There is no need to declare an extra tables to just create directory,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare an extra tables to just create directory,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Acked-by: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare an extra tables to just create directory,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
There is no need to declare two tables to just create directories,
this can be easily be done with a prefix path with register_sysctl().
Simplify this registration.
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Expand documentation to clarify:
o that paths don't need to exist for the new API callers
o clarify that we *require* callers to keep the memory of
the table around during the lifetime of the sysctls
o annotate routines we are trying to deprecate and later remove
Cc: stable@vger.kernel.org # v5.17
Cc: Christian Brauner <brauner@kernel.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
register_sysctl_table() is a deprecated compatibility wrapper.
register_sysctl_init() can do the directory creation for you so just
use that.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Juergen Gross <jgross@suse.com>
register_sysctl_table() is a deprecated compatibility wrapper.
register_sysctl() can do the directory creation for you so just use
that.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Song Liu <song@kernel.org>
register_sysctl_table() is a deprecated compatibility wrapper.
register_sysctl() can do the directory creation for you so just use
that.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Wei Liu <wei.liu@kernel.org>
register_sysctl_table() is a deprecated compatibility wrapper.
register_sysctl() can do the directory creation for you so just use that.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Using register_sysctl_paths() is only required if we are using
leafs with entries but all we are doing is creates leafs with
just one leaf and then entries and register_sysctl_init() works
well with that already.
The 555 permission is already retained by the new_dir() proc
sysctl directory creator.
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
register_sysctl_paths() is only needed if you have childs (directories)
with entries. Just use register_sysctl_init() as it also does the
kmemleak check for you.
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
register_sysctl_paths() is only need if you have directories with
entries, simplify this by using register_sysctl().
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
register_sysctl_paths() is not required, we can just use
register_sysctl() with the required path specified.
Reviewed-by: John Johansen <john.johansen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Using register_sysctl_paths() is really only needed if you have
subdirectories with entries. We can use the simple register_sysctl()
instead.
Acked-by: John Johansen <john.johansen@canonical.com>
Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Relatively new docs which I added which hinted the base directories needed
to be created before is wrong, remove that incorrect comment. This has been
hinted before by Eric twice already [0] [1], I had just not verified that
until now. Now that I've verified that updates the docs to relax the context
described.
[0] https://lkml.kernel.org/r/875ys0azt8.fsf@email.froward.int.ebiederm.org
[1] https://lkml.kernel.org/r/87ftbiud6s.fsf@x220.int.ebiederm.org
Cc: stable@vger.kernel.org # v5.17
Cc: Christian Brauner <brauner@kernel.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Suggested-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Move the code which creates the subdirectories for a ctl table
into a helper routine so to make it easier to review. Document
the goal.
This creates no functional changes.
Reviewed-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Update the docs for __register_sysctl_table() to make it clear no child
entries can be passed. When the child is true these are non-leaf entries
on the ctl table and sysctl treats these as directories. The point to
__register_sysctl_table() is to deal only with directories not part of
the ctl table where thay may riside, to be simple and avoid recursion.
While at it, hint towards using long on extra1 and extra2 later.
Cc: stable@vger.kernel.org # v5.17
Cc: Christian Brauner <brauner@kernel.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
This moves all hugetlb sysctls to its own file, also kill an
useless hugetlb_treat_movable_handler() defination.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
The sysctl_unprivileged_userfaultfd is part of userfaultfd, move it to
its own file.
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Fix two significant performance issues with fsverity.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux
Pull fsverity fixes from Eric Biggers:
"Fix two significant performance issues with fsverity"
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY
fsverity: Remove WQ_UNBOUND from fsverity read workqueue
Fix a bug where when a filesystem was being unmounted, the fscrypt
keyring was destroyed before inodes have been released by the Landlock
LSM. This bug was found by syzbot.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux
Pull fscrypt fix from Eric Biggers:
"Fix a bug where when a filesystem was being unmounted, the fscrypt
keyring was destroyed before inodes have been released by the Landlock
LSM.
This bug was found by syzbot"
* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
fscrypt: check for NULL keyring in fscrypt_put_master_key_activeref()
fscrypt: improve fscrypt_destroy_keyring() documentation
fscrypt: destroy keyring after security_sb_delete()
The error handling for platform_get_irq() failing no longer works after
a recent change, clang now points this out with a warning:
drivers/gpu/host1x/dev.c:520:6: error: variable 'syncpt_irq' is uninitialized when used here [-Werror,-Wuninitialized]
if (syncpt_irq < 0)
^~~~~~~~~~
Fix this by removing the variable and checking the correct error status.
