_client.c
@@ -22,6 +22,8 @@
 #include <linux/delay.h>
 #include <linux/reboot.h>
 #include <linux/kthread.h>
+#include <linux/sched/signal.h>
+
 #include "../cosm/cosm_main.h"
 
 #define COSM_SCIF_MAX_RETRIES 10
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index d0e9c60f944e..329727e00e97 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -18,6 +18,7 @@
 #include <linux/dma_remapping.h>
 #include <linux/pagemap.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/signal.h>
 
 #include "scif_main.h"
 #include "scif_map.h"
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index 08db4d687533..1da31dc47f86 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -66,7 +66,7 @@
 
 #include <linux/uaccess.h>
 #include <linux/bitops.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/interrupt.h>
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index c5744b45ec8f..65689469c5a1 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -22,7 +22,7 @@
 #include <linux/pci_ids.h>
 #include <linux/netdevice.h>
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sdio_ids.h>
 #include <linux/mmc/sdio_func.h>
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index ef31b77404ef..e2a3112f1c98 100644
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -39,7 +39,7 @@
 #include <linux/kernel.h>
 #include <linux/notifier.h>
 #include <linux/reboot.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kthread.h>
 #include <linux/pm.h>
 
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index f2ab435954f6..73e496a72113 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/workqueue.h>
 #include <linux/reboot.h>
+#include <linux/sched/signal.h>
 
 #include <asm/firmware.h>
 #include <asm/lv1call.h>
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 85eca1cef063..c4518168fd02 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/compat.h>
+#include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/slab.h>
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 82c913318b73..ba0e4f93503d 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -7,7 +7,7 @@
  */
 
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/sysrq.h>
 
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index fdd4eb4e41b2..4fc8ed5fe067 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -39,7 +39,7 @@
 #include <linux/bitops.h>
 #include <linux/log2.h>
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/io.h>
 
 #include <scsi/scsi.h>
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index ed7f3228e234..89ef1a1678d1 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -25,7 +25,7 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/in.h>
 #include <linux/kfifo.h>
 #include <linux/netdevice.h>
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 834d1212b6d5..07c08ce68d70 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/log2.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <asm/unaligned.h>
 #include <net/tcp.h>
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index ec3b66561412..054660049395 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -37,7 +37,7 @@
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/oom.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/swap.h>
 #include <linux/rcupdate.h>
 #include <linux/profile.h>
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
index cf902154f0aa..bcf9f3dd0310 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
@@ -34,7 +34,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/fs_struct.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 #include "../../../include/linux/libcfs/libcfs.h"
 
diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index ee3f5ee06529..9e390648d93e 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -37,7 +37,7 @@
 #include <linux/io.h>
 #include <linux/mutex.h>
 #include <linux/sem.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/etherdevice.h>
 #include <linux/wireless.h>
 #include <net/iw_handler.h>
diff --git a/drivers/staging/rtl8712/osdep_service.h b/drivers/staging/rtl8712/osdep_service.h
index b8a170978434..5d33020554cd 100644
--- a/drivers/staging/rtl8712/osdep_service.h
+++ b/drivers/staging/rtl8712/osdep_service.h
@@ -33,7 +33,7 @@
 
 #include <linux/interrupt.h>
 #include <linux/semaphore.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sem.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index f19b6b27aa71..5346c657485d 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -32,6 +32,7 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/module.h>
 #include <linux/kref.h>
 #include <linux/netdevice.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index cb0b7ca36b1e..8a0d214f6e9b 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -34,6 +34,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/sched/signal.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/cdev.h>
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
index 4055d4bf9f74..e63964f5a18a 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_util.h
@@ -47,7 +47,7 @@
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/random.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/ctype.h>
 #include <linux/uaccess.h>
 #include <linux/time.h>  /* for time_t */
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index da2c73a255de..fa1d578d56bd 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -24,6 +24,7 @@
 #include <linux/vmalloc.h>
 #include <linux/idr.h>
 #include <linux/delay.h>
+#include <linux/sched/signal.h>
 #include <asm/unaligned.h>
 #include <net/ipv6.h>
 #include <scsi/scsi_proto.h>
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index b54e72c7ab0f..a4d5e6749932 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -17,6 +17,8 @@
  * GNU General Public License for more details.
  ******************************************************************************/
 
+#include <linux/sched/signal.h>
+
 #include <scsi/iscsi_proto.h>
 #include <target/target_core_base.h>
 #include <target/target_core_fabric.h>
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index eab274d17b5c..b03cc03423c1 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/kthread.h>
+#include <linux/sched/signal.h>
 #include <linux/idr.h>
 #include <linux/tcp.h>        /* TCP_NODELAY */
 #include <net/ipv6.h>         /* ipv6_addr_v4mapped() */
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 46388c9e08da..29eb09e0cd15 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -19,6 +19,7 @@
 #include <linux/ctype.h>
 #include <linux/kthread.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <net/sock.h>
 #include <scsi/iscsi_proto.h>
 #include <target/target_core_base.h>
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index a23fa5ed1d67..66b59a15780d 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -12,7 +12,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/string.h>
 #include <linux/major.h>
 #include <linux/mm.h>
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 71136742e606..65db0aeb3d80 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -14,7 +14,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/rt.h>
 #include <linux/interrupt.h>
 #include <linux/mm.h>
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index a1fd3f7d487a..985d33f0f315 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -69,7 +69,7 @@
 #include <linux/errno.h>
 #include <linux/signal.h>
 #include <linux/fcntl.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 397e1509fe51..6b3a2c00974d 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -26,7 +26,7 @@
 
 #include <linux/consolemap.h>
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/mm.h>
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 9d3ce505e7ab..5c4933bb4b53 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -72,7 +72,7 @@
 
 #include <linux/module.h>
 #include <linux/types.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/kernel.h>
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index a56edf2d58eb..0cbfe1ff6f6c 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -10,7 +10,7 @@
 
 #include <linux/types.h>
 #include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/tty.h>
 #include <linux/timer.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 5a59da0dc98a..3e80aa3b917a 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -74,7 +74,7 @@
 #include <linux/moduleparam.h>
 #include <linux/netdevice.h>
 #include <linux/proc_fs.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/signal.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index ca425e8099ea..cfc3cff6e8d5 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -36,6 +36,7 @@
 
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/signal.h>
 #include <linux/poll.h>
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index 8f3659b65f53..4c8aacc232c0 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -207,6 +207,7 @@
 #include <linux/fs.h>
 #include <linux/kref.h>
 #include <linux/kthread.h>
+#include <linux/sched/signal.h>
 #include <linux/limits.h>
 #include <linux/rwsem.h>
 #include <linux/slab.h>
diff --git a/drivers/vfio/vfio_iommu_spapr_tce.c b/drivers/vfio/vfio_iommu_spapr_tce.c
index 185d50ee1b12..cf3de91fbfe7 100644
--- a/drivers/vfio/vfio_iommu_spapr_tce.c
+++ b/drivers/vfio/vfio_iommu_spapr_tce.c
@@ -21,6 +21,7 @@
 #include <linux/vfio.h>
 #include <linux/vmalloc.h>
 #include <linux/sched/mm.h>
+#include <linux/sched/signal.h>
 
 #include <asm/iommu.h>
 #include <asm/tce.h>
diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c
index 7e94c7fc90ae..c26fa1f3ed86 100644
--- a/drivers/vfio/vfio_iommu_type1.c
+++ b/drivers/vfio/vfio_iommu_type1.c
@@ -31,7 +31,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/rbtree.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
diff --git a/drivers/w1/w1_family.c b/drivers/w1/w1_family.c
index df1c9bb90eb5..2096f460498f 100644
--- a/drivers/w1/w1_family.c
+++ b/drivers/w1/w1_family.c
@@ -14,7 +14,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/list.h>
-#include <linux/sched.h>	/* schedule_timeout() */
+#include <linux/sched/signal.h>
 #include <linux/delay.h>
 #include <linux/export.h>
 
