Commit Graph

41424 Commits

Author SHA1 Message Date
Linus Torvalds
6fbf71854e Revert a patch causing a regression as described in the cset:
"This made a simple 'perf record -e cycles:pp make -j199' stop working on
     the Ampere ARM64 system Linus uses to test ARM64 kernels, as discussed
     at length in the threads in the Link tags below.
 
     The fix provided by Ian wasn't acceptable and work to fix this will take
     time we don't have at this point, so lets revert this and work on it on
     the next devel cycle."
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v6.10-1-2024-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tool fix from Arnaldo Carvalho de Melo:
 "Revert a patch causing a regression.

  This made a simple 'perf record -e cycles:pp make -j199' stop working
  on the Ampere ARM64 system Linus uses to test ARM64 kernels".

* tag 'perf-tools-fixes-for-v6.10-1-2024-05-26' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
  Revert "perf parse-events: Prefer sysfs/JSON hardware events over legacy"
2024-05-26 09:54:26 -07:00
Arnaldo Carvalho de Melo
4f1b067359 Revert "perf parse-events: Prefer sysfs/JSON hardware events over legacy"
This reverts commit 617824a7f0.

This made a simple 'perf record -e cycles:pp make -j199' stop working on
the Ampere ARM64 system Linus uses to test ARM64 kernels, as discussed
at length in the threads in the Link tags below.

The fix provided by Ian wasn't acceptable and work to fix this will take
time we don't have at this point, so lets revert this and work on it on
the next devel cycle.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Cc: Ethan Adams <j.ethan.adams@gmail.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: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Tycho Andersen <tycho@tycho.pizza>
Cc: Yang Jihong <yangjihong@bytedance.com>
Link: https://lore.kernel.org/lkml/CAHk-=wi5Ri=yR2jBVk-4HzTzpoAWOgstr1LEvg_-OXtJvXXJOA@mail.gmail.com
Link: https://lore.kernel.org/lkml/CAHk-=wiWvtFyedDNpoV7a8Fq_FpbB+F5KmWK2xPY3QoYseOf_A@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-26 08:41:34 -03:00
Linus Torvalds
9b62e02e63 16 hotfixes, 11 of which are cc:stable.
A few nilfs2 fixes, the remainder are for MM: a couple of selftests fixes,
 various singletons fixing various issues in various parts.
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Merge tag 'mm-hotfixes-stable-2024-05-25-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "16 hotfixes, 11 of which are cc:stable.

  A few nilfs2 fixes, the remainder are for MM: a couple of selftests
  fixes, various singletons fixing various issues in various parts"

* tag 'mm-hotfixes-stable-2024-05-25-09-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/ksm: fix possible UAF of stable_node
  mm/memory-failure: fix handling of dissolved but not taken off from buddy pages
  mm: /proc/pid/smaps_rollup: avoid skipping vma after getting mmap_lock again
  nilfs2: fix potential hang in nilfs_detach_log_writer()
  nilfs2: fix unexpected freezing of nilfs_segctor_sync()
  nilfs2: fix use-after-free of timer for log writer thread
  selftests/mm: fix build warnings on ppc64
  arm64: patching: fix handling of execmem addresses
  selftests/mm: compaction_test: fix bogus test success and reduce probability of OOM-killer invocation
  selftests/mm: compaction_test: fix incorrect write of zero to nr_hugepages
  selftests/mm: compaction_test: fix bogus test success on Aarch64
  mailmap: update email address for Satya Priya
  mm/huge_memory: don't unpoison huge_zero_folio
  kasan, fortify: properly rename memintrinsics
  lib: add version into /proc/allocinfo output
  mm/vmalloc: fix vmalloc which may return null if called with __GFP_NOFAIL
2024-05-25 15:10:33 -07:00
Linus Torvalds
0b32d436c0 Jeff Xu's implementation of the mseal() syscall.
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Merge tag 'mm-stable-2024-05-24-11-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more mm updates from Andrew Morton:
 "Jeff Xu's implementation of the mseal() syscall"