Fixes: 625d4ffb43 ("gpu: host1x: Rewrite syncpoint interrupt handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix setting affinity of hwlat threads in containers
Using sched_set_affinity() has unwanted side effects when being
called within a container. Use set_cpus_allowed_ptr() instead.
- Fix per cpu thread management of the hwlat tracer
* Do not start per_cpu threads if one is already running for the CPU.
* When starting per_cpu threads, do not clear the kthread variable
as it may already be set to running per cpu threads
- Fix return value for test_gen_kprobe_cmd()
On error the return value was overwritten by being set to
the result of the call from kprobe_event_delete(), which would
likely succeed, and thus have the function return success.
- Fix splice() reads from the trace file that was broken by
36e2c7421f ("fs: don't allow splice read/write without explicit ops")
- Remove obsolete and confusing comment in ring_buffer.c
The original design of the ring buffer used struct page flags
for tricks to optimize, which was shortly removed due to them
being tricks. But a comment for those tricks remained.
- Set local functions and variables to static
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Merge tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix setting affinity of hwlat threads in containers
Using sched_set_affinity() has unwanted side effects when being
called within a container. Use set_cpus_allowed_ptr() instead
- Fix per cpu thread management of the hwlat tracer:
- Do not start per_cpu threads if one is already running for the CPU
- When starting per_cpu threads, do not clear the kthread variable
as it may already be set to running per cpu threads
- Fix return value for test_gen_kprobe_cmd()
On error the return value was overwritten by being set to the result
of the call from kprobe_event_delete(), which would likely succeed,
and thus have the function return success
- Fix splice() reads from the trace file that was broken by commit
36e2c7421f ("fs: don't allow splice read/write without explicit
ops")
- Remove obsolete and confusing comment in ring_buffer.c
The original design of the ring buffer used struct page flags for
tricks to optimize, which was shortly removed due to them being
tricks. But a comment for those tricks remained
- Set local functions and variables to static
* tag 'trace-v6.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing/hwlat: Replace sched_setaffinity with set_cpus_allowed_ptr
ring-buffer: remove obsolete comment for free_buffer_page()
tracing: Make splice_read available again
ftrace: Set direct_ops storage-class-specifier to static
trace/hwlat: Do not start per-cpu thread if it is already running
trace/hwlat: Do not wipe the contents of per-cpu thread data
tracing/osnoise: set several trace_osnoise.c variables storage-class-specifier to static
tracing: Fix wrong return in kprobe_event_gen_test.c
There is a problem with the behavior of hwlat in a container,
resulting in incorrect output. A warning message is generated:
"cpumask changed while in round-robin mode, switching to mode none",
and the tracing_cpumask is ignored. This issue arises because
the kernel thread, hwlatd, is not a part of the container, and
the function sched_setaffinity is unable to locate it using its PID.
Additionally, the task_struct of hwlatd is already known.
Ultimately, the function set_cpus_allowed_ptr achieves
the same outcome as sched_setaffinity, but employs task_struct
instead of PID.
Test case:
# cd /sys/kernel/tracing
# echo 0 > tracing_on
# echo round-robin > hwlat_detector/mode
# echo hwlat > current_tracer
# unshare --fork --pid bash -c 'echo 1 > tracing_on'
# dmesg -c
Actual behavior:
[573502.809060] hwlat_detector: cpumask changed while in round-robin mode, switching to mode none
Link: https://lore.kernel.org/linux-trace-kernel/20230316144535.1004952-1-costa.shul@redhat.com
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Fixes: 0330f7aa8e ("tracing: Have hwlat trace migrate across tracing_cpumask CPUs")
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The comment refers to mm/slob.c which is being removed. It comes from
commit ed56829cb3 ("ring_buffer: reset buffer page when freeing") and
according to Steven the borrowed code was a page mapcount and mapping
reset, which was later removed by commit e4c2ce82ca ("ring_buffer:
allocate buffer page pointer"). Thus the comment is not accurate anyway,
remove it.