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c
index 4ce1b66d5092..2cae7b29bb5f 100644
--- a/drivers/w1/w1_int.c
+++ b/drivers/w1/w1_int.c
@@ -17,6 +17,7 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/export.h>
 #include <linux/moduleparam.h>
 
diff --git a/fs/attr.c b/fs/attr.c
index c902b3d53508..135304146120 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -9,6 +9,7 @@
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/string.h>
+#include <linux/sched/signal.h>
 #include <linux/capability.h>
 #include <linux/fsnotify.h>
 #include <linux/fcntl.h>
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 79fbd85db4ba..24a58bf9ca72 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -10,6 +10,7 @@
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/signal.h>
+#include <linux/sched/signal.h>
 #include <linux/file.h>
 #include "autofs_i.h"
 
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 777ad9f4fc3c..9bf25be05636 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -21,6 +21,7 @@
 #include <linux/fs.h>
 #include <linux/net.h>
 #include <linux/string.h>
+#include <linux/sched/signal.h>
 #include <linux/list.h>
 #include <linux/wait.h>
 #include <linux/slab.h>
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index f6c6c8adbc01..e82357c89979 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -15,7 +15,7 @@
  */
 
 #include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
diff --git a/fs/coredump.c b/fs/coredump.c
index 23a539b29225..c74ab43b8383 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -17,6 +17,7 @@
 #include <linux/binfmts.h>
 #include <linux/coredump.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
 #include <linux/utsname.h>
 #include <linux/pid_namespace.h>
 #include <linux/module.h>
@@ -34,7 +35,6 @@
 #include <linux/pipe_fs_i.h>
 #include <linux/oom.h>
 #include <linux/compat.h>
-#include <linux/sched.h>
 #include <linux/fs.h>
 #include <linux/path.h>
 #include <linux/timekeeping.h>
diff --git a/fs/exec.c b/fs/exec.c
index 9c80d011594e..aa228b98ad5b 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -34,6 +34,7 @@
 #include <linux/init.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/coredump.h>
+#include <linux/sched/signal.h>
 #include <linux/pagemap.h>
 #include <linux/perf_event.h>
 #include <linux/highmem.h>
diff --git a/fs/file.c b/fs/file.c
index 69d6990e3021..ad6f094f2eff 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -12,7 +12,7 @@
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/time.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/file.h>
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index 7dca743b2ce1..543ed50f0387 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -1,5 +1,5 @@
 #include <linux/export.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/fs.h>
 #include <linux/path.h>
 #include <linux/slab.h>
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index e5c1783ab64a..453a6a1fff34 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -16,7 +16,7 @@
 #include <linux/jffs2.h>
 #include <linux/mtd/mtd.h>
 #include <linux/completion.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include "nodelist.h"
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 7e4ea3b9f472..e7c8b9c76e48 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -17,7 +17,7 @@
 #include <linux/sysctl.h>
 #include <linux/moduleparam.h>
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/in.h>
 #include <linux/uio.h>
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 7eb89c23c847..d5606099712a 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -30,6 +30,7 @@
 #include <linux/vfs.h>
 #include <linux/mount.h>
 #include <linux/seq_file.h>
+#include <linux/sched/signal.h>
 #include <linux/namei.h>
 
 #include <net/sock.h>
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index 97b111d79489..bdea177aa405 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -16,6 +16,7 @@
 #include <linux/fcntl.h>
 #include <linux/stat.h>
 #include <linux/string.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/in.h>
 #include <linux/net.h>
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 484bebc20bca..bb79972dc638 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -9,6 +9,7 @@
 #include <linux/completion.h>
 #include <linux/ip.h>
 #include <linux/module.h>
+#include <linux/sched/signal.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/sunrpc/svcsock.h>
 #include <linux/nfs_fs.h>
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index efd66da99201..786a4a2cb2d7 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -6,7 +6,7 @@
  * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/freezer.h>
 #include <linux/module.h>
 #include <linux/fs_struct.h>
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 00ce1531b2f5..c330495c3115 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -1,4 +1,4 @@
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/dcache.h>
 #include <linux/path.h>
diff --git a/fs/select.c b/fs/select.c
index 305c0daf5d67..e2112270d75a 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -15,7 +15,8 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
+#include <linux/sched/rt.h>
 #include <linux/syscalls.h>
 #include <linux/export.h>
 #include <linux/slab.h>
@@ -26,7 +27,6 @@
 #include <linux/fs.h>
 #include <linux/rcupdate.h>
 #include <linux/hrtimer.h>
-#include <linux/sched/rt.h>
 #include <linux/freezer.h>
 #include <net/busy_poll.h>
 #include <linux/vmalloc.h>
diff --git a/include/linux/oom.h b/include/linux/oom.h
index b4e36e92bc87..8a266e2be5a6 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -2,7 +2,7 @@
 #define __INCLUDE_LINUX_OOM_H
 
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/types.h>
 #include <linux/nodemask.h>
 #include <uapi/linux/oom.h>
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index e0e539321ab9..422bc2e4cb6a 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -3,6 +3,7 @@
 
 #include <linux/compiler.h>		/* For unlikely.  */
 #include <linux/sched.h>		/* For struct task_struct.  */
+#include <linux/sched/signal.h>		/* For send_sig(), same_thread_group(), etc. */
 #include <linux/err.h>			/* for IS_ERR_VALUE */
 #include <linux/bug.h>			/* For BUG_ON.  */
 #include <linux/pid_namespace.h>	/* For task_active_pid_ns.  */
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
new file mode 100644
index 000000000000..da69cd05cd68
--- /dev/null
+++ b/include/linux/sched/signal.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SCHED_SIGNAL_H
+#define _LINUX_SCHED_SIGNAL_H
+
+#include <linux/sched.h>
+
+#endif /* _LINUX_SCHED_SIGNAL_H */
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index eadbe227c256..4985048640a7 100644
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -8,7 +8,7 @@
 #define _LINUX_SIGNALFD_H
 
 #include <uapi/linux/signalfd.h>
-
+#include <linux/sched/signal.h>
 
 #ifdef CONFIG_SIGNALFD
 
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index 58de6edf751f..e2a5daf8d14f 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -8,7 +8,7 @@
 #define _LINUX_TASKSTATS_KERN_H
 
 #include <linux/taskstats.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/slab.h>
 
 #ifdef CONFIG_TASKSTATS
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 40e448de8a7e..4f7241fbeff3 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -36,6 +36,7 @@
 #include <linux/user_namespace.h>
 #include <linux/slab.h>
 #include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>
 
 #include <net/sock.h>
 #include "util.h"
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 461eb1e66a0f..7af0dcc5d755 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -13,6 +13,7 @@
 #include <linux/bpf_trace.h>
 #include <linux/syscalls.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/vmalloc.h>
 #include <linux/mmzone.h>
 #include <linux/anon_inodes.h>
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0a5f630f5c54..0aae3183b029 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -7,7 +7,7 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/notifier.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/unistd.h>
 #include <linux/cpu.h>
 #include <linux/oom.h>
diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
index 19d9a578c753..7510dc687c0d 100644
--- a/kernel/debug/gdbstub.c
+++ b/kernel/debug/gdbstub.c
@@ -29,6 +29,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/sched/signal.h>
 #include <linux/kgdb.h>
 #include <linux/kdb.h>
 #include <linux/serial_core.h>
diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index fe15fff5df53..9b976a42376d 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -12,7 +12,7 @@
 #include <linux/ctype.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/kdb.h>
 #include <linux/nmi.h>
 #include "kdb_private.h"
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 40c07e4fa116..129247e56902 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -16,6 +16,8 @@
 #include <linux/export.h>
 #include <linux/sysctl.h>
 #include <linux/utsname.h>
+#include <linux/sched/signal.h>
+
 #include <trace/events/sched.h>
 
