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According to the document [1], it can also have 'hs', 'lo', 'vc', 'vs' as a
condition code. Let's add them too.
[1] https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/condition-codes-1-condition-flags-and-codes
Reported-by: Kevin Nomura <nomurak@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20221006222232.266416-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Its just for that __packed define, so use it expanded as __attribute__((packed)),
like the other files in /usr/include do.
This was problem was preventing building the libperf examples on ALT
Linux and Fedora 35, fix it.
Reported-by: Vitaly Chikunov <vt@altlinux.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dmitry Levin <ldv@altlinux.org
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/Y0lnpl2Ix7VljVDc@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This test commonly fails on Arm Juno because the instruction interval
is large enough to miss generating any samples for Perf in system-wide
mode.
Fix this by lowering the interval until a comfortable number of Perf
instructions are generated. The test is still quick to run because only
a small amount of trace is gathered.
Before:
sudo ./perf test coresight -vvv
...
Recording trace with system wide mode
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
CoreSight system wide testing: FAIL
...
After:
sudo ./perf test coresight -vvv
...
Recording trace with system wide mode
Looking at perf.data file for dumping branch samples:
Looking at perf.data file for reporting branch samples:
Looking at perf.data file for instruction samples:
CoreSight system wide testing: PASS
...
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20221005140508.1537277-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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The recent change in the cgroup will break the backward compatiblity in
the BPF program. It should support both old and new kernels using BPF
CO-RE technique.
Like the task_struct->__state handling in the offcpu analysis, we can
check the field name in the cgroup struct.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: bpf@vger.kernel.org
Cc: cgroups@vger.kernel.org
Cc: zefan li <lizefan.x@bytedance.com>
Link: http://lore.kernel.org/lkml/20221011052808.282394-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Pull more drm updates from Dave Airlie:
"Round of fixes for the merge window stuff, bunch of amdgpu and i915
changes, this should have the gcc11 warning fix, amongst other
changes.
amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups
i915:
- Round to closest in g4x+ HDMI clock readout
- Update MOCS table for EHL
- Fix PSR_IMR/IIR field handling
- Fix watermark calculations for gen12+/DG2 modifiers
- Reject excessive dotclocks early
- Fix revocation of non-persistent contexts
- Handle migration for dpt
- Fix display problems after resume
- Allow control over the flags when migrating
- Consider DG2_RC_CCS_CC when migrating buffers"
* tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm: (110 commits)
drm/amd/display: Add HUBP surface flip interrupt handler
drm/i915/display: consider DG2_RC_CCS_CC when migrating buffers
drm/i915: allow control over the flags when migrating
drm/amd/display: Simplify bool conversion
drm/amd/display: fix transfer function passed to build_coefficients()
drm/amd/display: add a license to cursor_reg_cache.h
drm/amd/display: make virtual_disable_link_output static
drm/amd/display: fix indentation in dc.c
drm/amd/display: make dcn32_split_stream_for_mpc_or_odm static
drm/amd/display: fix build error on arm64
drm/amd/display: 3.2.207
drm/amd/display: Clean some DCN32 macros
drm/amdgpu: Add poison mode query for umc v8_10_0
drm/amdgpu: Update umc v8_10_0 headers
drm/amdgpu: fix coding style issue for mca notifier
drm/amdgpu: define convert_error_address for umc v8.7
drm/amdgpu: define RAS convert_error_address API
drm/amdgpu: remove check for CE in RAS error address query
drm/i915: Fix display problems after resume
drm/amd/display: fix array-bounds error in dc_stream_remove_writeback() [take 2]
...
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Pull more block updates from Jens Axboe:
"Fixes that ended up landing later than the initial block pull request.
Nothing really major in here:
- NVMe pull request via Christoph:
- add NVME_QUIRK_BOGUS_NID for Lexar NM760 (Abhijit)
- add NVME_QUIRK_NO_DEEPEST_PS to avoid the deepest sleep state
on ZHITAI TiPro5000 SSDs (Xi Ruoyao)
- fix possible hang caused during ctrl deletion (Sagi Grimberg)
- fix possible hang in live ns resize with ANA access (Sagi
Grimberg)
- Proactively avoid a sign extension issue with the queue flags
(Brian)
- Regression fix for hidden disks (Christoph)
- Update OPAL maintainers entry (Jonathan)
- blk-wbt regression initialization fix (Yu)"
* tag 'block-6.1-2022-10-13' of git://git.kernel.dk/linux:
nvme-multipath: fix possible hang in live ns resize with ANA access
nvme-pci: avoid the deepest sleep state on ZHITAI TiPro5000 SSDs
nvme-pci: add NVME_QUIRK_BOGUS_NID for Lexar NM760
nvme-tcp: fix possible hang caused during ctrl deletion
nvme-rdma: fix possible hang caused during ctrl deletion
block: fix leaking minors of hidden disks
block: avoid sign extend problem with default queue flags mask
blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
block: Remove the repeat word 'can'
MAINTAINERS: Update SED-Opal Maintainers
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Pull more io_uring updates from Jens Axboe:
"A collection of fixes that ended up either being later than the
initial pull, or dependent on multiple branches (6.0-late being one of
them) and hence deferred purposely. This contains:
- Cleanup fixes for the single submitter late 6.0 change, which we
pushed to 6.1 to keep the 6.0 changes small (Dylan, Pavel)
- Fix for IORING_OP_CONNECT not handling -EINPROGRESS correctly (me)
- Ensure that the zc sendmsg variant gets audited correctly (me)
- Regression fix from this merge window where kiocb_end_write()
doesn't always gets called, which can cause issues with fs freezing