Link: https://lore.kernel.org/linux-trace-kernel/20230315142446.27040-1-vbabka@suse.cz
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Reported-by: Mike Rapoport <mike.rapoport@gmail.com>
Suggested-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Fixes: e4c2ce82ca ("ring_buffer: allocate buffer page pointer")
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Since the commit 36e2c7421f ("fs: don't allow splice read/write
without explicit ops") is applied to the kernel, splice() and
sendfile() calls on the trace file (/sys/kernel/debug/tracing
/trace) return EINVAL.
This patch restores these system calls by initializing splice_read
in file_operations of the trace file. This patch only enables such
functionalities for the read case.
Link: https://lore.kernel.org/linux-trace-kernel/20230314013707.28814-1-sfoon.kim@samsung.com
Cc: stable@vger.kernel.org
Fixes: 36e2c7421f ("fs: don't allow splice read/write without explicit ops")
Signed-off-by: Sung-hun Kim <sfoon.kim@samsung.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Here are some small tty and serial driver fixes for 6.3-rc3 to resolve
some reported issues.
They include:
- 8250 driver Kconfig issue pointed out by you that showed up in -rc1
- qcom-geni serial driver fixes
- various 8250 driver fixes for reported problems
- fsl_lpuart driver fixes
- serdev fix for regression in -rc1
- vt.c bugfix
All have been in linux-next for over a week with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 6.3-rc3 to resolve
some reported issues.
They include:
- 8250 driver Kconfig issue pointed out by you that showed up in -rc1
- qcom-geni serial driver fixes
- various 8250 driver fixes for reported problems
- fsl_lpuart driver fixes
- serdev fix for regression in -rc1
- vt.c bugfix
All have been in linux-next for over a week with no reported problems"
* tag 'tty-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: vt: protect KD_FONT_OP_GET_TALL from unbound access
serial: qcom-geni: drop bogus uart_write_wakeup()
serial: qcom-geni: fix mapping of empty DMA buffer
serial: qcom-geni: fix DMA mapping leak on shutdown
serial: qcom-geni: fix console shutdown hang
serdev: Set fwnode for serdev devices
tty: serial: fsl_lpuart: fix race on RX DMA shutdown
serial: 8250_pci1xxxx: Disable SERIAL_8250_PCI1XXXX config by default
serial: 8250_fsl: fix handle_irq locking
serial: 8250_em: Fix UART port type
serial: 8250: ASPEED_VUART: select REGMAP instead of depending on it
tty: serial: fsl_lpuart: skip waiting for transmission complete when UARTCTRL_SBK is asserted
Revert "tty: serial: fsl_lpuart: adjust SERIAL_FSL_LPUART_CONSOLE config dependency"
Here are a few small char/misc/other driver subsystem patches to resolve
reported problems for 6.3-rc3.
Included in here are:
- Interconnect driver fixes for reported problems
- Memory driver fixes for reported problems.
- nvmem core fix
- firmware driver fix for reported problem.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small char/misc/other driver subsystem patches to
resolve reported problems for 6.3-rc3.
Included in here are:
- Interconnect driver fixes for reported problems
- Memory driver fixes for reported problems
- nvmem core fix
- firmware driver fix for reported problem
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (23 commits)
memory: tegra30-emc: fix interconnect registration race
memory: tegra20-emc: fix interconnect registration race
memory: tegra124-emc: fix interconnect registration race
memory: tegra: fix interconnect registration race
interconnect: exynos: drop redundant link destroy
interconnect: exynos: fix registration race
interconnect: exynos: fix node leak in probe PM QoS error path
interconnect: qcom: msm8974: fix registration race
interconnect: qcom: rpmh: fix registration race
interconnect: qcom: rpmh: fix probe child-node error handling
interconnect: qcom: rpm: fix registration race
nvmem: core: return -ENOENT if nvmem cell is not found
firmware: xilinx: don't make a sleepable memory allocation from an atomic context
interconnect: qcom: rpm: fix probe child-node error handling
interconnect: qcom: osm-l3: fix registration race
interconnect: imx: fix registration race
interconnect: fix provider registration API
interconnect: fix icc_provider_del() error handling
interconnect: fix mem leak when freeing nodes
interconnect: qcom: qcm2290: Fix MASTER_SNOC_BIMC_NRT
...
