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File descriptors (even those for writing) do not hold freeze protection.
Thus mark_files_ro() must call __mnt_drop_write() to only drop protection
against remount read-only. Calling mnt_drop_write_file() as we do now
results in:
[ BUG: bad unlock balance detected! ]
3.7.0-rc6-00028-g88e75b6 #101 Not tainted
-------------------------------------
kworker/1:2/79 is trying to release lock (sb_writers) at:
[<ffffffff811b33b4>] mnt_drop_write+0x24/0x30
but there are no more locks to release!
Reported-by: Zdenek Kabelac <zkabelac@redhat.com>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The code that relied on that flag was ripped out of btrfs quite some
time ago, and never added back. Josef indicated that he was going to
take a different approach to the problem in btrfs, and that we
could just eliminate this flag.
Cc: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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When path_init is called with a valid dfd, that code checks permissions
on the open directory fd and returns an error if the check fails. This
permission check is redundant, however.
Both callers of path_init immediately call link_path_walk afterward. The
first thing that link_path_walk does for pathnames that do not consist
only of slashes is to check for exec permissions at the starting point of
the path walk. And this check in path_init() is on the path taken only
when *name != '/' && *name != '\0'.
In most cases, these checks are very quick, but when the dfd is for a
file on a NFS mount with the actimeo=0, each permission check goes
out onto the wire. The result is 2 identical ACCESS calls.
Given that these codepaths are fairly "hot", I think it makes sense to
eliminate the permission check in path_init and simply assume that the
caller will eventually check the permissions before proceeding.
Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The compiler may optimize the while loop and make the check just be done once,
so we should use ACCESS_ONCE() to guard access to ->mnt_flags
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"A few new features this merge-window. The most important one is
probably, that dma-debug now warns if a dma-handle is not checked with
dma_mapping_error by the device driver. This requires minor changes
to some architectures which make use of dma-debug. Most of these
changes have the respective Acks by the Arch-Maintainers.
Besides that there are updates to the AMD IOMMU driver for refactor
the IOMMU-Groups support and to make sure it does not trigger a
hardware erratum.
The OMAP changes (for which I pulled in a branch from Tony Lindgren's
tree) have a conflict in linux-next with the arm-soc tree. The
conflict is in the file arch/arm/mach-omap2/clock44xx_data.c which is
deleted in the arm-soc tree. It is safe to delete the file too so
solve the conflict. Similar changes are done in the arm-soc tree in
the common clock framework migration. A missing hunk from the patch
in the IOMMU tree will be submitted as a seperate patch when the
merge-window is closed."
* tag 'iommu-updates-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (29 commits)
ARM: dma-mapping: support debug_dma_mapping_error
ARM: OMAP4: hwmod data: ipu and dsp to use parent clocks instead of leaf clocks
iommu/omap: Adapt to runtime pm
iommu/omap: Migrate to hwmod framework
iommu/omap: Keep mmu enabled when requested
iommu/omap: Remove redundant clock handling on ISR
iommu/amd: Remove obsolete comment
iommu/amd: Don't use 512GB pages
iommu/tegra: smmu: Move bus_set_iommu after probe for multi arch
iommu/tegra: gart: Move bus_set_iommu after probe for multi arch
iommu/tegra: smmu: Remove unnecessary PTC/TLB flush all
tile: dma_debug: add debug_dma_mapping_error support
sh: dma_debug: add debug_dma_mapping_error support
powerpc: dma_debug: add debug_dma_mapping_error support
mips: dma_debug: add debug_dma_mapping_error support
microblaze: dma-mapping: support debug_dma_mapping_error
ia64: dma_debug: add debug_dma_mapping_error support
c6x: dma_debug: add debug_dma_mapping_error support
ARM64: dma_debug: add debug_dma_mapping_error support
intel-iommu: Prevent devices with RMRRs from being placed into SI Domain
...
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The dma_pte_free_pagetable() function will only free a page table page
if it is asked to free the *entire* 2MiB range that it covers. So if a
page table page was used for one or more small mappings, it's likely to
end up still present in the page tables... but with no valid PTEs.
This was fine when we'd only be repopulating it with 4KiB PTEs anyway
but the same virtual address range can end up being reused for a
*large-page* mapping. And in that case were were trying to insert the
large page into the second-level page table, and getting a complaint
from the sanity check in __domain_mapping() because there was already a
corresponding entry. This was *relatively* harmless; it led to a memory
leak of the old page table page, but no other ill-effects.