(me)
- Registered files SCM handling fix (Pavel)
- Regression fix for big sqe dumping in fdinfo (Pavel)
- Registered buffers accounting fix (Pavel)
- Remove leftover notification structures, we killed them off late in
6.0 (Pavel)
- Minor optimizations (Pavel)
- Cosmetic variable shadowing fix (Stefan)"
* tag 'io_uring-6.1-2022-10-13' of git://git.kernel.dk/linux:
io_uring/rw: ensure kiocb_end_write() is always called
io_uring: fix fdinfo sqe offsets calculation
io_uring: local variable rw shadows outer variable in io_write
io_uring/opdef: remove 'audit_skip' from SENDMSG_ZC
io_uring: optimise locking for local tw with submit_wait
io_uring: remove redundant memory barrier in io_req_local_work_add
io_uring/net: handle -EINPROGRESS correct for IORING_OP_CONNECT
io_uring: remove notif leftovers
io_uring: correct pinned_vm accounting
io_uring/af_unix: defer registered files gc to io_uring release
io_uring: limit registration w/ SINGLE_ISSUER
io_uring: remove io_register_submitter
io_uring: simplify __io_uring_add_tctx_node
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https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-fixes-6.1-2022-10-12:
amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221012162650.8810-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Fix revocation of non-persistent contexts (Tvrtko Ursulin)
- Handle migration for dpt (Matthew Auld)
- Fix display problems after resume (Thomas Hellström)
- Allow control over the flags when migrating (Matthew Auld)
- Consider DG2_RC_CCS_CC when migrating buffers (Matthew Auld)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y0gK9QmCmktLLzqp@tursulin-desk
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fixes for Mediatek MT6370 binding
- Merge the DT overlay maintainer entry to the main entry as Pantelis
is not active and Frank is taking a step back
* tag 'devicetree-fixes-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
MAINTAINERS: of: collapse overlay entry into main device tree entry
dt-bindings: mfd: mt6370: fix the interrupt order of the charger in the example
dt-bindings: leds: mt6370: Fix MT6370 LED indicator DT warning
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Pull MMC fixes from Ulf Hansson:
"MMC core:
- Add SD card quirk for broken discard
MMC host:
- renesas_sdhi: Fix clock rounding errors
- sdhci-sprd: Fix minimum clock limit to detect cards
- sdhci-tegra: Use actual clock rate for SW tuning correction"
* tag 'mmc-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-sprd: Fix minimum clock limit
mmc: sdhci-tegra: Use actual clock rate for SW tuning correction
mmc: renesas_sdhi: Fix rounding errors
mmc: core: Add SD card quirk for broken discard
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Pull documentation fixes from Jonathan Corbet:
"A handful of relatively simple documentation fixes, plus a set of
patches catching the Chinese translation up with the front-page
rework"
* tag 'docs-6.1-2' of git://git.lwn.net/linux:
Documentation: rtla: Correct command line example
docs/zh_CN: add a man-pages link to zh_CN/index.rst
docs/zh_CN: Rewrite the Chinese translation front page
docs/zh_CN: add zh_CN/arch.rst
docs/zh_CN: promote the title of zh_CN/process/index.rst
docs/zh_CN: Update the translation of page_owner to 6.0-rc7
docs/zh_CN: Update the translation of ksm to 6.0-rc7
docs/howto: Replace abundoned URL of gmane.org
Documentation: ubifs: Fix compression idiom
Documentation/mm/page_owner.rst: delete frequently changing experimental data
docs/zh_CN: Fix build warning
docs: ftrace: Correct access mode
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter, and wifi.
Current release - regressions:
- Revert "net/sched: taprio: make qdisc_leaf() see the
per-netdev-queue pfifo child qdiscs", it may cause crashes when the
qdisc is reconfigured
- inet: ping: fix splat due to packet allocation refactoring in inet
- tcp: clean up kernel listener's reqsk in inet_twsk_purge(), fix UAF
due to races when per-netns hash table is used
Current release - new code bugs:
- eth: adin1110: check in netdev_event that netdev belongs to driver
- fixes for PTR_ERR() vs NULL bugs in driver code, from Dan and co.
Previous releases - regressions:
- ipv4: handle attempt to delete multipath route when fib_info
contains an nh reference, avoid oob access
- wifi: fix handful of bugs in the new Multi-BSSID code
- wifi: mt76: fix rate reporting / throughput regression on mt7915
and newer, fix checksum offload
- wifi: iwlwifi: mvm: fix double list_add at
iwl_mvm_mac_wake_tx_queue (other cases)
- wifi: mac80211: do not drop packets smaller than the LLC-SNAP
header on fast-rx
Previous releases - always broken:
- ieee802154: don't warn zero-sized raw_sendmsg()
- ipv6: ping: fix wrong checksum for large frames
- mctp: prevent double key removal and unref
- tcp/udp: fix memory leaks and races around IPV6_ADDRFORM
- hv_netvsc: fix race between VF offering and VF association message
Misc:
- remove -Warray-bounds silencing in the drivers, compilers fixed"
* tag 'net-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
sunhme: fix an IS_ERR() vs NULL check in probe
net: marvell: prestera: fix a couple NULL vs IS_ERR() checks
kcm: avoid potential race in kcm_tx_work
tcp: Clean up kernel listener's reqsk in inet_twsk_purge()
net: phy: micrel: Fixes FIELD_GET assertion
openvswitch: add nf_ct_is_confirmed check before assigning the helper
tcp: Fix data races around icsk->icsk_af_ops.
ipv6: Fix data races around sk->sk_prot.
tcp/udp: Call inet6_destroy_sock() in IPv6 sk->sk_destruct().
udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM).
tcp/udp: Fix memory leak in ipv6_renew_options().
mctp: prevent double key removal and unref
selftests: netfilter: Fix nft_fib.sh for all.rp_filter=1
netfilter: rpfilter/fib: Populate flowic_l3mdev field
selftests: netfilter: Test reverse path filtering
net/mlx5: Make ASO poll CQ usable in atomic context
tcp: cdg: allow tcp_cdg_release() to be called multiple times
inet: ping: fix recent breakage
ipv6: ping: fix wrong checksum for large frames
net: ethernet: ti: am65-cpsw: set correct devlink flavour for unused ports
...