 /*
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index a0e90e0afc75..da128deb10ec 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -36,7 +36,7 @@
 #include <linux/spinlock.h>
 #include <linux/smp.h>
 #include <linux/interrupt.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/atomic.h>
 #include <linux/bitops.h>
 #include <linux/percpu.h>
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e2307a6c29f1..641249471952 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -5,6 +5,7 @@
 #include <linux/sched/rt.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/wake_q.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/u64_stats_sync.h>
 #include <linux/sched/deadline.h>
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index a95f13c31464..f6b961c5e58c 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -10,6 +10,7 @@
 #include <linux/interrupt.h>
 #include <linux/syscalls.h>
 #include <linux/time.h>
+#include <linux/sched/signal.h>
 #include <linux/posix-timers.h>
 #include <linux/hrtimer.h>
 #include <trace/events/timer.h>
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index b4377a5e4269..a2475a9f57d8 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -2,7 +2,7 @@
  * Implement CPU time clocks for the POSIX clock interface.
  */
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/posix-timers.h>
 #include <linux/errno.h>
 #include <linux/math64.h>
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 4fee1c3abd0b..0f411a4690a0 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -18,7 +18,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/percpu.h>
 #include <linux/profile.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/clock.h>
 #include <linux/module.h>
 #include <linux/irq_work.h>
diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c
index 1f9a31f934a4..9f6984d52fec 100644
--- a/kernel/tracepoint.c
+++ b/kernel/tracepoint.c
@@ -24,7 +24,7 @@
 #include <linux/tracepoint.h>
 #include <linux/err.h>
 #include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/static_key.h>
 
 extern struct tracepoint * const __start___tracepoints_ptrs[];
diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 571a2d3821d8..d9a03b80b75d 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -17,7 +17,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/sched/mm.h>
 #include <linux/tsacct_kern.h>
 #include <linux/acct.h>
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 86b7854fec8e..2f735cbe05e8 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -8,6 +8,7 @@
 #include <linux/export.h>
 #include <linux/nsproxy.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/user_namespace.h>
 #include <linux/proc_ns.h>
 #include <linux/highuid.h>
diff --git a/lib/is_single_threaded.c b/lib/is_single_threaded.c
index 391fd23976a2..9745cfffcb69 100644
--- a/lib/is_single_threaded.c
+++ b/lib/is_single_threaded.c
@@ -9,8 +9,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the Licence, or (at your option) any later version.
  */
-
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 
 /*
  * Returns true if the task does not share ->mm with another thread/process.
diff --git a/mm/filemap.c b/mm/filemap.c
index 1944c631e3e6..1694623a6289 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -13,6 +13,7 @@
 #include <linux/compiler.h>
 #include <linux/dax.h>
 #include <linux/fs.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/capability.h>
 #include <linux/kernel_stat.h>
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index da3436953022..2df6d3687b2a 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -73,7 +73,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/jiffies.h>
 #include <linux/delay.h>
 #include <linux/export.h>
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 3d0f2fd4bf73..b74984db386e 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -40,7 +40,7 @@
 #include <linux/mm.h>
 #include <linux/page-flags.h>
 #include <linux/kernel-page-flags.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/ksm.h>
 #include <linux/rmap.h>
 #include <linux/export.h>
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 7c233f8e20ee..4355d34c68a6 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2014 Davidlohr Bueso.
  */
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/mm.h>
 #include <linux/vmacache.h>
 
diff --git a/net/9p/client.c b/net/9p/client.c
index 3fc94a49ccd5..25cfd8a4bc36 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -32,7 +32,7 @@
 #include <linux/idr.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/uaccess.h>
 #include <linux/uio.h>
 #include <net/9p/9p.h>
diff --git a/net/atm/common.c b/net/atm/common.c
index a3ca922d307b..9613381f5db0 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -13,7 +13,7 @@
 #include <linux/errno.h>	/* error codes */
 #include <linux/capability.h>
 #include <linux/mm.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/time.h>		/* struct timeval */
 #include <linux/skbuff.h>
 #include <linux/bitops.h>
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 90fcf5fc2e0a..a8e42cedf1db 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -20,7 +20,7 @@
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/sockios.h>
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 92cbbd2afddb..adcad344c843 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -9,7 +9,7 @@
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
 #include <linux/list.h>
diff --git a/net/core/stream.c b/net/core/stream.c
index f575bcf64af2..20231dbb1da0 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/sched/signal.h>
 #include <linux/net.h>
 #include <linux/signal.h>
 #include <linux/tcp.h>
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index a90ed67027b0..e6e79eda9763 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -106,7 +106,7 @@ Version 0.0.6    2.1.110   07-aug-98   Eduardo Marcelo Serrat
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/sockios.h>
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index ab254041dab7..81adc29a448d 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -46,6 +46,7 @@
 #include <linux/socket.h>
 #include <linux/sockios.h>
 #include <linux/slab.h>
+#include <linux/sched/signal.h>
 #include <linux/init.h>
 #include <linux/net.h>
 #include <linux/irda.h>
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index ed212ffc1d9d..4bbf4526b885 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -17,7 +17,7 @@
 #include <linux/in.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/sockios.h>
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 9ad301c46b88..b8a1df2c9785 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -20,7 +20,7 @@
 #include <linux/in.h>
 #include <linux/slab.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>
 #include <linux/string.h>
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 465a9c8464f9..6f0a9be50f50 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -57,6 +57,7 @@
 #include <linux/kernel.h>
 #include <linux/wait.h>
 #include <linux/time.h>
+#include <linux/sched/signal.h>
 #include <linux/ip.h>
 #include <linux/capability.h>
 #include <linux/fcntl.h>
diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index b94efd93d3e4..a08aeb56b8e4 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/linkage.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/net.h>
 #include <linux/in.h>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index e2d18b9f910f..ee37b390260a 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -85,7 +85,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/signal.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/stat.h>
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 079c883aa96e..fd28a49dbe8f 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -41,7 +41,7 @@
 #include <linux/capability.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/net.h>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 9a8f12f8d5b7..b12f873f92ba 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -28,7 +28,7 @@
 #include <linux/kernel.h>
 #include <linux/tracehook.h>
 #include <linux/errno.h>
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/lsm_hooks.h>
 #include <linux/xattr.h>
 #include <linux/capability.h>
-- 
cgit v1.2.3


From cdfbabfb2f0ce983fdaa42f20e5f7842178fc01e Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Thu, 9 Mar 2017 08:09:05 +0000
Subject: net: Work around lockdep limitation in sockets that use sockets

Lockdep issues a circular dependency warning when AFS issues an operation
through AF_RXRPC from a context in which the VFS/VM holds the mmap_sem.

The theory lockdep comes up with is as follows:

 (1) If the pagefault handler decides it needs to read pages from AFS, it
     calls AFS with mmap_sem held and AFS begins an AF_RXRPC call, but
     creating a call requires the socket lock:

	mmap_sem must be taken before sk_lock-AF_RXRPC

 (2) afs_open_socket() opens an AF_RXRPC socket and binds it.  rxrpc_bind()
     binds the underlying UDP socket whilst holding its socket lock.
     inet_bind() takes its own socket lock:

	sk_lock-AF_RXRPC must be taken before sk_lock-AF_INET

 (3) Reading from a TCP socket into a userspace buffer might cause a fault
     and thus cause the kernel to take the mmap_sem, but the TCP socket is
     locked whilst doing this:

	sk_lock-AF_INET must be taken before mmap_sem

However, lockdep's theory is wrong in this instance because it deals only
with lock classes and not individual locks.  The AF_INET lock in (2) isn't
really equivalent to the AF_INET lock in (3) as the former deals with a
socket entirely internal to the kernel that never sees userspace.  This is
a limitation in the design of lockdep.