Fix it by calling dma_pte_clear_range (hopefully redundant) and
dma_pte_free_pagetable() before setting up the new large page.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Ravi Murty <Ravi.Murty@intel.com>
Tested-by: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: stable@kernel.org [3.0+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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prom_add_property() has been renamed to of_add_property()
This patch fixes the following comilation error:
arch/arm/mach-omap2/timer.c: In function ‘omap_get_timer_dt’:
arch/arm/mach-omap2/timer.c:178:3: error: implicit declaration of function ‘prom_add_property’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [arch/arm/mach-omap2/timer.o] Error 1
make[1]: *** Waiting for unfinished jobs....
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:
This is for fix the following build error in dev-audio.c on current Samsung
platforms :-(
arch/arm/mach-exynos/dev-audio.c:58:4: error: unknown field 'src_clk'
specified in initializer
arch/arm/mach-exynos/dev-audio.c:58:4: warning: initialization makes integer
from pointer without a cast [enabled by default]
arch/arm/mach-exynos/dev-audio.c:58:4: warning: (near initialization for
'i2sv5_pdata.type.i2s.idma_addr') [enabled by default]
arch/arm/mach-exynos/dev-audio.c:91:4: error: unknown field 'src_clk'
specified in initializer
arch/arm/mach-exynos/dev-audio.c:91:4: warning: initialization makes integer
from pointer without a cast [enabled by default]
arch/arm/mach-exynos/dev-audio.c:91:4: warning: (near initialization for
'i2sv3_pdata.type.i2s.idma_addr') [enabled by default]
* 'v3.8-samsung-fixes-audio' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Avoid passing the clks through platform data
ARM: S5PV210: Avoid passing the clks through platform data
ARM: S5P64X0: Add I2S clkdev support
ARM: S5PC100: Add I2S clkdev support
ARM: S3C64XX: Add I2S clkdev support
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:
Here is Samsung fixes-1 for v3.8-rc1.
Most of them are trivial fixes which are for NULL pointer dereference, MSHC
clocks instance names and exynos5440 stuff.
* 'v3.8-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Fix MSHC clocks instance names
ARM: EXYNOS: Fix NULL pointer dereference bug in SMDKV310
ARM: EXYNOS: Fix NULL pointer dereference bug in SMDK4X12
ARM: EXYNOS: Fix NULL pointer dereference bug in Origen
ARM: SAMSUNG: Add missing include guard to gpio-core.h
pinctrl: exynos5440/samsung: Staticize pcfgs
pinctrl: samsung: Fix a typo in pinctrl-samsung.h
ARM: EXYNOS: fix skip scu_enable() for EXYNOS5440
ARM: EXYNOS: fix GIC using for EXYNOS5440
ARM: EXYNOS: fix build error when MFC is not selected
Signed-off-by: Olof Johansson <olof@lixom.net>
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This is the rename portion of "ARM: sunxi: Change device tree naming
scheme for sunxi" that were missed when the patch was applied.
Signed-off-by: Olof Johansson <olof@lixom.net>
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It's always set to "1" and there's no way to change it to anything else.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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numbers are in use
Oliver reported that commit cd60042c caused his cifs mounts to
continually thrash through new inodes on readdir. His servers are not
sending inode numbers (or he's not using them), and the new test in
that function doesn't account for that sort of setup correctly.
If we're not using server inode numbers, then assume that the inode
attached to the dentry hasn't changed. Go ahead and update the
attributes in place, but keep the same inode number.
Cc: <stable@vger.kernel.org> # v3.5+
Reported-and-Tested-by: Oliver Mössinger <Oliver.Moessinger@ichaus.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Dan reported the following regression in commit d387a5c5:
+ fs/cifs/connect.c:1903 cifs_parse_mount_options() error: double free of 'string'
That patch has some of the new option parsing code free "string" without
setting the variable to NULL afterward. Since "string" is automatically
freed in an error condition, fix the code to just rely on that instead
of freeing it explicitly.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
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The functions rbd_get_dev() and rbd_put_dev() are trivial wrappers
that add no value, and their existence suggests they may do more
than what they do.
Get rid of them.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Dan Mick <dan.mick@inktank.com>
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In kick_requests(), we need to register the request before we
unregister the linger request. Otherwise the unregister will
reset the request's osd pointer to NULL.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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The red-black node in the ceph osd request structure is initialized
in ceph_osdc_alloc_request() using rbd_init_node(). We do need to
initialize this, because in __unregister_request() we call
RB_EMPTY_NODE(), which expects the node it's checking to have
been initialized. But rb_init_node() is apparently overkill, and
may in fact be on its way out. So use RB_CLEAR_NODE() instead.