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Pull virtio fixes from Michael Tsirkin:
- Fix a regression in virtio pci on power
- Add a reviewer for ifcvf
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vdpa/ifcvf: add reviewer
virtio_pci: use irq to detect interrupt support
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Found that the synthetic events were using strlen/strscpy() on values
that could have come from userspace, and that is bad.
Consolidate the string logic of kprobe and eprobe and extend it to
the synthetic events to safely process string addresses.
- Clean up content of text dump in ftrace_bug() where the output does
not make char reads into signed and sign extending the byte output.
- Fix some kernel docs in the ring buffer code.
* tag 'trace-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix reading strings from synthetic events
tracing: Add "(fault)" name injection to kernel probes
tracing: Move duplicate code of trace_kprobe/eprobe.c into header
ring-buffer: Fix kernel-doc
ftrace: Fix char print issue in print_ip_ins()
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git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- new driver for Exar/MaxLinear XR28V38x
- support for exynosautov9 SoC
- support for Renesas R-Car V5H (R8A779G0) and RZ/V2M (r9a09g011) SoC
- support for imx93
- several other fixes and improvements
* tag 'linux-watchdog-6.1-rc1' of git://www.linux-watchdog.org/linux-watchdog: (36 commits)
watchdog: twl4030_wdt: add missing mod_devicetable.h include
dt-bindings: watchdog: migrate mt7621 text bindings to YAML
watchdog: sp5100_tco: Add "action" module parameter
watchdog: imx93: add watchdog timer on imx93
watchdog: imx7ulp_wdt: init wdog when it was active
watchdog: imx7ulp_wdt: Handle wdog reconfigure failure
watchdog: imx7ulp_wdt: Fix RCS timeout issue
watchdog: imx7ulp_wdt: Check CMD32EN in wdog init
watchdog: imx7ulp: Add explict memory barrier for unlock sequence
watchdog: imx7ulp: Move suspend/resume to noirq phase
watchdog: rti-wdt:using the pm_runtime_resume_and_get to simplify the code
dt-bindings: watchdog: rockchip: add rockchip,rk3128-wdt
watchdog: s3c2410_wdt: support exynosautov9 watchdog
dt-bindings: watchdog: add exynosautov9 compatible
watchdog: npcm: Enable clock if provided
watchdog: meson: keep running if already active
watchdog: dt-bindings: atmel,at91sam9-wdt: convert to json-schema
watchdog: armada_37xx_wdt: Fix .set_timeout callback
watchdog: sa1100: make variable sa1100dog_driver static
watchdog: w83977f_wdt: Fix comment typo
...
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Pull ceph updates from Ilya Dryomov:
"A quiet round this time: several assorted filesystem fixes, the most
noteworthy one being some additional wakeups in cap handling code, and
a messenger cleanup"
* tag 'ceph-for-6.1-rc1' of https://github.com/ceph/ceph-client:
ceph: remove Sage's git tree from documentation
ceph: fix incorrectly showing the .snap size for stat
ceph: fail the open_by_handle_at() if the dentry is being unlinked
ceph: increment i_version when doing a setattr with caps
ceph: Use kcalloc for allocating multiple elements
ceph: no need to wait for transition RDCACHE|RD -> RD
ceph: fail the request if the peer MDS doesn't support getvxattr op
ceph: wake up the waiters if any new caps comes
libceph: drop last_piece flag from ceph_msg_data_cursor
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Pull NFS client updates from Anna Schumaker:
"New Features:
- Add NFSv4.2 xattr tracepoints
- Replace xprtiod WQ in rpcrdma
- Flexfiles cancels I/O on layout recall or revoke
Bugfixes and Cleanups:
- Directly use ida_alloc() / ida_free()
- Don't open-code max_t()
- Prefer using strscpy over strlcpy
- Remove unused forward declarations
- Always return layout states on flexfiles layout return
- Have LISTXATTR treat NFS4ERR_NOXATTR as an empty reply instead of
error
- Allow more xprtrdma memory allocations to fail without triggering a
reclaim
- Various other xprtrdma clean ups
- Fix rpc_killall_tasks() races"
* tag 'nfs-for-6.1-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (27 commits)
NFSv4/flexfiles: Cancel I/O if the layout is recalled or revoked
SUNRPC: Add API to force the client to disconnect
SUNRPC: Add a helper to allow pNFS drivers to selectively cancel RPC calls
SUNRPC: Fix races with rpc_killall_tasks()
xprtrdma: Fix uninitialized variable
xprtrdma: Prevent memory allocations from driving a reclaim
xprtrdma: Memory allocation should be allowed to fail during connect
xprtrdma: MR-related memory allocation should be allowed to fail
xprtrdma: Clean up synopsis of rpcrdma_regbuf_alloc()
xprtrdma: Clean up synopsis of rpcrdma_req_create()
svcrdma: Clean up RPCRDMA_DEF_GFP
SUNRPC: Replace the use of the xprtiod WQ in rpcrdma
NFSv4.2: Add a tracepoint for listxattr
NFSv4.2: Add tracepoints for getxattr, setxattr, and removexattr
NFSv4.2: Move TRACE_DEFINE_ENUM(NFS4_CONTENT_*) under CONFIG_NFS_V4_2
NFSv4.2: Add special handling for LISTXATTR receiving NFS4ERR_NOXATTR
nfs: remove nfs_wait_atomic_killable() and nfs_write_prepare() declaration
NFSv4: remove nfs4_renewd_prepare_shutdown() declaration
fs/nfs/pnfs_nfs.c: fix spelling typo and syntax error in comment
NFSv4/pNFS: Always return layout stats on layout return for flexfiles
...