changes over sysfs have been done instead of waiting until something
else triggers the workqueue later - another error or the polling
interval cycle is reached
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Merge tag 'ras_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fix from Borislav Petkov:
- Flush out logged errors immediately after MCA banks configuration
changes over sysfs have been done instead of waiting until something
else triggers the workqueue later - another error or the polling
interval cycle is reached
* tag 'ras_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mce: Make sure logged MCEs are processed after sysfs update
to groups
- Update the proper event time tracking variable depending on the
event type
- Fix a memory overwrite issue due to using the wrong function argument
when outputting perf events
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Merge tag 'perf_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Check whether sibling events have been deactivated before adding them
to groups
- Update the proper event time tracking variable depending on the event
type
- Fix a memory overwrite issue due to using the wrong function argument
when outputting perf events
* tag 'perf_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf: Fix check before add_event_to_groups() in perf_group_detach()
perf: fix perf_event_context->time
perf/core: Fix perf_output_begin parameter is incorrectly invoked in perf_event_bpf_output
- Clear temporary storage in the resctrl code to prevent access to an
unexistent MSR
- Add a simple throttling mechanism to protect the hypervisor from potentially
malicious SEV guests issuing requests in rapid succession.
In order to not jeopardize the sanity of everyone involved in
maintaining this code, the request issuing side has received
a cleanup, split in more or less trivial, small and digestible pieces.
Otherwise, the code was threatening to become an unmaintainable mess.
Therefore, that cleanup is marked indirectly also for stable so that
there's no differences between the upstream code and the stable
variant when it comes down to backporting more there.
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Merge tag 'x86_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"There's a little bit more 'movement' in there for my taste but it
needs to happen and should make the code better after it.
- Check cmdline_find_option()'s return value before further
processing
- Clear temporary storage in the resctrl code to prevent access to an
unexistent MSR
- Add a simple throttling mechanism to protect the hypervisor from
potentially malicious SEV guests issuing requests in rapid
succession.
In order to not jeopardize the sanity of everyone involved in
maintaining this code, the request issuing side has received a
cleanup, split in more or less trivial, small and digestible
pieces. Otherwise, the code was threatening to become an
unmaintainable mess.
Therefore, that cleanup is marked indirectly also for stable so
that there's no differences between the upstream code and the
stable variant when it comes down to backporting more there"
* tag 'x86_urgent_for_v6.3_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Fix use of uninitialized buffer in sme_enable()
x86/resctrl: Clear staged_config[] before and after it is used
virt/coco/sev-guest: Add throttling awareness
virt/coco/sev-guest: Convert the sw_exit_info_2 checking to a switch-case
virt/coco/sev-guest: Do some code style cleanups
virt/coco/sev-guest: Carve out the request issuing logic into a helper
virt/coco/sev-guest: Remove the disable_vmpck label in handle_guest_request()
virt/coco/sev-guest: Simplify extended guest request handling
virt/coco/sev-guest: Check SEV_SNP attribute at probe time
syzkaller.
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Merge tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fix from Ted Ts'o:
"Fix a double unlock bug on an error path in ext4, found by smatch and
syzkaller"
* tag 'ext4_for_linus_urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix possible double unlock when moving a directory
smatch reports this warning
kernel/trace/ftrace.c:2594:19: warning:
symbol 'direct_ops' was not declared. Should it be static?
The variable direct_ops is only used in ftrace.c, so it should be static
Link: https://lore.kernel.org/linux-trace-kernel/20230311135113.711824-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
The hwlatd tracer will end up starting multiple per-cpu threads with
the following script:
#!/bin/sh
cd /sys/kernel/debug/tracing
echo 0 > tracing_on
echo hwlat > current_tracer
echo per-cpu > hwlat_detector/mode
echo 100000 > hwlat_detector/width
echo 200000 > hwlat_detector/window
echo 1 > tracing_on
To fix the issue, check if the hwlatd thread for the cpu is already
running, before starting a new one. Along with the previous patch, this
avoids running multiple instances of the same CPU thread on the system.