For a little more background, see this commit:
4c199a93 rbtree: empty nodes have no color"
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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The red-black node node in the ceph osd event structure is not
initialized in create_osdc_create_event(). Because this node can
be the subject of a RB_EMPTY_NODE() call later on, we should ensure
the node is initialized properly for that.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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The red-black node node in the ceph osd structure is not initialized
in create_osd(). Because this node can be the subject of a
RB_EMPTY_NODE() call later on, we should ensure the node is
initialized properly for that. Add a call to RB_CLEAR_NODE()
initialize it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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When a connection's socket disconnects, or if there's a protocol
error of some kind on the connection, a fault is signaled and
the connection is reset (closed and reopened, basically). We
currently get an error message on the log whenever this occurs.
A ceph connection will attempt to reestablish a socket connection
repeatedly if a fault occurs. This means that these error messages
will get repeatedly added to the log, which is undesirable.
Change the error message to be a warning, so they don't get
logged by default.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
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Merge commit 752451f01c45 ("Merge branch 'i2c-embedded/for-next' of
git://git.pengutronix.de/git/wsa/linux") resulted in a build breakage
for OMAP
arch/arm/mach-omap2/i2c.c: In function 'omap_pm_set_max_mpu_wakeup_lat_compat':
arch/arm/mach-omap2/i2c.c:130:2: error: implicit declaration of function 'omap_pm_set_max_mpu_wakeup_lat'
make[1]: *** [arch/arm/mach-omap2/i2c.o] Error 1
Fix this by including the appropriate header file with the function
prototype.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Vaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio update from Rusty Russell:
"Some nice cleanups, and even a patch my wife did as a "live" demo for
Latinoware 2012.
There's a slightly non-trivial merge in virtio-net, as we cleaned up
the virtio add_buf interface while DaveM accepted the mq virtio-net
patches."
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits)
virtio_console: Add support for remoteproc serial
virtio_console: Merge struct buffer_token into struct port_buffer
virtio: add drv_to_virtio to make code clearly
virtio: use dev_to_virtio wrapper in virtio
virtio-mmio: Fix irq parsing in command line parameter
virtio_console: Free buffers from out-queue upon close
virtio: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
virtio_console: Use kmalloc instead of kzalloc
virtio_console: Free buffer if splice fails
virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: make virtqueue_add_buf() returning 0 on success, not capacity.
virtio: console: don't rely on virtqueue_add_buf() returning capacity.
virtio_net: don't rely on virtqueue_add_buf() returning capacity.
virtio-net: remove unused skb_vnet_hdr->num_sg field
virtio-net: correct capacity math on ring full
virtio: move queue_index and num_free fields into core struct virtqueue.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This update contains overall only driver-specific fixes. Slightly
large LOC are seen in usb-audio driver for a couple of new device
quirks and cs42l71 ASoC driver for enhanced features. The others are
a few small (regression) fixes HD-audio, and yet other small / trival
ASoC fixes."
* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: Support for Digidesign Mbox 2 USB sound card:
ALSA: HDA: Fix sound resume hang
ALSA: hda - bug fix for invalid connection list of Haswell HDMI codec pins
ALSA: hda - Fix the wrong pincaps set in ALC861VD dallas/hp fixup
ALSA: hda - Set codec->single_adc_amp flag for Realtek codecs
ASoC: atmel-ssc: change disable to disable in dts node
ASoC: Prevent pop_wait overwrite
ALSA: usb-audio: ignore-quirk for HP Wireless Audio
ALSA: hda - Always turn on pins for HDMI/DP
ALSA: hda - Fix pin configuration of HP Pavilion dv7
ASoC: core: Fix splitting of log messages
ASoC: cs42l73: Change VSPIN/VSPOUT to VSPINOUT
ASoC: cs42l73: Add DAPM events for power down.
ASoC: cs42l73: Add DMIC's as DAPM inputs.
ASoC: sigmadsp: Fix endianness conversion issue
ASoC: tpa6130a2: Use devm_* APIs
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Pull UBI update from Artem Bityutskiy:
"Nothing exciting, just clean-ups and nicification. Oh, and one small
optimization which makes UBI to use less RAM."