* tag 'mm-stable-2024-05-24-11-49' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  selftest mm/mseal read-only elf memory segment
  mseal: add documentation
  selftest mm/mseal memory sealing
  mseal: add mseal syscall
  mseal: wire up mseal syscall
2024-05-24 12:47:28 -07:00
Michael Ellerman
1901472fa8 selftests/mm: fix build warnings on ppc64
Fix warnings like:

  In file included from uffd-unit-tests.c:8:
  uffd-unit-tests.c: In function `uffd_poison_handle_fault':
  uffd-common.h:45:33: warning: format `%llu' expects argument of type
  `long long unsigned int', but argument 3 has type `__u64' {aka `long
  unsigned int'} [-Wformat=]

By switching to unsigned long long for u64 for ppc64 builds.

Link: https://lkml.kernel.org/r/20240521030219.57439-1-mpe@ellerman.id.au
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-24 11:55:06 -07:00
Dev Jain
fb9293b6b0 selftests/mm: compaction_test: fix bogus test success and reduce probability of OOM-killer invocation
Reset nr_hugepages to zero before the start of the test.

If a non-zero number of hugepages is already set before the start of the
test, the following problems arise:

 - The probability of the test getting OOM-killed increases.  Proof:
   The test wants to run on 80% of available memory to prevent OOM-killing
   (see original code comments).  Let the value of mem_free at the start
   of the test, when nr_hugepages = 0, be x.  In the other case, when
   nr_hugepages > 0, let the memory consumed by hugepages be y.  In the
   former case, the test operates on 0.8 * x of memory.  In the latter,
   the test operates on 0.8 * (x - y) of memory, with y already filled,
   hence, memory consumed is y + 0.8 * (x - y) = 0.8 * x + 0.2 * y > 0.8 *
   x.  Q.E.D

 - The probability of a bogus test success increases.  Proof: Let the
   memory consumed by hugepages be greater than 25% of x, with x and y
   defined as above.  The definition of compaction_index is c_index = (x -
   y)/z where z is the memory consumed by hugepages after trying to
   increase them again.  In check_compaction(), we set the number of
   hugepages to zero, and then increase them back; the probability that
   they will be set back to consume at least y amount of memory again is
   very high (since there is not much delay between the two attempts of
   changing nr_hugepages).  Hence, z >= y > (x/4) (by the 25% assumption).
   Therefore, c_index = (x - y)/z <= (x - y)/y = x/y - 1 < 4 - 1 = 3
   hence, c_index can always be forced to be less than 3, thereby the test
   succeeding always.  Q.E.D

Link: https://lkml.kernel.org/r/20240521074358.675031-4-dev.jain@arm.com
Fixes: bd67d5c15c ("Test compaction of mlocked memory")
Signed-off-by: Dev Jain <dev.jain@arm.com>
Cc: <stable@vger.kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Sri Jayaramappa <sjayaram@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-24 11:55:06 -07:00
Dev Jain
9ad665ef55 selftests/mm: compaction_test: fix incorrect write of zero to nr_hugepages
Currently, the test tries to set nr_hugepages to zero, but that is not
actually done because the file offset is not reset after read().  Fix that
using lseek().

Link: https://lkml.kernel.org/r/20240521074358.675031-3-dev.jain@arm.com
Fixes: bd67d5c15c ("Test compaction of mlocked memory")
Signed-off-by: Dev Jain <dev.jain@arm.com>
Cc: <stable@vger.kernel.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Sri Jayaramappa <sjayaram@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-24 11:55:06 -07:00
Dev Jain
d4202e66a4 selftests/mm: compaction_test: fix bogus test success on Aarch64
Patch series "Fixes for compaction_test", v2.

The compaction_test memory selftest introduces fragmentation in memory
and then tries to allocate as many hugepages as possible. This series
addresses some problems.

On Aarch64, if nr_hugepages == 0, then the test trivially succeeds since
compaction_index becomes 0, which is less than 3, due to no division by
zero exception being raised. We fix that by checking for division by
zero.

Secondly, correctly set the number of hugepages to zero before trying
to set a large number of them.