Fix the general case by:

 (1) Double up all the locking keys used in sockets so that one set are
     used if the socket is created by userspace and the other set is used
     if the socket is created by the kernel.

 (2) Store the kern parameter passed to sk_alloc() in a variable in the
     sock struct (sk_kern_sock).  This informs sock_lock_init(),
     sock_init_data() and sk_clone_lock() as to the lock keys to be used.

     Note that the child created by sk_clone_lock() inherits the parent's
     kern setting.

 (3) Add a 'kern' parameter to ->accept() that is analogous to the one
     passed in to ->create() that distinguishes whether kernel_accept() or
     sys_accept4() was the caller and can be passed to sk_alloc().

     Note that a lot of accept functions merely dequeue an already
     allocated socket.  I haven't touched these as the new socket already
     exists before we get the parameter.

     Note also that there are a couple of places where I've made the accepted
     socket unconditionally kernel-based:

	irda_accept()
	rds_rcp_accept_one()
	tcp_accept_from_sock()

     because they follow a sock_create_kern() and accept off of that.

Whilst creating this, I noticed that lustre and ocfs don't create sockets
through sock_create_kern() and thus they aren't marked as for-kernel,
though they appear to be internal.  I wonder if these should do that so
that they use the new set of lock keys.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 crypto/af_alg.c                               |   9 ++-
 crypto/algif_hash.c                           |   9 ++-
 drivers/staging/lustre/lnet/lnet/lib-socket.c |   4 +-
 fs/dlm/lowcomms.c                             |   2 +-
 fs/ocfs2/cluster/tcp.c                        |   2 +-
 include/crypto/if_alg.h                       |   2 +-
 include/linux/net.h                           |   2 +-
 include/net/inet_common.h                     |   3 +-
 include/net/inet_connection_sock.h            |   2 +-
 include/net/sctp/structs.h                    |   3 +-
 include/net/sock.h                            |   9 ++-
 net/atm/svc.c                                 |   5 +-
 net/ax25/af_ax25.c                            |   3 +-
 net/bluetooth/l2cap_sock.c                    |   2 +-
 net/bluetooth/rfcomm/sock.c                   |   3 +-
 net/bluetooth/sco.c                           |   2 +-
 net/core/sock.c                               | 106 ++++++++++++++------------
 net/decnet/af_decnet.c                        |   5 +-
 net/ipv4/af_inet.c                            |   5 +-
 net/ipv4/inet_connection_sock.c               |   2 +-
 net/irda/af_irda.c                            |   5 +-
 net/iucv/af_iucv.c                            |   2 +-
 net/llc/af_llc.c                              |   4 +-
 net/netrom/af_netrom.c                        |   3 +-
 net/nfc/llcp_sock.c                           |   2 +-
 net/phonet/pep.c                              |   6 +-
 net/phonet/socket.c                           |   4 +-
 net/rds/tcp_listen.c                          |   2 +-
 net/rose/af_rose.c                            |   3 +-
 net/sctp/ipv6.c                               |   5 +-
 net/sctp/protocol.c                           |   5 +-
 net/sctp/socket.c                             |   4 +-
 net/smc/af_smc.c                              |   2 +-
 net/socket.c                                  |   4 +-
 net/tipc/socket.c                             |   8 +-
 net/unix/af_unix.c                            |   5 +-
 net/vmw_vsock/af_vsock.c                      |   3 +-
 net/x25/af_x25.c                              |   3 +-
 38 files changed, 142 insertions(+), 108 deletions(-)

(limited to 'net/unix/af_unix.c')

diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index f5e18c2a4852..690deca17c35 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -266,7 +266,7 @@ unlock:
 	return err;
 }
 
-int af_alg_accept(struct sock *sk, struct socket *newsock)
+int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern)
 {
 	struct alg_sock *ask = alg_sk(sk);
 	const struct af_alg_type *type;
@@ -281,7 +281,7 @@ int af_alg_accept(struct sock *sk, struct socket *newsock)
 	if (!type)
 		goto unlock;
 
-	sk2 = sk_alloc(sock_net(sk), PF_ALG, GFP_KERNEL, &alg_proto, 0);
+	sk2 = sk_alloc(sock_net(sk), PF_ALG, GFP_KERNEL, &alg_proto, kern);
 	err = -ENOMEM;
 	if (!sk2)
 		goto unlock;
@@ -323,9 +323,10 @@ unlock:
 }
 EXPORT_SYMBOL_GPL(af_alg_accept);
 
-static int alg_accept(struct socket *sock, struct socket *newsock, int flags)
+static int alg_accept(struct socket *sock, struct socket *newsock, int flags,
+		      bool kern)
 {
-	return af_alg_accept(sock->sk, newsock);
+	return af_alg_accept(sock->sk, newsock, kern);
 }
 
 static const struct proto_ops alg_proto_ops = {
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 54fc90e8339c..5e92bd275ef3 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -239,7 +239,8 @@ unlock:
 	return err ?: len;
 }
 
-static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
+static int hash_accept(struct socket *sock, struct socket *newsock, int flags,
+		       bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct alg_sock *ask = alg_sk(sk);
@@ -260,7 +261,7 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags)
 	if (err)
 		return err;
 
-	err = af_alg_accept(ask->parent, newsock);
+	err = af_alg_accept(ask->parent, newsock, kern);
 	if (err)
 		return err;
 
@@ -378,7 +379,7 @@ static int hash_recvmsg_nokey(struct socket *sock, struct msghdr *msg,
 }
 
 static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
-			     int flags)
+			     int flags, bool kern)
 {
 	int err;
 
@@ -386,7 +387,7 @@ static int hash_accept_nokey(struct socket *sock, struct socket *newsock,
 	if (err)
 		return err;
 
-	return hash_accept(sock, newsock, flags);
+	return hash_accept(sock, newsock, flags, kern);
 }
 
 static struct proto_ops algif_hash_ops_nokey = {
diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c
index b7b87ecefcdf..9fca8d225ee0 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-socket.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c
@@ -532,7 +532,7 @@ lnet_sock_accept(struct socket **newsockp, struct socket *sock)
 
 	newsock->ops = sock->ops;
 
-	rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
+	rc = sock->ops->accept(sock, newsock, O_NONBLOCK, false);
 	if (rc == -EAGAIN) {
 		/* Nothing ready, so wait for activity */
 		init_waitqueue_entry(&wait, current);
@@ -540,7 +540,7 @@ lnet_sock_accept(struct socket **newsockp, struct socket *sock)
 		set_current_state(TASK_INTERRUPTIBLE);
 		schedule();
 		remove_wait_queue(sk_sleep(sock->sk), &wait);
-		rc = sock->ops->accept(sock, newsock, O_NONBLOCK);
+		rc = sock->ops->accept(sock, newsock, O_NONBLOCK, false);
 	}
 
 	if (rc)
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 7d398d300e97..9382db998ec9 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -743,7 +743,7 @@ static int tcp_accept_from_sock(struct connection *con)
 	newsock->type = con->sock->type;
 	newsock->ops = con->sock->ops;
 
-	result = con->sock->ops->accept(con->sock, newsock, O_NONBLOCK);
+	result = con->sock->ops->accept(con->sock, newsock, O_NONBLOCK, true);
 	if (result < 0)
 		goto accept_err;
 
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index 4348027384f5..d0ab7e56d0b4 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -1863,7 +1863,7 @@ static int o2net_accept_one(struct socket *sock, int *more)
 
 	new_sock->type = sock->type;
 	new_sock->ops = sock->ops;
-	ret = sock->ops->accept(sock, new_sock, O_NONBLOCK);
+	ret = sock->ops->accept(sock, new_sock, O_NONBLOCK, false);
 	if (ret < 0)
 		goto out;
 