Link: https://lore.kernel.org/all/20230302113654.2984709-1-tero.kristo@linux.intel.com/
Link: https://lkml.kernel.org/r/20230310100451.3948583-3-tero.kristo@linux.intel.com
Cc: stable@vger.kernel.org
Fixes: f46b16520a ("trace/hwlat: Implement the per-cpu mode")
Signed-off-by: Tero Kristo <tero.kristo@linux.intel.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
smatch reports several similar warnings
kernel/trace/trace_osnoise.c:220:1: warning:
symbol '__pcpu_scope_per_cpu_osnoise_var' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:243:1: warning:
symbol '__pcpu_scope_per_cpu_timerlat_var' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:335:14: warning:
symbol 'interface_lock' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:2242:5: warning:
symbol 'timerlat_min_period' was not declared. Should it be static?
kernel/trace/trace_osnoise.c:2243:5: warning:
symbol 'timerlat_max_period' was not declared. Should it be static?
These variables are only used in trace_osnoise.c, so it should be static
Link: https://lore.kernel.org/linux-trace-kernel/20230309150414.4036764-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Overwriting the error code with the deletion result may cause the
function to return 0 despite encountering an error. Commit b111545d26
("tracing: Remove the useless value assignment in
test_create_synth_event()") solves a similar issue by
returning the original error code, so this patch does the same.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Link: https://lore.kernel.org/linux-trace-kernel/20230131075818.5322-1-aagusev@ispras.ru
Signed-off-by: Anton Gusev <aagusev@ispras.ru>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
It is a bug for fscrypt_put_master_key_activeref() to see a NULL
keyring. But it used to be possible due to the bug, now fixed, where
fscrypt_destroy_keyring() was called before security_sb_delete(). To be
consistent with how fscrypt_destroy_keyring() uses WARN_ON for the same
issue, WARN and leak the fscrypt_master_key if the keyring is NULL
instead of dereferencing the NULL pointer.
This is a robustness improvement, not a fix.
Link: https://lore.kernel.org/r/20230313221231.272498-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
- Drop omap1 osk driver
- Various potential divide by zero pixclock fixes
- Add pixelclock and fb_check_var() to stifb
- Code style cleanups and indenting fixes
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Merge tag 'fbdev-for-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev fixes from Helge Deller:
"The majority of lines changed is due to a code style cleanup in the
pnmtologo helper program.
Arnd removed the omap1 osk driver and the SIS fb driver is now
orphaned.
Other than that it's the usual bunch of small fixes and cleanups, e.g.
prevent possible divide-by-zero in various fb drivers if the pixclock
is zero and various conversions to devm_platform*() and of_property*()
functions:
- Drop omap1 osk driver
- Various potential divide by zero pixclock fixes
- Add pixelclock and fb_check_var() to stifb
- Code style cleanups and indenting fixes"
* tag 'fbdev-for-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: Use of_property_present() for testing DT property presence
fbdev: au1200fb: Fix potential divide by zero
fbdev: lxfb: Fix potential divide by zero
fbdev: intelfb: Fix potential divide by zero
fbdev: nvidia: Fix potential divide by zero
fbdev: stifb: Provide valid pixelclock and add fb_check_var() checks
fbdev: omapfb: remove omap1 osk driver
fbdev: xilinxfb: Use devm_platform_get_and_ioremap_resource()
fbdev: wm8505fb: Use devm_platform_ioremap_resource()
fbdev: pxa3xx-gcu: Use devm_platform_get_and_ioremap_resource()
fbdev: Use of_property_read_bool() for boolean properties
fbdev: clps711x-fb: Use devm_platform_get_and_ioremap_resource()
fbdev: tgafb: Fix potential divide by zero
MAINTAINERS: orphan SIS FRAMEBUFFER DRIVER
fbdev: omapfb: cleanup inconsistent indentation
drivers: video: logo: add SPDX comment, remove GPL notice in pnmtologo.c
drivers: video: logo: fix code style issues in pnmtologo.c
- Exclude kallsyms_seqs_of_names from kallsyms to fix build error
- Fix 'make kernelrelease' for external module builds
- Get the Debian source package compilable again
- Fix the wrong uname when Debian packages are built with the
KDEB_PKGVERSION option
- Fix superfluous CROSS_COMPILE when building Debian packages
- Fix RPM package build error when KCONFIG_CONFIG is set
- Use 'git archive' for creating source tarballs
- Remove the scripts/list-gitignored tool
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Merge tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Exclude kallsyms_seqs_of_names from kallsyms to fix build error