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git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs update from Mike Marshall:
"Change iterate to iterate_shared"
* tag 'for-linus-6.1-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
Orangefs: change iterate to iterate_shared
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The '-t/-T' parameters seem to have been swapped:
-t/--trace[=file]: save the stopped trace
to [file|timerlat_trace.txt]
-T/--thread us: stop trace if the thread latency
is higher than the argument in us
Swap them back.
Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Link: https://lore.kernel.org/r/20221006084409.3882542-1-pierre.gondois@arm.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The devm_request_region() function does not return error pointers, it
returns NULL on error.
Fixes: 914d9b2711dd ("sunhme: switch to devres")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Link: https://lore.kernel.org/r/Y0bWzJL8JknX8MUf@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The __prestera_nexthop_group_create() function returns NULL on error
and the prestera_nexthop_group_get() returns error pointers. Fix these
two checks.
Fixes: 0a23ae237171 ("net: marvell: prestera: Add router nexthops ABI")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Y0bWq+7DoKK465z8@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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syzbot found that kcm_tx_work() could crash [1] in:
/* Primarily for SOCK_SEQPACKET sockets */
if (likely(sk->sk_socket) &&
test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) {
<<*>> clear_bit(SOCK_NOSPACE, &sk->sk_socket->flags);
sk->sk_write_space(sk);
}
I think the reason is that another thread might concurrently
run in kcm_release() and call sock_orphan(sk) while sk is not
locked. kcm_tx_work() find sk->sk_socket being NULL.
[1]
BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:86 [inline]
BUG: KASAN: null-ptr-deref in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: null-ptr-deref in kcm_tx_work+0xff/0x160 net/kcm/kcmsock.c:742
Write of size 8 at addr 0000000000000008 by task kworker/u4:3/53
CPU: 0 PID: 53 Comm: kworker/u4:3 Not tainted 5.19.0-rc3-next-20220621-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: kkcmd kcm_tx_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
kasan_report+0xbe/0x1f0 mm/kasan/report.c:495
check_region_inline mm/kasan/generic.c:183 [inline]
kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
instrument_atomic_write include/linux/instrumented.h:86 [inline]
clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
kcm_tx_work+0xff/0x160 net/kcm/kcmsock.c:742
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
</TASK>
Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <tom@herbertland.com>
Link: https://lore.kernel.org/r/20221012133412.519394-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Eric Dumazet reported a use-after-free related to the per-netns ehash
series. [0]
When we create a TCP socket from userspace, the socket always holds a
refcnt of the netns. This guarantees that a reqsk timer is always fired
before netns dismantle. Each reqsk has a refcnt of its listener, so the
listener is not freed before the reqsk, and the net is not freed before
the listener as well.
OTOH, when in-kernel users create a TCP socket, it might not hold a refcnt
of its netns. Thus, a reqsk timer can be fired after the netns dismantle
and access freed per-netns ehash.
To avoid the use-after-free, we need to clean up TCP_NEW_SYN_RECV sockets
in inet_twsk_purge() if the netns uses a per-netns ehash.
[0]: https://lore.kernel.org/netdev/CANn89iLXMup0dRD_Ov79Xt8N9FM0XdhCHEN05sf3eLwxKweM6w@mail.gmail.com/
BUG: KASAN: use-after-free in tcp_or_dccp_get_hashinfo
include/net/inet_hashtables.h:181 [inline]
BUG: KASAN: use-after-free in reqsk_queue_unlink+0x320/0x350
net/ipv4/inet_connection_sock.c:913
Read of size 8 at addr ffff88807545bd80 by task syz-executor.2/8301
CPU: 1 PID: 8301 Comm: syz-executor.2 Not tainted
6.0.0-syzkaller-02757-gaf7d23f9d96a #0
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 09/22/2022
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:317 [inline]
print_report.cold+0x2ba/0x719 mm/kasan/report.c:433
kasan_report+0xb1/0x1e0 mm/kasan/report.c:495
tcp_or_dccp_get_hashinfo include/net/inet_hashtables.h:181 [inline]
reqsk_queue_unlink+0x320/0x350 net/ipv4/inet_connection_sock.c:913
inet_csk_reqsk_queue_drop net/ipv4/inet_connection_sock.c:927 [inline]
inet_csk_reqsk_queue_drop_and_put net/ipv4/inet_connection_sock.c:939 [inline]
reqsk_timer_handler+0x724/0x1160 net/ipv4/inet_connection_sock.c:1053
call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x1d0/0x9c8 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1107
</IRQ>
Fixes: d1e5e6408b30 ("tcp: Introduce optional per-netns ehash.")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20221012145036.74960-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Pantelis has not been active in recent years so no need to maintain
a separate entry for device tree overlays.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20221012220548.4163865-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
|
|
Zhu Lingshan has been writing and reviewing ifcvf patches for
a while now, add as reviewer.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Zhu Lingshan <lingshan.zhu@intel.com>
Acked-by: Jason Wang <jasowang@redhat.com>
|
|
commit 71491c54eafa ("virtio_pci: don't try to use intxif pin is zero")
breaks virtio_pci on powerpc, when running as a qemu guest.
vp_find_vqs() bails out because pci_dev->pin == 0.