* tag 'upstream-3.8-rc1' of git://git.infradead.org/linux-ubi:
UBI: embed ubi_debug_info field in ubi_device struct
UBI: introduce helpers dbg_chk_{io, gen}
UBI: replace memcpy with struct assignment
UBI: remove spurious comment
UBI: gluebi: rename misleading variables
UBI: do not allocate the memory unnecessarily
UBI: use list_move_tail instead of list_del/list_add_tail
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'disintegrate-score-20121220' of git://git.infradead.org/users/dhowells/linux-headers
Pull UAPI disintegration for H8/300, M32R and Score from David Howells.
Scripted UAPI patches for architectures that apparently never reacted to
it on their own.
* tag 'disintegrate-h8300-20121219' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/h8300/include/asm
* tag 'disintegrate-m32r-20121219' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/m32r/include/asm
* tag 'disintegrate-score-20121220' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/score/include/asm
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Pull CRIS changes from Jesper Nilsson.
... mainly the UAPI disintegration.
* tag 'cris-for-linus-3.8' of git://jni.nu/cris:
UAPI: Fix up empty files in arch/cris/
CRIS: locking: fix the return value of arch_read_trylock()
CRIS: use kbuild.h instead of defining macros in asm-offset.c
UAPI: (Scripted) Disintegrate arch/cris/include/asm
UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch
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Pull ARM SoC fixes from Olof Johansson:
"This is a batch of fixes for arm-soc platforms, most of it is for OMAP
but there are others too (i.MX, Tegra, ep93xx). Fixes warnings, some
broken platforms and drivers, etc. A bit all over the map really."
There was some concern about commit 68136b10 ("RM: sunxi: Change device
tree naming scheme for sunxi"), but Tony says:
"Looks like that's trivial to fix as needed, no need to rebuild the
branch to fix that AFAIK.
The fix can be done once Olof is available online again.
Linus, I suggest that you go ahead and pull this if there are no other
issues with this branch."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
ARM: sunxi: Change device tree naming scheme for sunxi
ARM: ux500: fix missing include
ARM: u300: delete custom pin hog code
ARM: davinci: fix build break due to missing include
ARM: exynos: Fix warning due to missing 'inline' in stub
ARM: imx: Move platform-mx2-emma to arch/arm/mach-imx/devices
ARM i.MX51 clock: Fix regression since enabling MIPI/HSP clocks
ARM: dts: mx27: Fix the AIPI bus for FEC
ARM: OMAP2+: common: remove use of vram
ARM: OMAP3/4: cpuidle: fix sparse and checkpatch warnings
ARM: OMAP4: clock data: DPLLs are missing bypass clocks in their parent lists
ARM: OMAP4: clock data: div_iva_hs_clk is a power-of-two divider
ARM: OMAP4: Fix EMU clock domain always on
ARM: OMAP4460: Workaround ABE DPLL failing to turn-on
ARM: OMAP4: Enhance support for DPLLs with 4X multiplier
ARM: OMAP4: Add function table for non-M4X dplls
ARM: OMAP4: Update timer clock aliases
ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.h
ARM: dts: Add build target for omap4-panda-a4
ARM: dts: OMAP2420: Correct H4 board memory size
...
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git://git.linaro.org/people/sumitsemwal/linux-dma-buf
Pull dma-buf updates from Sumit Semwal:
"A fairly small dma-buf pull request for 3.8 - only 2 patches"
* tag 'tag-for-linus-3.8' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf:
dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
dma-buf: might_sleep() in dma_buf_unmap_attachment()
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon subsystem update from Jean Delvare:
"There are many improvements to the it87 driver, as well as suspend
support for the Winbond Super-I/O chips, and a few other fixes."
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon-vid: Add support for AMD family 11h to 15h processors
hwmon: (it87) Support PECI for additional chips
hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate
hwmon: (it87) Manage device specific features with table
hwmon: (it87) Replace pwm group macro with direct attribute definitions
hwmon: (it87) Avoid quoted string splits across lines
hwmon: (it87) Save fan registers in 2-dimensional array
hwmon: (it87) Introduce support for tempX_offset sysfs attribute
hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions
hwmon: (it87) Save voltage register values in 2-dimensional array
hwmon: (it87) Save temperature registers in 2-dimensional array
hwmon: (w83627ehf) Get rid of smatch warnings
hwmon: (w83627hf) Don't touch nonexistent I2C address registers
hwmon: (w83627ehf) Add support for suspend
hwmon: (w83627hf) Add support for suspend
hwmon: Fix PCI device reference leak in quirk
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The rmap walks in ksm.c are like those in rmap.c: they can safely be
done with anon_vma_lock_read().