- Fix 'make kernelrelease' for external module builds
- Get the Debian source package compilable again
- Fix the wrong uname when Debian packages are built with the
KDEB_PKGVERSION option
- Fix superfluous CROSS_COMPILE when building Debian packages
- Fix RPM package build error when KCONFIG_CONFIG is set
- Use 'git archive' for creating source tarballs
- Remove the scripts/list-gitignored tool
* tag 'kbuild-fixes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: use git-archive for source package creation
kbuild: rpm-pkg: move source components to rpmbuild/SOURCES
kbuild: deb-pkg: use dh_listpackages to know enabled packages
kbuild: deb-pkg: split image and debug objects staging out into functions
kbuild: deb-pkg: set CROSS_COMPILE only when undefined
kbuild: deb-pkg: do not take KERNELRELEASE from the source version
kbuild: deb-pkg: make debian source package working again
Makefile: Make kernelrelease target work with M=
kconfig: Update config changed flag before calling callback
kallsyms: add kallsyms_seqs_of_names to list of special symbols
- ltc2992, adm1266: Set missing can_sleep flag
- tmp512/tmp513: Drop of_match_ptr for ID table to fix build with !CONFIG_OF
- ucd90320: Fix back-to-back access problem
- ina3221: Fix bad error return from probe function
- xgene: Fix use-after-free bug in remove function
- adt7475: Fix hysteresis register bit masks, and fix association
of 'smoothing' attributes
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Merge tag 'hwmon-for-v6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- ltc2992, adm1266: Set missing can_sleep flag
- tmp512/tmp513: Drop of_match_ptr for ID table to fix build with
!CONFIG_OF
- ucd90320: Fix back-to-back access problem
- ina3221: Fix bad error return from probe function
- xgene: Fix use-after-free bug in remove function
- adt7475: Fix hysteresis register bit masks, and fix association of
'smoothing' attributes
* tag 'hwmon-for-v6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ltc2992) Set `can_sleep` flag for GPIO chip
hwmon: (adm1266) Set `can_sleep` flag for GPIO chip
hwmon: tmp512: drop of_match_ptr for ID table
hwmon: (ucd90320) Add minimum delay between bus accesses
hwmon: (ina3221) return prober error code
hwmon: (xgene) Fix use after free bug in xgene_hwmon_remove due to race condition
hwmon: (adt7475) Fix masking of hysteresis registers
hwmon: (adt7475) Display smoothing attributes in correct order
* Two fixes from Ondrej for the pata_parport driver to address an issue
with error handling during drive connection and to fix memory leaks
in case of errors during initialization and when disconnecting a
device.
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Merge tag 'ata-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata fixes from Damien Le Moal:
- Two fixes from Ondrej for the pata_parport driver to address an issue
with error handling during drive connection and to fix memory leaks
in case of errors during initialization and when disconnecting a
device.
* tag 'ata-6.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_parport: fix memory leaks
ata: pata_parport: fix parport release without claim
The __find_restype() function loops over the m5mols_default_ffmt[]
array, and the termination condition ends up being wrong: instead of
stopping when the iterator becomes the size of the array it traverses,
it stops after it has already overshot the array.
Now, in practice this doesn't likely matter, because the code will
always find the entry it looks for, and will thus return early and never
hit that last extra iteration.
But it turns out that clang will unroll the loop fully, because it has
only two iterations (well, three due to the off-by-one bug), and then
clang will end up just giving up in the middle of the loop unrolling
when it notices that the code walks past the end of the array.
And that made 'objtool' very unhappy indeed, because the generated code
just falls off the edge of the universe, and ends up falling through to
the next function, causing this warning:
drivers/media/i2c/m5mols/m5mols.o: warning: objtool: m5mols_set_fmt() falls through to next function m5mols_get_frame_desc()
Fix the loop ending condition.
Reported-by: Jens Axboe <axboe@kernel.dk>
Analyzed-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Analyzed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/linux-block/CAHk-=wgTSdKYbmB1JYM5vmHMcD9J9UZr0mn7BOYM_LudrP+Xvw@mail.gmail.com/
Fixes: bc125106f8 ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP")
Cc: HeungJun, Kim <riverful.kim@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Luis Chamberlain
Kefeng Wang
ZhangPeng
Linus Torvalds
Arnd Bergmann
Costa Shulyupin
Vlastimil Babka
Sung-hun Kim
Tom Rix
Tero Kristo
Anton Gusev
Eric Biggers
Theodore Ts'o