But pci_dev->irq is populated correctly, so vp_find_vqs_intx() would
succeed if we called it - which is what the code used to do.
This seems to happen because pci_dev->pin is not populated in
pci_assign_irq(). A PCI core bug? Maybe.
However Linus said:
I really think that that is basically the only time you should use
that 'pci_dev->pin' thing: it basically exists not for "does this
device have an IRQ", but for "what is the routing of this irq on this
device".
and
The correct way to check for "no irq" doesn't use NO_IRQ at all, it just does
if (dev->irq) ...
so let's just check irq and be done with it.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Fixes: 71491c54eafa ("virtio_pci: don't try to use intxif pin is zero")
Cc: "Angus Chen" <angus.chen@jaguarmicro.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221012220312.308522-1-mst@redhat.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes Berg says:
====================
More wireless fixes for 6.1
This has only the fixes for the scan parsing issues.
* tag 'wireless-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: cfg80211: update hidden BSSes to avoid WARN_ON
wifi: mac80211: fix crash in beacon protection for P2P-device
wifi: mac80211_hwsim: avoid mac80211 warning on bad rate
wifi: cfg80211: avoid nontransmitted BSS list corruption
wifi: cfg80211: fix BSS refcounting bugs
wifi: cfg80211: ensure length byte is present before access
wifi: mac80211: fix MBSSID parsing use-after-free
wifi: cfg80211/mac80211: reject bad MBSSID elements
wifi: cfg80211: fix u8 overflow in cfg80211_update_notlisted_nontrans()
====================
Link: https://lore.kernel.org/r/20221013100522.46346-1-johannes@sipsolutions.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
|
|
Pull in the fixes for various scan parsing bugs found by
Sönke Huster by fuzzing.
|
|
FIELD_GET() must only be used with a mask that is a compile-time
constant. Mark the functions as __always_inline to avoid the problem.
Fixes: 21b688dabecb6a ("net: phy: micrel: Cable Diag feature for lan8814 phy")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Divya Koppera <Divya.Koppera@microchip.com>
Link: https://lore.kernel.org/r/20221011095437.12580-1-Divya.Koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
A WARN_ON call trace would be triggered when 'ct(commit, alg=helper)'
applies on a confirmed connection:
WARNING: CPU: 0 PID: 1251 at net/netfilter/nf_conntrack_extend.c:98
RIP: 0010:nf_ct_ext_add+0x12d/0x150 [nf_conntrack]
Call Trace:
<TASK>
nf_ct_helper_ext_add+0x12/0x60 [nf_conntrack]
__nf_ct_try_assign_helper+0xc4/0x160 [nf_conntrack]
__ovs_ct_lookup+0x72e/0x780 [openvswitch]
ovs_ct_execute+0x1d8/0x920 [openvswitch]
do_execute_actions+0x4e6/0xb60 [openvswitch]
ovs_execute_actions+0x60/0x140 [openvswitch]
ovs_packet_cmd_execute+0x2ad/0x310 [openvswitch]
genl_family_rcv_msg_doit.isra.15+0x113/0x150
genl_rcv_msg+0xef/0x1f0
which can be reproduced with these OVS flows:
table=0, in_port=veth1,tcp,tcp_dst=2121,ct_state=-trk
actions=ct(commit, table=1)
table=1, in_port=veth1,tcp,tcp_dst=2121,ct_state=+trk+new
actions=ct(commit, alg=ftp),normal
The issue was introduced by commit 248d45f1e193 ("openvswitch: Allow
attaching helper in later commit") where it somehow removed the check
of nf_ct_is_confirmed before asigning the helper. This patch is to fix
it by bringing it back.
Fixes: 248d45f1e193 ("openvswitch: Allow attaching helper in later commit")
Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Tested-by: Aaron Conole <aconole@redhat.com>
Link: https://lore.kernel.org/r/c5c9092a22a2194650222bffaf786902613deb16.1665085502.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Kuniyuki Iwashima says:
====================
tcp/udp: Fix memory leaks and data races around IPV6_ADDRFORM.
This series fixes some memory leaks and data races caused in the
same scenario where one thread converts an IPv6 socket into IPv4
with IPV6_ADDRFORM and another accesses the socket concurrently.
v4: https://lore.kernel.org/netdev/20221004171802.40968-1-kuniyu@amazon.com/
v3 (Resend): https://lore.kernel.org/netdev/20221003154425.49458-1-kuniyu@amazon.com/
v3: https://lore.kernel.org/netdev/20220929012542.55424-1-kuniyu@amazon.com/
v2: https://lore.kernel.org/netdev/20220928002741.64237-1-kuniyu@amazon.com/
v1: https://lore.kernel.org/netdev/20220927161209.32939-1-kuniyu@amazon.com/
====================
Link: https://lore.kernel.org/r/20221006185349.74777-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
setsockopt(IPV6_ADDRFORM) and tcp_v6_connect() change icsk->icsk_af_ops
under lock_sock(), but tcp_(get|set)sockopt() read it locklessly. To
avoid load/store tearing, we need to add READ_ONCE() and WRITE_ONCE()
for the reads and writes.