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index a2bfd7843f18..e2b9c6fe2714 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -73,7 +73,7 @@ int af_alg_unregister_type(const struct af_alg_type *type);
 
 int af_alg_release(struct socket *sock);
 void af_alg_release_parent(struct sock *sk);
-int af_alg_accept(struct sock *sk, struct socket *newsock);
+int af_alg_accept(struct sock *sk, struct socket *newsock, bool kern);
 
 int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len);
 void af_alg_free_sg(struct af_alg_sgl *sgl);
diff --git a/include/linux/net.h b/include/linux/net.h
index cd0c8bd0a1de..0620f5e18c96 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -146,7 +146,7 @@ struct proto_ops {
 	int		(*socketpair)(struct socket *sock1,
 				      struct socket *sock2);
 	int		(*accept)    (struct socket *sock,
-				      struct socket *newsock, int flags);
+				      struct socket *newsock, int flags, bool kern);
 	int		(*getname)   (struct socket *sock,
 				      struct sockaddr *addr,
 				      int *sockaddr_len, int peer);
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index b7952d55b9c0..f39ae697347f 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -20,7 +20,8 @@ int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
 			  int addr_len, int flags, int is_sendmsg);
 int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
 		       int addr_len, int flags);
-int inet_accept(struct socket *sock, struct socket *newsock, int flags);
+int inet_accept(struct socket *sock, struct socket *newsock, int flags,
+		bool kern);
 int inet_sendmsg(struct socket *sock, struct msghdr *msg, size_t size);
 ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
 		      size_t size, int flags);
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 826f198374f8..c7a577976bec 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -258,7 +258,7 @@ inet_csk_rto_backoff(const struct inet_connection_sock *icsk,
         return (unsigned long)min_t(u64, when, max_when);
 }
 
-struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
+struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern);
 
 int inet_csk_get_port(struct sock *sk, unsigned short snum);
 
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index a244db5e5ff7..07a0b128625a 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -476,7 +476,8 @@ struct sctp_pf {
 	int  (*send_verify) (struct sctp_sock *, union sctp_addr *);
 	int  (*supported_addrs)(const struct sctp_sock *, __be16 *);
 	struct sock *(*create_accept_sk) (struct sock *sk,
-					  struct sctp_association *asoc);
+					  struct sctp_association *asoc,
+					  bool kern);
 	int (*addr_to_user)(struct sctp_sock *sk, union sctp_addr *addr);
 	void (*to_sk_saddr)(union sctp_addr *, struct sock *sk);
 	void (*to_sk_daddr)(union sctp_addr *, struct sock *sk);
diff --git a/include/net/sock.h b/include/net/sock.h
index 5e5997654db6..03252d53975d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -236,6 +236,7 @@ struct sock_common {
   *	@sk_shutdown: mask of %SEND_SHUTDOWN and/or %RCV_SHUTDOWN
   *	@sk_userlocks: %SO_SNDBUF and %SO_RCVBUF settings
   *	@sk_lock:	synchronizer
+  *	@sk_kern_sock: True if sock is using kernel lock classes
   *	@sk_rcvbuf: size of receive buffer in bytes
   *	@sk_wq: sock wait queue and async head
   *	@sk_rx_dst: receive input route used by early demux
@@ -430,7 +431,8 @@ struct sock {
 #endif
 
 	kmemcheck_bitfield_begin(flags);
-	unsigned int		sk_padding : 2,
+	unsigned int		sk_padding : 1,
+				sk_kern_sock : 1,
 				sk_no_check_tx : 1,
 				sk_no_check_rx : 1,
 				sk_userlocks : 4,
@@ -1015,7 +1017,8 @@ struct proto {
 					int addr_len);
 	int			(*disconnect)(struct sock *sk, int flags);
 
-	struct sock *		(*accept)(struct sock *sk, int flags, int *err);
+	struct sock *		(*accept)(struct sock *sk, int flags, int *err,
+					  bool kern);
 
 	int			(*ioctl)(struct sock *sk, int cmd,
 					 unsigned long arg);
@@ -1573,7 +1576,7 @@ int sock_cmsg_send(struct sock *sk, struct msghdr *msg,
 int sock_no_bind(struct socket *, struct sockaddr *, int);
 int sock_no_connect(struct socket *, struct sockaddr *, int, int);
 int sock_no_socketpair(struct socket *, struct socket *);
-int sock_no_accept(struct socket *, struct socket *, int);
+int sock_no_accept(struct socket *, struct socket *, int, bool);
 int sock_no_getname(struct socket *, struct sockaddr *, int *, int);
 unsigned int sock_no_poll(struct file *, struct socket *,
 			  struct poll_table_struct *);
diff --git a/net/atm/svc.c b/net/atm/svc.c
index db9794ec61d8..5589de7086af 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -318,7 +318,8 @@ out:
 	return error;
 }
 
-static int svc_accept(struct socket *sock, struct socket *newsock, int flags)
+static int svc_accept(struct socket *sock, struct socket *newsock, int flags,
+		      bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct sk_buff *skb;
@@ -329,7 +330,7 @@ static int svc_accept(struct socket *sock, struct socket *newsock, int flags)
 
 	lock_sock(sk);
 
-	error = svc_create(sock_net(sk), newsock, 0, 0);
+	error = svc_create(sock_net(sk), newsock, 0, kern);
 	if (error)
 		goto out;
 
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index a8e42cedf1db..b7c486752b3a 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1320,7 +1320,8 @@ out_release:
 	return err;
 }
 
-static int ax25_accept(struct socket *sock, struct socket *newsock, int flags)
+static int ax25_accept(struct socket *sock, struct socket *newsock, int flags,
+		       bool kern)
 {
 	struct sk_buff *skb;
 	struct sock *newsk;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f307b145ea54..507b80d59dec 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -301,7 +301,7 @@ done:
 }
 
 static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
-			     int flags)
+			     int flags, bool kern)
 {
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	struct sock *sk = sock->sk, *nsk;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index aa1a814ceddc..ac3c650cb234 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -471,7 +471,8 @@ done:
 	return err;
 }
 
-static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int flags)
+static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int flags,
+			      bool kern)
 {
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	struct sock *sk = sock->sk, *nsk;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index e4e9a2da1e7e..728e0c8dc8e7 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -627,7 +627,7 @@ done:
 }
 
 static int sco_sock_accept(struct socket *sock, struct socket *newsock,
-			   int flags)
+			   int flags, bool kern)
 {
 	DEFINE_WAIT_FUNC(wait, woken_wake_function);
 	struct sock *sk = sock->sk, *ch;
diff --git a/net/core/sock.c b/net/core/sock.c
index f6fd79f33097..a96d5f7a5734 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -197,66 +197,55 @@ EXPORT_SYMBOL(sk_net_capable);
 
 /*
  * Each address family might have different locking rules, so we have
- * one slock key per address family:
+ * one slock key per address family and separate keys for internal and
+ * userspace sockets.
  */
 static struct lock_class_key af_family_keys[AF_MAX];
+static struct lock_class_key af_family_kern_keys[AF_MAX];
 static struct lock_class_key af_family_slock_keys[AF_MAX];
+static struct lock_class_key af_family_kern_slock_keys[AF_MAX];
 