Now, consider a situation in which, at the start of the test, a non-zero
number of hugepages have been already set (while running the entire
selftests/mm suite, or manually by the admin). The test operates on 80%
of memory to avoid OOM-killer invocation, and because some memory is
already blocked by hugepages, it would increase the chance of OOM-killing.
Also, since mem_free used in check_compaction() is the value before we
set nr_hugepages to zero, the chance that the compaction_index will
be small is very high if the preset nr_hugepages was high, leading to a
bogus test success.


This patch (of 3):

Currently, if at runtime we are not able to allocate a huge page, the test
will trivially pass on Aarch64 due to no exception being raised on
division by zero while computing compaction_index.  Fix that by checking
for nr_hugepages == 0.  Anyways, in general, avoid a division by zero by
exiting the program beforehand.  While at it, fix a typo, and handle the
case where the number of hugepages may overflow an integer.

Link: https://lkml.kernel.org/r/20240521074358.675031-1-dev.jain@arm.com
Link: https://lkml.kernel.org/r/20240521074358.675031-2-dev.jain@arm.com
Fixes: bd67d5c15c ("Test compaction of mlocked memory")
Signed-off-by: Dev Jain <dev.jain@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Sri Jayaramappa <sjayaram@akamai.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-24 11:55:05 -07:00
Linus Torvalds
f1f9984fdc RISC-V Patches for the 6.10 Merge Window, Part 2
* The compression format used for boot images is now configurable at
   build time, and these formats are shown in `make help`.
 * access_ok() has been optimized.
 * A pair of performance bugs have been fixed in the uaccess handlers.
 * Various fixes and cleanups, including one for the IMSIC build failure
   and one for the early-boot ftrace illegal NOPs bug.
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Merge tag 'riscv-for-linus-6.10-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - The compression format used for boot images is now configurable at
   build time, and these formats are shown in `make help`

 - access_ok() has been optimized

 - A pair of performance bugs have been fixed in the uaccess handlers

 - Various fixes and cleanups, including one for the IMSIC build failure
   and one for the early-boot ftrace illegal NOPs bug

* tag 'riscv-for-linus-6.10-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix early ftrace nop patching
  irqchip: riscv-imsic: Fixup riscv_ipi_set_virq_range() conflict
  riscv: selftests: Add signal handling vector tests
  riscv: mm: accelerate pagefault when badaccess
  riscv: uaccess: Relax the threshold for fast path
  riscv: uaccess: Allow the last potential unrolled copy
  riscv: typo in comment for get_f64_reg
  Use bool value in set_cpu_online()
  riscv: selftests: Add hwprobe binaries to .gitignore
  riscv: stacktrace: fixed walk_stackframe()
  ftrace: riscv: move from REGS to ARGS
  riscv: do not select MODULE_SECTIONS by default
  riscv: show help string for riscv-specific targets
  riscv: make image compression configurable
  riscv: cpufeature: Fix extension subset checking
  riscv: cpufeature: Fix thead vector hwcap removal
  riscv: rewrite __kernel_map_pages() to fix sleeping in invalid context
  riscv: force PAGE_SIZE linear mapping if debug_pagealloc is enabled
  riscv: Define TASK_SIZE_MAX for __access_ok()
  riscv: Remove PGDIR_SIZE_L3 and TASK_SIZE_MIN
2024-05-24 10:46:35 -07:00
Jeff Xu
a52b4f11a2 selftest mm/mseal read-only elf memory segment
Sealing read-only of elf mapping so it can't be changed by mprotect.

[jeffxu@chromium.org: style change]
  Link: https://lkml.kernel.org/r/20240416220944.2481203-2-jeffxu@chromium.org
[amer.shanawany@gmail.com: fix linker error for inline function]
  Link: https://lkml.kernel.org/r/20240420202346.546444-1-amer.shanawany@gmail.com
[jeffxu@chromium.org: fix compile warning]
  Link: https://lkml.kernel.org/r/20240420003515.345982-2-jeffxu@chromium.org
[jeffxu@chromium.org: fix arm build]
  Link: https://lkml.kernel.org/r/20240502225331.3806279-2-jeffxu@chromium.org
Link: https://lkml.kernel.org/r/20240415163527.626541-6-jeffxu@chromium.org
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Signed-off-by: Amer Al Shanawany <amer.shanawany@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Stephen Röttger <sroettger@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Amer Al Shanawany <amer.shanawany@gmail.com>
Cc: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-23 19:40:27 -07:00
Jeff Xu
4926c7a52d selftest mm/mseal memory sealing
selftest for memory sealing change in mmap() and mseal().