Thanks to Eric Dumazet for providing the syzbot report:
BUG: KCSAN: data-race in tcp_setsockopt / tcp_v6_connect
write to 0xffff88813c624518 of 8 bytes by task 23936 on cpu 0:
tcp_v6_connect+0x5b3/0xce0 net/ipv6/tcp_ipv6.c:240
__inet_stream_connect+0x159/0x6d0 net/ipv4/af_inet.c:660
inet_stream_connect+0x44/0x70 net/ipv4/af_inet.c:724
__sys_connect_file net/socket.c:1976 [inline]
__sys_connect+0x197/0x1b0 net/socket.c:1993
__do_sys_connect net/socket.c:2003 [inline]
__se_sys_connect net/socket.c:2000 [inline]
__x64_sys_connect+0x3d/0x50 net/socket.c:2000
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff88813c624518 of 8 bytes by task 23937 on cpu 1:
tcp_setsockopt+0x147/0x1c80 net/ipv4/tcp.c:3789
sock_common_setsockopt+0x5d/0x70 net/core/sock.c:3585
__sys_setsockopt+0x212/0x2b0 net/socket.c:2252
__do_sys_setsockopt net/socket.c:2263 [inline]
__se_sys_setsockopt net/socket.c:2260 [inline]
__x64_sys_setsockopt+0x62/0x70 net/socket.c:2260
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0xffffffff8539af68 -> 0xffffffff8539aff8
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23937 Comm: syz-executor.5 Not tainted
6.0.0-rc4-syzkaller-00331-g4ed9c1e971b1-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 08/26/2022
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit 086d49058cd8 ("ipv6: annotate some data-races around sk->sk_prot")
fixed some data-races around sk->sk_prot but it was not enough.
Some functions in inet6_(stream|dgram)_ops still access sk->sk_prot
without lock_sock() or rtnl_lock(), so they need READ_ONCE() to avoid
load tearing.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Originally, inet6_sk(sk)->XXX were changed under lock_sock(), so we were
able to clean them up by calling inet6_destroy_sock() during the IPv6 ->
IPv4 conversion by IPV6_ADDRFORM. However, commit 03485f2adcde ("udpv6:
Add lockless sendmsg() support") added a lockless memory allocation path,
which could cause a memory leak:
setsockopt(IPV6_ADDRFORM) sendmsg()
+-----------------------+ +-------+
- do_ipv6_setsockopt(sk, ...) - udpv6_sendmsg(sk, ...)
- sockopt_lock_sock(sk) ^._ called via udpv6_prot
- lock_sock(sk) before WRITE_ONCE()
- WRITE_ONCE(sk->sk_prot, &tcp_prot)
- inet6_destroy_sock() - if (!corkreq)
- sockopt_release_sock(sk) - ip6_make_skb(sk, ...)
- release_sock(sk) ^._ lockless fast path for
the non-corking case
- __ip6_append_data(sk, ...)
- ipv6_local_rxpmtu(sk, ...)
- xchg(&np->rxpmtu, skb)
^._ rxpmtu is never freed.
- goto out_no_dst;
- lock_sock(sk)
For now, rxpmtu is only the case, but not to miss the future change
and a similar bug fixed in commit e27326009a3d ("net: ping6: Fix
memleak in ipv6_renew_options()."), let's set a new function to IPv6
sk->sk_destruct() and call inet6_cleanup_sock() there. Since the
conversion does not change sk->sk_destruct(), we can guarantee that
we can clean up IPv6 resources finally.
We can now remove all inet6_destroy_sock() calls from IPv6 protocol
specific ->destroy() functions, but such changes are invasive to
backport. So they can be posted as a follow-up later for net-next.
Fixes: 03485f2adcde ("udpv6: Add lockless sendmsg() support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Commit 4b340ae20d0e ("IPv6: Complete IPV6_DONTFRAG support") forgot
to add a change to free inet6_sk(sk)->rxpmtu while converting an IPv6
socket into IPv4 with IPV6_ADDRFORM. After conversion, sk_prot is
changed to udp_prot and ->destroy() never cleans it up, resulting in
a memory leak.
This is due to the discrepancy between inet6_destroy_sock() and
IPV6_ADDRFORM, so let's call inet6_destroy_sock() from IPV6_ADDRFORM
to remove the difference.
However, this is not enough for now because rxpmtu can be changed
without lock_sock() after commit 03485f2adcde ("udpv6: Add lockless
sendmsg() support"). We will fix this case in the following patch.
Note we will rename inet6_destroy_sock() to inet6_cleanup_sock() and
remove unnecessary inet6_destroy_sock() calls in sk_prot->destroy()
in the future.
Fixes: 4b340ae20d0e ("IPv6: Complete IPV6_DONTFRAG support")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
syzbot reported a memory leak [0] related to IPV6_ADDRFORM.
The scenario is that while one thread is converting an IPv6 socket into
IPv4 with IPV6_ADDRFORM, another thread calls do_ipv6_setsockopt() and
allocates memory to inet6_sk(sk)->XXX after conversion.
Then, the converted sk with (tcp|udp)_prot never frees the IPv6 resources,
which inet6_destroy_sock() should have cleaned up.
setsockopt(IPV6_ADDRFORM) setsockopt(IPV6_DSTOPTS)
+-----------------------+ +----------------------+
- do_ipv6_setsockopt(sk, ...)
- sockopt_lock_sock(sk) - do_ipv6_setsockopt(sk, ...)
- lock_sock(sk) ^._ called via tcpv6_prot
- WRITE_ONCE(sk->sk_prot, &tcp_prot) before WRITE_ONCE()
- xchg(&np->opt, NULL)
- txopt_put(opt)
- sockopt_release_sock(sk)
- release_sock(sk) - sockopt_lock_sock(sk)
- lock_sock(sk)
- ipv6_set_opt_hdr(sk, ...)