 /*
  * Make lock validator output more readable. (we pre-construct these
  * strings build-time, so that runtime initialization of socket
  * locks is fast):
  */
+
+#define _sock_locks(x)						  \
+  x "AF_UNSPEC",	x "AF_UNIX"     ,	x "AF_INET"     , \
+  x "AF_AX25"  ,	x "AF_IPX"      ,	x "AF_APPLETALK", \
+  x "AF_NETROM",	x "AF_BRIDGE"   ,	x "AF_ATMPVC"   , \
+  x "AF_X25"   ,	x "AF_INET6"    ,	x "AF_ROSE"     , \
+  x "AF_DECnet",	x "AF_NETBEUI"  ,	x "AF_SECURITY" , \
+  x "AF_KEY"   ,	x "AF_NETLINK"  ,	x "AF_PACKET"   , \
+  x "AF_ASH"   ,	x "AF_ECONET"   ,	x "AF_ATMSVC"   , \
+  x "AF_RDS"   ,	x "AF_SNA"      ,	x "AF_IRDA"     , \
+  x "AF_PPPOX" ,	x "AF_WANPIPE"  ,	x "AF_LLC"      , \
+  x "27"       ,	x "28"          ,	x "AF_CAN"      , \
+  x "AF_TIPC"  ,	x "AF_BLUETOOTH",	x "IUCV"        , \
+  x "AF_RXRPC" ,	x "AF_ISDN"     ,	x "AF_PHONET"   , \
+  x "AF_IEEE802154",	x "AF_CAIF"	,	x "AF_ALG"      , \
+  x "AF_NFC"   ,	x "AF_VSOCK"    ,	x "AF_KCM"      , \
+  x "AF_QIPCRTR",	x "AF_SMC"	,	x "AF_MAX"
+
 static const char *const af_family_key_strings[AF_MAX+1] = {
-  "sk_lock-AF_UNSPEC", "sk_lock-AF_UNIX"     , "sk_lock-AF_INET"     ,
-  "sk_lock-AF_AX25"  , "sk_lock-AF_IPX"      , "sk_lock-AF_APPLETALK",
-  "sk_lock-AF_NETROM", "sk_lock-AF_BRIDGE"   , "sk_lock-AF_ATMPVC"   ,
-  "sk_lock-AF_X25"   , "sk_lock-AF_INET6"    , "sk_lock-AF_ROSE"     ,
-  "sk_lock-AF_DECnet", "sk_lock-AF_NETBEUI"  , "sk_lock-AF_SECURITY" ,
-  "sk_lock-AF_KEY"   , "sk_lock-AF_NETLINK"  , "sk_lock-AF_PACKET"   ,
-  "sk_lock-AF_ASH"   , "sk_lock-AF_ECONET"   , "sk_lock-AF_ATMSVC"   ,
-  "sk_lock-AF_RDS"   , "sk_lock-AF_SNA"      , "sk_lock-AF_IRDA"     ,
-  "sk_lock-AF_PPPOX" , "sk_lock-AF_WANPIPE"  , "sk_lock-AF_LLC"      ,
-  "sk_lock-27"       , "sk_lock-28"          , "sk_lock-AF_CAN"      ,
-  "sk_lock-AF_TIPC"  , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV"        ,
-  "sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN"     , "sk_lock-AF_PHONET"   ,
-  "sk_lock-AF_IEEE802154", "sk_lock-AF_CAIF" , "sk_lock-AF_ALG"      ,
-  "sk_lock-AF_NFC"   , "sk_lock-AF_VSOCK"    , "sk_lock-AF_KCM"      ,
-  "sk_lock-AF_QIPCRTR", "sk_lock-AF_SMC"     , "sk_lock-AF_MAX"
+	_sock_locks("sk_lock-")
 };
 static const char *const af_family_slock_key_strings[AF_MAX+1] = {
-  "slock-AF_UNSPEC", "slock-AF_UNIX"     , "slock-AF_INET"     ,
-  "slock-AF_AX25"  , "slock-AF_IPX"      , "slock-AF_APPLETALK",
-  "slock-AF_NETROM", "slock-AF_BRIDGE"   , "slock-AF_ATMPVC"   ,
-  "slock-AF_X25"   , "slock-AF_INET6"    , "slock-AF_ROSE"     ,
-  "slock-AF_DECnet", "slock-AF_NETBEUI"  , "slock-AF_SECURITY" ,
-  "slock-AF_KEY"   , "slock-AF_NETLINK"  , "slock-AF_PACKET"   ,
-  "slock-AF_ASH"   , "slock-AF_ECONET"   , "slock-AF_ATMSVC"   ,
-  "slock-AF_RDS"   , "slock-AF_SNA"      , "slock-AF_IRDA"     ,
-  "slock-AF_PPPOX" , "slock-AF_WANPIPE"  , "slock-AF_LLC"      ,
-  "slock-27"       , "slock-28"          , "slock-AF_CAN"      ,
-  "slock-AF_TIPC"  , "slock-AF_BLUETOOTH", "slock-AF_IUCV"     ,
-  "slock-AF_RXRPC" , "slock-AF_ISDN"     , "slock-AF_PHONET"   ,
-  "slock-AF_IEEE802154", "slock-AF_CAIF" , "slock-AF_ALG"      ,
-  "slock-AF_NFC"   , "slock-AF_VSOCK"    ,"slock-AF_KCM"       ,
-  "slock-AF_QIPCRTR", "slock-AF_SMC"     , "slock-AF_MAX"
+	_sock_locks("slock-")
 };
 static const char *const af_family_clock_key_strings[AF_MAX+1] = {
-  "clock-AF_UNSPEC", "clock-AF_UNIX"     , "clock-AF_INET"     ,
-  "clock-AF_AX25"  , "clock-AF_IPX"      , "clock-AF_APPLETALK",
-  "clock-AF_NETROM", "clock-AF_BRIDGE"   , "clock-AF_ATMPVC"   ,
-  "clock-AF_X25"   , "clock-AF_INET6"    , "clock-AF_ROSE"     ,
-  "clock-AF_DECnet", "clock-AF_NETBEUI"  , "clock-AF_SECURITY" ,
-  "clock-AF_KEY"   , "clock-AF_NETLINK"  , "clock-AF_PACKET"   ,
-  "clock-AF_ASH"   , "clock-AF_ECONET"   , "clock-AF_ATMSVC"   ,
-  "clock-AF_RDS"   , "clock-AF_SNA"      , "clock-AF_IRDA"     ,
-  "clock-AF_PPPOX" , "clock-AF_WANPIPE"  , "clock-AF_LLC"      ,
-  "clock-27"       , "clock-28"          , "clock-AF_CAN"      ,
-  "clock-AF_TIPC"  , "clock-AF_BLUETOOTH", "clock-AF_IUCV"     ,
-  "clock-AF_RXRPC" , "clock-AF_ISDN"     , "clock-AF_PHONET"   ,
-  "clock-AF_IEEE802154", "clock-AF_CAIF" , "clock-AF_ALG"      ,
-  "clock-AF_NFC"   , "clock-AF_VSOCK"    , "clock-AF_KCM"      ,
-  "clock-AF_QIPCRTR", "clock-AF_SMC"     , "clock-AF_MAX"
+	_sock_locks("clock-")
+};
+
+static const char *const af_family_kern_key_strings[AF_MAX+1] = {
+	_sock_locks("k-sk_lock-")
+};
+static const char *const af_family_kern_slock_key_strings[AF_MAX+1] = {
+	_sock_locks("k-slock-")
+};
+static const char *const af_family_kern_clock_key_strings[AF_MAX+1] = {
+	_sock_locks("k-clock-")
 };
 
 /*
@@ -264,6 +253,7 @@ static const char *const af_family_clock_key_strings[AF_MAX+1] = {
  * so split the lock classes by using a per-AF key:
  */
 static struct lock_class_key af_callback_keys[AF_MAX];
+static struct lock_class_key af_kern_callback_keys[AF_MAX];
 