Link: https://lkml.kernel.org/r/20240415163527.626541-4-jeffxu@chromium.org
Signed-off-by: Jeff Xu <jeffxu@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jorge Lucangeli Obes <jorgelo@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Stephen Röttger <sroettger@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Amer Al Shanawany <amer.shanawany@gmail.com>
Cc: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-23 19:40:26 -07:00
Linus Torvalds
66ad4829dd Quite smaller than usual. Notably it includes the fix for the unix
regression you have been notified of in the past weeks.
 The TCP window fix will require some follow-up, already queued.
 
 Current release - regressions:
 
   - af_unix: fix garbage collection of embryos
 
 Previous releases - regressions:
 
   - af_unix: fix race between GC and receive path
 
   - ipv6: sr: fix missing sk_buff release in seg6_input_core
 
   - tcp: remove 64 KByte limit for initial tp->rcv_wnd value
 
   - eth: r8169: fix rx hangup
 
   - eth: lan966x: remove ptp traps in case the ptp is not enabled.
 
   - eth: ixgbe: fix link breakage vs cisco switches.
 
   - eth: ice: prevent ethtool from corrupting the channels.
 
 Previous releases - always broken:
 
   - openvswitch: set the skbuff pkt_type for proper pmtud support.
 
   - tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
 
 Misc:
 
   - a bunch of selftests stabilization patches.
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Quite smaller than usual. Notably it includes the fix for the unix
  regression from the past weeks. The TCP window fix will require some
  follow-up, already queued.

  Current release - regressions:

   - af_unix: fix garbage collection of embryos

  Previous releases - regressions:

   - af_unix: fix race between GC and receive path

   - ipv6: sr: fix missing sk_buff release in seg6_input_core

   - tcp: remove 64 KByte limit for initial tp->rcv_wnd value

   - eth: r8169: fix rx hangup

   - eth: lan966x: remove ptp traps in case the ptp is not enabled

   - eth: ixgbe: fix link breakage vs cisco switches

   - eth: ice: prevent ethtool from corrupting the channels

  Previous releases - always broken:

   - openvswitch: set the skbuff pkt_type for proper pmtud support

   - tcp: Fix shift-out-of-bounds in dctcp_update_alpha()

  Misc:

   - a bunch of selftests stabilization patches"

* tag 'net-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (25 commits)
  r8169: Fix possible ring buffer corruption on fragmented Tx packets.
  idpf: Interpret .set_channels() input differently
  ice: Interpret .set_channels() input differently
  nfc: nci: Fix handling of zero-length payload packets in nci_rx_work()
  net: relax socket state check at accept time.
  tcp: remove 64 KByte limit for initial tp->rcv_wnd value
  net: ti: icssg_prueth: Fix NULL pointer dereference in prueth_probe()
  tls: fix missing memory barrier in tls_init
  net: fec: avoid lock evasion when reading pps_enable
  Revert "ixgbe: Manual AN-37 for troublesome link partners for X550 SFI"
  testing: net-drv: use stats64 for testing
  net: mana: Fix the extra HZ in mana_hwc_send_request
  net: lan966x: Remove ptp traps in case the ptp is not enabled.
  openvswitch: Set the skbuff pkt_type for proper pmtud support.
  selftest: af_unix: Make SCM_RIGHTS into OOB data.
  af_unix: Fix garbage collection of embryos carrying OOB with SCM_RIGHTS
  tcp: Fix shift-out-of-bounds in dctcp_update_alpha().
  selftests/net: use tc rule to filter the na packet
  ipv6: sr: fix memleak in seg6_hmac_init_algo
  af_unix: Update unix_sk(sk)->oob_skb under sk_receive_queue lock.
  ...
2024-05-23 12:49:37 -07:00
Linus Torvalds
e82d2af501 tracing/tools/latency-collector: Fix printf format warnings
- Use the printf format string with %s to take a string instead of taking
   in a string directly.
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Merge tag 'trace-tools-v6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tool fix from Steven Rostedt:
 "Fix printf format warnings in latency-collector.