- ipv6_update_options(sk, opt)
- xchg(&inet6_sk(sk)->opt, opt)
^._ opt is never freed.
- sockopt_release_sock(sk)
- release_sock(sk)
Since IPV6_DSTOPTS allocates options under lock_sock(), we can avoid this
memory leak by testing whether sk_family is changed by IPV6_ADDRFORM after
acquiring the lock.
This issue exists from the initial commit between IPV6_ADDRFORM and
IPV6_PKTOPTIONS.
[0]:
BUG: memory leak
unreferenced object 0xffff888009ab9f80 (size 96):
comm "syz-executor583", pid 328, jiffies 4294916198 (age 13.034s)
hex dump (first 32 bytes):
01 00 00 00 48 00 00 00 08 00 00 00 00 00 00 00 ....H...........
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<000000002ee98ae1>] kmalloc include/linux/slab.h:605 [inline]
[<000000002ee98ae1>] sock_kmalloc+0xb3/0x100 net/core/sock.c:2566
[<0000000065d7b698>] ipv6_renew_options+0x21e/0x10b0 net/ipv6/exthdrs.c:1318
[<00000000a8c756d7>] ipv6_set_opt_hdr net/ipv6/ipv6_sockglue.c:354 [inline]
[<00000000a8c756d7>] do_ipv6_setsockopt.constprop.0+0x28b7/0x4350 net/ipv6/ipv6_sockglue.c:668
[<000000002854d204>] ipv6_setsockopt+0xdf/0x190 net/ipv6/ipv6_sockglue.c:1021
[<00000000e69fdcf8>] tcp_setsockopt+0x13b/0x2620 net/ipv4/tcp.c:3789
[<0000000090da4b9b>] __sys_setsockopt+0x239/0x620 net/socket.c:2252
[<00000000b10d192f>] __do_sys_setsockopt net/socket.c:2263 [inline]
[<00000000b10d192f>] __se_sys_setsockopt net/socket.c:2260 [inline]
[<00000000b10d192f>] __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2260
[<000000000a80d7aa>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
[<000000000a80d7aa>] do_syscall_64+0x38/0x90 arch/x86/entry/common.c:80
[<000000004562b5c6>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
A previous commit moved the notifications and end-write handling, but
it is now missing a few spots where we also want to call both of those.
Without that, we can potentially be missing file notifications, and
more importantly, have an imbalance in the super_block writers sem
accounting.
Fixes: b000145e9907 ("io_uring/rw: defer fsnotify calls to task context")
Reported-by: Dave Chinner <david@fromorbit.com>
Link: https://lore.kernel.org/all/20221010050319.GC2703033@dread.disaster.area/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
Only with the big sqe feature they take 128 bytes per entry, but we
unconditionally advance by 128B. Fix it by using sq_shift.
Fixes: 3b8fdd1dc35e3 ("io_uring/fdinfo: fix sqe dumping for IORING_SETUP_SQE128")
Reported-and-tested-by: syzbot+e5198737e8a2d23d958c@syzkaller.appspotmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8b41287cb75d5efb8fcb5cccde845ddbbadd8372.1665449983.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
This fixes the shadowing of the outer variable rw in the function
io_write(). No issue is caused by this, but let's silence the shadowing
warning anyway.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Link: https://lore.kernel.org/r/20221010234330.244244-1-shr@devkernel.io
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
The msg variants of sending aren't audited separately, so we should not
be setting audit_skip for the zerocopy sendmsg variant either.
Fixes: 493108d95f14 ("io_uring/net: zerocopy sendmsg")
Reported-by: Paul Moore <paul@paul-moore.com>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
Running local task_work requires taking uring_lock, for submit + wait we
can try to run them right after submit while we still hold the lock and
save one lock/unlokc pair. The optimisation was implemented in the first
local tw patches but got dropped for simplicity.
Suggested-by: Dylan Yudaken <dylany@fb.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/281fc79d98b5d91fe4778c5137a17a2ab4693e5c.1665088876.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
io_cqring_wake() needs a barrier for the waitqueue_active() check.
However, in the case of io_req_local_work_add(), we call llist_add()
first, which implies an atomic. Hence we can replace smb_mb() with
smp_mb__after_atomic().
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/43983bc8bc507172adda7a0f00cab1aff09fd238.1665018309.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
We treat EINPROGRESS like EAGAIN, but if we're retrying post getting
EINPROGRESS, then we just need to check the socket for errors and
terminate the request.
This was exposed on a bluetooth connection request which ends up
taking a while and hitting EINPROGRESS, and yields a CQE result of
-EBADFD because we're retrying a connect on a socket that is now
connected.
Cc: stable@vger.kernel.org
Fixes: 87f80d623c6c ("io_uring: handle connect -EINPROGRESS like -EAGAIN")
Link: https://github.com/axboe/liburing/issues/671
Reported-by: Aidan Sun <aidansun05@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Notifications were killed but there is a couple of fields and struct
declarations left, remove them.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/8df8877d677be5a2b43afd936d600e60105ea960.1664849941.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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->mm_account should be released only after we free all registered
buffers, otherwise __io_sqe_buffers_unregister() will see a NULL
->mm_account and skip locked_vm accounting.
Cc: <Stable@vger.kernel.org>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/6d798f65ed4ab8db3664c4d3397d4af16ca98846.1664849932.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Instead of putting io_uring's registered files in unix_gc() we want it
to be done by io_uring itself. The trick here is to consider io_uring
registered files for cycle detection but not actually putting them down.