 /* Take into consideration the size of the struct sk_buff overhead in the
  * determination of these values, since that is non-constant across
@@ -1293,7 +1283,16 @@ lenout:
  */
 static inline void sock_lock_init(struct sock *sk)
 {
-	sock_lock_init_class_and_name(sk,
+	if (sk->sk_kern_sock)
+		sock_lock_init_class_and_name(
+			sk,
+			af_family_kern_slock_key_strings[sk->sk_family],
+			af_family_kern_slock_keys + sk->sk_family,
+			af_family_kern_key_strings[sk->sk_family],
+			af_family_kern_keys + sk->sk_family);
+	else
+		sock_lock_init_class_and_name(
+			sk,
 			af_family_slock_key_strings[sk->sk_family],
 			af_family_slock_keys + sk->sk_family,
 			af_family_key_strings[sk->sk_family],
@@ -1399,6 +1398,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
 		 * why we need sk_prot_creator -acme
 		 */
 		sk->sk_prot = sk->sk_prot_creator = prot;
+		sk->sk_kern_sock = kern;
 		sock_lock_init(sk);
 		sk->sk_net_refcnt = kern ? 0 : 1;
 		if (likely(sk->sk_net_refcnt))
@@ -2277,7 +2277,8 @@ int sock_no_socketpair(struct socket *sock1, struct socket *sock2)
 }
 EXPORT_SYMBOL(sock_no_socketpair);
 
-int sock_no_accept(struct socket *sock, struct socket *newsock, int flags)
+int sock_no_accept(struct socket *sock, struct socket *newsock, int flags,
+		   bool kern)
 {
 	return -EOPNOTSUPP;
 }
@@ -2481,7 +2482,14 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	}
 
 	rwlock_init(&sk->sk_callback_lock);
-	lockdep_set_class_and_name(&sk->sk_callback_lock,
+	if (sk->sk_kern_sock)
+		lockdep_set_class_and_name(
+			&sk->sk_callback_lock,
+			af_kern_callback_keys + sk->sk_family,
+			af_family_kern_clock_key_strings[sk->sk_family]);
+	else
+		lockdep_set_class_and_name(
+			&sk->sk_callback_lock,
 			af_callback_keys + sk->sk_family,
 			af_family_clock_key_strings[sk->sk_family]);
 
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index e6e79eda9763..7de5b40a5d0d 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1070,7 +1070,8 @@ static struct sk_buff *dn_wait_for_connect(struct sock *sk, long *timeo)
 	return skb == NULL ? ERR_PTR(err) : skb;
 }
 
-static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
+static int dn_accept(struct socket *sock, struct socket *newsock, int flags,
+		     bool kern)
 {
 	struct sock *sk = sock->sk, *newsk;
 	struct sk_buff *skb = NULL;
@@ -1099,7 +1100,7 @@ static int dn_accept(struct socket *sock, struct socket *newsock, int flags)
 
 	cb = DN_SKB_CB(skb);
 	sk->sk_ack_backlog--;
-	newsk = dn_alloc_sock(sock_net(sk), newsock, sk->sk_allocation, 0);
+	newsk = dn_alloc_sock(sock_net(sk), newsock, sk->sk_allocation, kern);
 	if (newsk == NULL) {
 		release_sock(sk);
 		kfree_skb(skb);
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5091f46826fa..6b1fc6e4278e 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -689,11 +689,12 @@ EXPORT_SYMBOL(inet_stream_connect);
  *	Accept a pending connection. The TCP layer now gives BSD semantics.
  */
 
-int inet_accept(struct socket *sock, struct socket *newsock, int flags)
+int inet_accept(struct socket *sock, struct socket *newsock, int flags,
+		bool kern)
 {
 	struct sock *sk1 = sock->sk;
 	int err = -EINVAL;
-	struct sock *sk2 = sk1->sk_prot->accept(sk1, flags, &err);
+	struct sock *sk2 = sk1->sk_prot->accept(sk1, flags, &err, kern);
 
 	if (!sk2)
 		goto do_err;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index b4d5980ade3b..5e313c1ac94f 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -424,7 +424,7 @@ static int inet_csk_wait_for_connect(struct sock *sk, long timeo)
 /*
  * This will accept the next outstanding connection.
  */
-struct sock *inet_csk_accept(struct sock *sk, int flags, int *err)
+struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct request_sock_queue *queue = &icsk->icsk_accept_queue;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 81adc29a448d..8d77ad5cadaf 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -828,7 +828,8 @@ out:
  *    Wait for incoming connection
  *
  */
-static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
+static int irda_accept(struct socket *sock, struct socket *newsock, int flags,
+		       bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct irda_sock *new, *self = irda_sk(sk);
@@ -836,7 +837,7 @@ static int irda_accept(struct socket *sock, struct socket *newsock, int flags)
 	struct sk_buff *skb = NULL;
 	int err;
 
-	err = irda_create(sock_net(sk), newsock, sk->sk_protocol, 0);
+	err = irda_create(sock_net(sk), newsock, sk->sk_protocol, kern);
 	if (err)
 		return err;
 
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 89bbde1081ce..84de7b6326dc 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -938,7 +938,7 @@ done:
 
 /* Accept a pending connection */
 static int iucv_sock_accept(struct socket *sock, struct socket *newsock,
-			    int flags)
+			    int flags, bool kern)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	struct sock *sk = sock->sk, *nsk;
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 06186d608a27..cb4fff785cbf 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -641,11 +641,13 @@ static void llc_cmsg_rcv(struct msghdr *msg, struct sk_buff *skb)
  *	@sock: Socket which connections arrive on.
  *	@newsock: Socket to move incoming connection to.
  *	@flags: User specified operational flags.
+ *	@kern: If the socket is kernel internal
  *
  *	Accept a new incoming connection.
  *	Returns 0 upon success, negative otherwise.
  */
-static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags)
+static int llc_ui_accept(struct socket *sock, struct socket *newsock, int flags,
+			 bool kern)
 {
 	struct sock *sk = sock->sk, *newsk;
 	struct llc_sock *llc, *newllc;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 4bbf4526b885..ebf16f7f9089 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -765,7 +765,8 @@ out_release:
 	return err;
 }
 
-static int nr_accept(struct socket *sock, struct socket *newsock, int flags)
+static int nr_accept(struct socket *sock, struct socket *newsock, int flags,
+		     bool kern)
 {
 	struct sk_buff *skb;
 	struct sock *newsk;
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index 879885b31cce..2ffb18e73df6 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -441,7 +441,7 @@ struct sock *nfc_llcp_accept_dequeue(struct sock *parent,
 }
 
 static int llcp_sock_accept(struct socket *sock, struct socket *newsock,
-			    int flags)
+			    int flags, bool kern)
 {
 	DECLARE_WAITQUEUE(wait, current);
 	struct sock *sk = sock->sk, *new_sk;
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index 222bedcd9575..e81537991ddf 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -772,7 +772,8 @@ static void pep_sock_close(struct sock *sk, long timeout)
 	sock_put(sk);
 }
 
-static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp)
+static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp,
+				    bool kern)
 {
 	struct pep_sock *pn = pep_sk(sk), *newpn;
 	struct sock *newsk = NULL;
@@ -846,7 +847,8 @@ static struct sock *pep_sock_accept(struct sock *sk, int flags, int *errp)
 	}
 
 	/* Create a new to-be-accepted sock */
-	newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_KERNEL, sk->sk_prot, 0);
+	newsk = sk_alloc(sock_net(sk), PF_PHONET, GFP_KERNEL, sk->sk_prot,
+			 kern);
 	if (!newsk) {
 		pep_reject_conn(sk, skb, PN_PIPE_ERR_OVERLOAD, GFP_KERNEL);
 		err = -ENOBUFS;
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index a6c8da3ee893..64634e3ec2fc 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -305,7 +305,7 @@ out:
 }
 
 static int pn_socket_accept(struct socket *sock, struct socket *newsock,
-				int flags)
+			    int flags, bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct sock *newsk;
@@ -314,7 +314,7 @@ static int pn_socket_accept(struct socket *sock, struct socket *newsock,
 	if (unlikely(sk->sk_state != TCP_LISTEN))
 		return -EINVAL;
 