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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task_numa_placement() oopsed on NULL p->mm when task_numa_fault() got
called in the handling of break_ksm() for ksmd. That might be a
peculiar case, which perhaps KSM could takes steps to avoid? but it's
more robust if task_numa_placement() allows for such a possibility.
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On a 4GB RAM machine, where Normal zone is much smaller than DMA32 zone,
the Normal zone gets fragmented in time. This requires relatively more
pressure in balance_pgdat to get the zone above the required watermark.
Unfortunately, the congestion_wait() call in there slows it down for a
completely wrong reason, expecting that there's a lot of
writeback/swapout, even when there's none (much more common). After a
few days, when fragmentation progresses, this flawed logic translates to
a very high CPU iowait times, even though there's no I/O congestion at
all. If THP is enabled, the problem occurs sooner, but I was able to
see it even on !THP kernels, just by giving it a bit more time to occur.
The proper way to deal with this is to not wait, unless there's
congestion. Thanks to Mel Gorman, we already have the function that
perfectly fits the job. The patch was tested on a machine which nicely
revealed the problem after only 1 day of uptime, and it's been working
great.
Signed-off-by: Zlatko Calusic <zlatko.calusic@iskon.hr>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix up three empty files in arch/cris/ by sticking placeholder comments in
there to prevent the patch program from deleting them.
I decided not to delete the arch-v*/Kbuild files as it's possibly someone might
want to use them for genhdr-y lines in the future, but they could be deleted
and the pointer lines removed from asm/Kbuild. The uapi/arch-v*/Kbuild files
ought to be uneffected by such a change.
asm/swab.h didn't have anything outside of __KERNEL__ so nothing appeared in
uapi/asm/swab.h. The latter, however, is exported by Kbuild.asm.
This needs to be applied after the CRIS UAPI disintegration patch.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
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arch_write_trylock() should return 'ret' instead of always
return 1.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
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git://git.infradead.org/users/dhowells/linux-headers into for-linus2
UAPI Disintegration 2012-10-09
* tag 'disintegrate-cris-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/cris/include/asm
UAPI: (Scripted) Disintegrate arch/cris/include/arch-v32/arch
UAPI: (Scripted) Disintegrate arch/cris/include/arch-v10/arch
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This is modelled on commits such as the one below:
Commit fc1c3a003edb8a6778e64e10ef671a38c76c969e ("sh: use kbuild.h
instead of defining macros in asm-offsets.c") introduced in v2.6.26.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
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Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Acked-by: Liqin Chen <liqin299@gmail.com>
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Commit 34ae6c96a6a7 ("ARM: 7298/1: realview: fix mapping of MPCore
private memory region") accidentally broke the definition for the base
address of the private peripheral region on revision B Realview-EB
boards.
This patch uses the correct address for REALVIEW_EB11MP_PRIV_MEM_BASE.
Cc: <stable@vger.kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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flush_cache_louis flushes the D-side caches to the point of unification
inner-shareable. On uniprocessor CPUs, this is defined as zero and
therefore no flushing will take place. Rather than invent a new interface
for UP systems, instead use our SMP_ON_UP patching code to read the
LoUU from the CLIDR instead.
Cc: <stable@vger.kernel.org>
Cc: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>
Tested-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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find_vma() is *not* safe when somebody else is removing vmas. Not just
the return value might get bogus just as you are getting it (this instance
doesn't try to dereference the resulting vma), the search itself can get
buggered in rather spectacular ways. IOW, ->mmap_sem really, really is
not optional here.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Retries active opens for INUSE errors.
Logs any active ofld_connect_wr error replies.
Sends ofld_connect_wr on same ctrlq. It needs to go on the same control txq as
regular CPL active/passive messages.
Retries on active open replies with EADDRINUSE.
Uses active open fw wr only if active filter region is set.
Adds stat for ofld_connect_wr failures.
This patch also adds debugfs file to show endpoints.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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It establishes passive open connection through firmware work request. Passive
open connection will go through this path as now instead of listening server we
create a server filter which will redirect the incoming SYN packet to the
offload queue. After this driver tries to establish the connection using
firmware work request.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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It enables establishing active open connection using fw_ofld_connection work
request when cpl_act_open_rpl says TCAM full error which may be because
of LE hash collision. Current support is only for IPv4 active open connections.
Sets ntuple bits in active open requests. For T4 firmware greater than 1.4.10.0
ntuple bits are required to be set.