Because io_uring can't register other ring instances, this will remove
all refs to the ring file triggering the ->release path and clean up
with io_ring_ctx_free().
Cc: stable@vger.kernel.org
Fixes: 6b06314c47e1 ("io_uring: add file set registration")
Reported-and-tested-by: David Bouman <dbouman03@gmail.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
[axboe: add kerneldoc comment to skb, fold in skb leak fix]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull more KUnit updates from Shuah Khan:
"Features and fixes:
- simplify resource use
- make kunit_malloc() and kunit_free() allocations and frees
consistent. kunit_free() frees only the memory allocated by
kunit_malloc()
- stop downloading risc-v opensbi binaries using wget
- other fixes and improvements to tool and KUnit framework"
* tag 'linux-kselftest-kunit-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
Documentation: kunit: Update description of --alltests option
kunit: declare kunit_assert structs as const
kunit: rename base KUNIT_ASSERTION macro to _KUNIT_FAILED
kunit: remove format func from struct kunit_assert, get it to 0 bytes
kunit: tool: Don't download risc-v opensbi firmware with wget
kunit: make kunit_kfree(NULL) a no-op to match kfree()
kunit: make kunit_kfree() not segfault on invalid inputs
kunit: make kunit_kfree() only work on pointers from kunit_malloc() and friends
kunit: drop test pointer in string_stream_fragment
kunit: string-stream: Simplify resource use
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull more Kselftest updates from Shuah Khan:
"This consists of fixes and improvements to memory-hotplug test and a
minor spelling fix to ftrace test"
* tag 'linux-kselftest-next-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
docs: notifier-error-inject: Correct test's name
selftests/memory-hotplug: Adjust log info for maintainability
selftests/memory-hotplug: Restore memory before exit
selftests/memory-hotplug: Add checking after online or offline
selftests/ftrace: func_event_triggers: fix typo in user message
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Pull VFIO updates from Alex Williamson:
- Prune private items from vfio_pci_core.h to a new internal header,
fix missed function rename, and refactor vfio-pci interrupt defines
(Jason Gunthorpe)
- Create consistent naming and handling of ioctls with a function per
ioctl for vfio-pci and vfio group handling, use proper type args
where available (Jason Gunthorpe)
- Implement a set of low power device feature ioctls allowing userspace
to make use of power states such as D3cold where supported (Abhishek
Sahu)
- Remove device counter on vfio groups, which had restricted the page
pinning interface to singleton groups to account for limitations in
the type1 IOMMU backend. Document usage as limited to emulated IOMMU
devices, ie. traditional mdev devices where this restriction is
consistent (Jason Gunthorpe)
- Correct function prefix in hisi_acc driver incurred during previous
refactoring (Shameer Kolothum)
- Correct typo and remove redundant warning triggers in vfio-fsl driver
(Christophe JAILLET)
- Introduce device level DMA dirty tracking uAPI and implementation in
the mlx5 variant driver (Yishai Hadas & Joao Martins)
- Move much of the vfio_device life cycle management into vfio core,
simplifying and avoiding duplication across drivers. This also
facilitates adding a struct device to vfio_device which begins the
introduction of device rather than group level user support and fills
a gap allowing userspace identify devices as vfio capable without
implicit knowledge of the driver (Kevin Tian & Yi Liu)
- Split vfio container handling to a separate file, creating a more
well defined API between the core and container code, masking IOMMU
backend implementation from the core, allowing for an easier future
transition to an iommufd based implementation of the same (Jason
Gunthorpe)
- Attempt to resolve race accessing the iommu_group for a device
between vfio releasing DMA ownership and removal of the device from
the IOMMU driver. Follow-up with support to allow vfio_group to exist
with NULL iommu_group pointer to support existing userspace use cases
of holding the group file open (Jason Gunthorpe)
- Fix error code and hi/lo register manipulation issues in the hisi_acc
variant driver, along with various code cleanups (Longfang Liu)
- Fix a prior regression in GVT-g group teardown, resulting in
unreleased resources (Jason Gunthorpe)
- A significant cleanup and simplification of the mdev interface,
consolidating much of the open coded per driver sysfs interface
support into the mdev core (Christoph Hellwig)
- Simplification of tracking and locking around vfio_groups that fall
out from previous refactoring (Jason Gunthorpe)
- Replace trivial open coded f_ops tests with new helper (Alex
Williamson)
* tag 'vfio-v6.1-rc1' of https://github.com/awilliam/linux-vfio: (77 commits)
vfio: More vfio_file_is_group() use cases
vfio: Make the group FD disassociate from the iommu_group
vfio: Hold a reference to the iommu_group in kvm for SPAPR
vfio: Add vfio_file_is_group()
vfio: Change vfio_group->group_rwsem to a mutex
vfio: Remove the vfio_group->users and users_comp
vfio/mdev: add mdev available instance checking to the core
vfio/mdev: consolidate all the description sysfs into the core code
vfio/mdev: consolidate all the available_instance sysfs into the core code
vfio/mdev: consolidate all the name sysfs into the core code
vfio/mdev: consolidate all the device_api sysfs into the core code
vfio/mdev: remove mtype_get_parent_dev
vfio/mdev: remove mdev_parent_dev
vfio/mdev: unexport mdev_bus_type
vfio/mdev: remove mdev_from_dev
vfio/mdev: simplify mdev_type handling
vfio/mdev: embedd struct mdev_parent in the parent data structure
vfio/mdev: make mdev.h standalone includable
drm/i915/gvt: simplify vgpu configuration management
drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types
...
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