-	newsk = sk->sk_prot->accept(sk, flags, &err);
+	newsk = sk->sk_prot->accept(sk, flags, &err, kern);
 	if (!newsk)
 		return err;
 
diff --git a/net/rds/tcp_listen.c b/net/rds/tcp_listen.c
index 2c69a508a693..507678853e6c 100644
--- a/net/rds/tcp_listen.c
+++ b/net/rds/tcp_listen.c
@@ -133,7 +133,7 @@ int rds_tcp_accept_one(struct socket *sock)
 
 	new_sock->type = sock->type;
 	new_sock->ops = sock->ops;
-	ret = sock->ops->accept(sock, new_sock, O_NONBLOCK);
+	ret = sock->ops->accept(sock, new_sock, O_NONBLOCK, true);
 	if (ret < 0)
 		goto out;
 
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index b8a1df2c9785..4a9729257023 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -871,7 +871,8 @@ out_release:
 	return err;
 }
 
-static int rose_accept(struct socket *sock, struct socket *newsock, int flags)
+static int rose_accept(struct socket *sock, struct socket *newsock, int flags,
+		       bool kern)
 {
 	struct sk_buff *skb;
 	struct sock *newsk;
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 063baac5b9fe..961ee59f696a 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -640,14 +640,15 @@ static sctp_scope_t sctp_v6_scope(union sctp_addr *addr)
 
 /* Create and initialize a new sk for the socket to be returned by accept(). */
 static struct sock *sctp_v6_create_accept_sk(struct sock *sk,
-					     struct sctp_association *asoc)
+					     struct sctp_association *asoc,
+					     bool kern)
 {
 	struct sock *newsk;
 	struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
 	struct sctp6_sock *newsctp6sk;
 	struct ipv6_txoptions *opt;
 
-	newsk = sk_alloc(sock_net(sk), PF_INET6, GFP_KERNEL, sk->sk_prot, 0);
+	newsk = sk_alloc(sock_net(sk), PF_INET6, GFP_KERNEL, sk->sk_prot, kern);
 	if (!newsk)
 		goto out;
 
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 1b6d4574d2b0..989a900383b5 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -575,10 +575,11 @@ static int sctp_v4_is_ce(const struct sk_buff *skb)
 
 /* Create and initialize a new sk for the socket returned by accept(). */
 static struct sock *sctp_v4_create_accept_sk(struct sock *sk,
-					     struct sctp_association *asoc)
+					     struct sctp_association *asoc,
+					     bool kern)
 {
 	struct sock *newsk = sk_alloc(sock_net(sk), PF_INET, GFP_KERNEL,
-			sk->sk_prot, 0);
+			sk->sk_prot, kern);
 	struct inet_sock *newinet;
 
 	if (!newsk)
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 6f0a9be50f50..0f378ea2ae38 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -4116,7 +4116,7 @@ static int sctp_disconnect(struct sock *sk, int flags)
  * descriptor will be returned from accept() to represent the newly
  * formed association.
  */
-static struct sock *sctp_accept(struct sock *sk, int flags, int *err)
+static struct sock *sctp_accept(struct sock *sk, int flags, int *err, bool kern)
 {
 	struct sctp_sock *sp;
 	struct sctp_endpoint *ep;
@@ -4151,7 +4151,7 @@ static struct sock *sctp_accept(struct sock *sk, int flags, int *err)
 	 */
 	asoc = list_entry(ep->asocs.next, struct sctp_association, asocs);
 
-	newsk = sp->pf->create_accept_sk(sk, asoc);
+	newsk = sp->pf->create_accept_sk(sk, asoc, kern);
 	if (!newsk) {
 		error = -ENOMEM;
 		goto out;
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 85837ab90e89..093803786eac 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -944,7 +944,7 @@ out:
 }
 
 static int smc_accept(struct socket *sock, struct socket *new_sock,
-		      int flags)
+		      int flags, bool kern)
 {
 	struct sock *sk = sock->sk, *nsk;
 	DECLARE_WAITQUEUE(wait, current);
diff --git a/net/socket.c b/net/socket.c
index e0757e648c0c..e034fe4164be 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1506,7 +1506,7 @@ SYSCALL_DEFINE4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr,
 	if (err)
 		goto out_fd;
 
-	err = sock->ops->accept(sock, newsock, sock->file->f_flags);
+	err = sock->ops->accept(sock, newsock, sock->file->f_flags, false);
 	if (err < 0)
 		goto out_fd;
 
@@ -3239,7 +3239,7 @@ int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
 	if (err < 0)
 		goto done;
 
-	err = sock->ops->accept(sock, *newsock, flags);
+	err = sock->ops->accept(sock, *newsock, flags, true);
 	if (err < 0) {
 		sock_release(*newsock);
 		*newsock = NULL;
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 43e4045e72bc..7130e73bd42c 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -115,7 +115,8 @@ static void tipc_data_ready(struct sock *sk);
 static void tipc_write_space(struct sock *sk);
 static void tipc_sock_destruct(struct sock *sk);
 static int tipc_release(struct socket *sock);
-static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags);
+static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags,
+		       bool kern);
 static void tipc_sk_timeout(unsigned long data);
 static int tipc_sk_publish(struct tipc_sock *tsk, uint scope,
 			   struct tipc_name_seq const *seq);
@@ -2029,7 +2030,8 @@ static int tipc_wait_for_accept(struct socket *sock, long timeo)
  *
  * Returns 0 on success, errno otherwise
  */
-static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
+static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags,
+		       bool kern)
 {
 	struct sock *new_sk, *sk = sock->sk;
 	struct sk_buff *buf;
@@ -2051,7 +2053,7 @@ static int tipc_accept(struct socket *sock, struct socket *new_sock, int flags)
 
 	buf = skb_peek(&sk->sk_receive_queue);
 
-	res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, 0);
+	res = tipc_sk_create(sock_net(sock->sk), new_sock, 0, kern);
 	if (res)
 		goto exit;
 	security_sk_clone(sock->sk, new_sock->sk);
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index ee37b390260a..928691c43408 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -636,7 +636,7 @@ static int unix_bind(struct socket *, struct sockaddr *, int);
 static int unix_stream_connect(struct socket *, struct sockaddr *,
 			       int addr_len, int flags);
 static int unix_socketpair(struct socket *, struct socket *);
-static int unix_accept(struct socket *, struct socket *, int);
+static int unix_accept(struct socket *, struct socket *, int, bool);
 static int unix_getname(struct socket *, struct sockaddr *, int *, int);
 static unsigned int unix_poll(struct file *, struct socket *, poll_table *);
 static unsigned int unix_dgram_poll(struct file *, struct socket *,
@@ -1402,7 +1402,8 @@ static void unix_sock_inherit_flags(const struct socket *old,
 		set_bit(SOCK_PASSSEC, &new->flags);
 }
 
-static int unix_accept(struct socket *sock, struct socket *newsock, int flags)
+static int unix_accept(struct socket *sock, struct socket *newsock, int flags,
+		       bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct sock *tsk;
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 9192ead66751..9f770f33c100 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1250,7 +1250,8 @@ out:
 	return err;
 }
 
-static int vsock_accept(struct socket *sock, struct socket *newsock, int flags)
+static int vsock_accept(struct socket *sock, struct socket *newsock, int flags,
+			bool kern)
 {
 	struct sock *listener;
 	int err;
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index fd28a49dbe8f..8b911c29860e 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -852,7 +852,8 @@ static int x25_wait_for_data(struct sock *sk, long timeout)
 	return rc;
 }
 
-static int x25_accept(struct socket *sock, struct socket *newsock, int flags)
+static int x25_accept(struct socket *sock, struct socket *newsock, int flags,
+		      bool kern)
 {
 	struct sock *sk = sock->sk;
 	struct sock *newsk;
-- 
cgit v1.2.3