Adds nocong and enable_ecn module parameter options.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
[ Move all FW return values to t4fw_api.h. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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Documentation says that code requiring dma-buf should add it to
select, so inline fallbacks are not going to be used. A link error
will make it obvious what went wrong, instead of silently doing
nothing at runtime.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Rob Clark <rob.clark@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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We never really clarified if unmap could be done in atomic context.
But since mapping might require sleeping, this implies mutex in use
to synchronize mapping/unmapping, so unmap could sleep as well. Add
a might_sleep() to clarify this.
Signed-off-by: Rob Clark <rob@ti.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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Pull sparc fixes from David Miller:
"Please pull to get these sparc AES/DES/CAMELLIA crypto bug fixes as
well as an addition of a pte_accessible() define for sparc64 and a
hugetlb fix from Dave Kleikamp."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in CAMELLIA code.
sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in DES code.
sparc64: Fix ECB looping constructs in AES code.
sparc64: Set CRYPTO_TFM_REQ_MAY_SLEEP consistently in AES code.
sparc64: Fix AES ctr mode block size.
sparc64: Fix unrolled AES 256-bit key loops.
sparc64: Define pte_accessible()
sparc: huge_ptep_set_* functions need to call set_huge_pte_at()
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Pull networking fixes from David Miller:
1) Really fix tuntap SKB use after free bug, from Eric Dumazet.
2) Adjust SKB data pointer to point past the transport header before
calling icmpv6_notify() so that the headers are in the state which
that function expects. From Duan Jiong.
3) Fix ambiguities in the new tuntap multi-queue APIs. From Jason
Wang.
4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov.
5) Don't destroy mutex after freeing up device private in mac802154,
fix also from Konstantin Khlebnikov.
6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch.
7) SCTP HMAC kconfig rework, from Neil Horman.
8) Fix SCTP jprobes function signature, otherwise things explode, from
Daniel Borkmann.
9) Fix typo in ipv6-offload Makefile variable reference, from Simon
Arlott.
10) Don't fail USBNET open just because remote wakeup isn't supported,
from Oliver Neukum.
11) be2net driver bug fixes from Sathya Perla.
12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David
Woodhouse.
13) Fix MTU changing regression in 8139cp driver, from John Greene.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
solos-pci: ensure all TX packets are aligned to 4 bytes
solos-pci: add firmware upgrade support for new models
solos-pci: remove superfluous debug output
solos-pci: add GPIO support for newer versions on Geos board
8139cp: Prevent dev_close/cp_interrupt race on MTU change
net: qmi_wwan: add ZTE MF880
drivers/net: Use of_match_ptr() macro in smsc911x.c
drivers/net: Use of_match_ptr() macro in smc91x.c
ipv6: addrconf.c: remove unnecessary "if"
bridge: Correctly encode addresses when dumping mdb entries
bridge: Do not unregister all PF_BRIDGE rtnl operations
use generic usbnet_manage_power()
usbnet: generic manage_power()
usbnet: handle PM failure gracefully
ksz884x: fix receive polling race condition
qlcnic: update driver version
qlcnic: fix unused variable warnings
net: fec: forbid FEC_PTP on SoCs that do not support
be2net: fix wrong frag_idx reported by RX CQ
be2net: fix be_close() to ensure all events are ack'ed
...
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git://git.secretlab.ca/git/linux-2.6
Pull devicetree, gpio and spi bugfixes from Grant Likely:
"Device tree v3.8 bug fix:
- Fixes an undefined struct device build error and a missing symbol
export.
GPIO device driver bug fixes:
- gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
- gpio/ich: Add missing spinlock init
SPI device driver bug fixes:
- Most of this is bug fixes to the core code and the sh-hspi and
s3c64xx device drivers.
- There is also a patch here to add DT support to the Atmel driver.
This one should have been in the first round, but I missed it.
It's a low risk change contained within a single driver and the
Atmel maintainer has requested it."
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
of: Fix export of of_find_matching_node_and_match()
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
gpio/ich: Add missing spinlock init
* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
spi/sh-hspi: fix return value check in hspi_probe().
spi: fix tegra SPI binding examples
spi/atmel: add DT support
of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes.
spi: Change FIFO flush operation and spi channel off
spi: Keep chipselect assertion during one message
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Pull drm bugfix from Dave Airlie:
"Just a single urgent regression fix, seeing a few wierd behaviours I'd
like not to persist."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
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