  Use the printf format string with %s to take a string instead of
  taking in a string directly"

* tag 'trace-tools-v6.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tools/latency-collector: Fix -Wformat-security compile warns
2024-05-23 12:32:15 -07:00
Shuah Khan
df73757cf8 tools/latency-collector: Fix -Wformat-security compile warns
Fix the following -Wformat-security compile warnings adding missing
format arguments:

latency-collector.c: In function ‘show_available’:
latency-collector.c:938:17: warning: format not a string literal and
no format arguments [-Wformat-security]
  938 |                 warnx(no_tracer_msg);
      |                 ^~~~~

latency-collector.c:943:17: warning: format not a string literal and
no format arguments [-Wformat-security]
  943 |                 warnx(no_latency_tr_msg);
      |                 ^~~~~

latency-collector.c: In function ‘find_default_tracer’:
latency-collector.c:986:25: warning: format not a string literal and
no format arguments [-Wformat-security]
  986 |                         errx(EXIT_FAILURE, no_tracer_msg);
      |
                         ^~~~
latency-collector.c: In function ‘scan_arguments’:
latency-collector.c:1881:33: warning: format not a string literal and
no format arguments [-Wformat-security]
 1881 |                                 errx(EXIT_FAILURE, no_tracer_msg);
      |                                 ^~~~

Link: https://lore.kernel.org/linux-trace-kernel/20240404011009.32945-1-skhan@linuxfoundation.org

Cc: stable@vger.kernel.org
Fixes: e23db805da ("tracing/tools: Add the latency-collector to tools directory")
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-23 10:46:01 -04:00
Joe Damato
a61a459f58 testing: net-drv: use stats64 for testing
Testing a network device that has large numbers of bytes/packets may
overflow. Using stats64 when comparing fixes this problem.

I tripped on this while iterating on a qstats patch for mlx5. See below
for confirmation without my added code that this is a bug.

Before this patch (with added debugging output):

$ NETIF=eth0 tools/testing/selftests/drivers/net/stats.py
KTAP version 1
1..4
ok 1 stats.check_pause
ok 2 stats.check_fec
rstat: 481708634 qstat: 666201639514 key: tx-bytes
not ok 3 stats.pkt_byte_sum
ok 4 stats.qstat_by_ifindex

Note the huge delta above ^^^ in the rtnl vs qstats.

After this patch:

$ NETIF=eth0 tools/testing/selftests/drivers/net/stats.py
KTAP version 1
1..4
ok 1 stats.check_pause
ok 2 stats.check_fec
ok 3 stats.pkt_byte_sum
ok 4 stats.qstat_by_ifindex

It looks like rtnl_fill_stats in net/core/rtnetlink.c will attempt to
copy the 64bit stats into a 32bit structure which is probably why this
behavior is occurring.

To show this is happening, you can get the underlying stats that the
stats.py test uses like this:

$ ./cli.py --spec ../../../Documentation/netlink/specs/rt_link.yaml \
           --do getlink --json '{"ifi-index": 7}'

And examine the output (heavily snipped to show relevant fields):

 'stats': {
           'multicast': 3739197,
           'rx-bytes': 1201525399,
           'rx-packets': 56807158,
           'tx-bytes': 492404458,
           'tx-packets': 1200285371,

 'stats64': {
             'multicast': 3739197,
             'rx-bytes': 35561263767,
             'rx-packets': 56807158,
             'tx-bytes': 666212335338,
             'tx-packets': 1200285371,

The stats.py test prior to this patch was using the 'stats' structure
above, which matches the failure output on my system.

Comparing side by side, rx-bytes and tx-bytes, and getting ethtool -S
output:

rx-bytes stats:    1201525399
rx-bytes stats64: 35561263767
rx-bytes ethtool: 36203402638

tx-bytes stats:      492404458
tx-bytes stats64: 666212335338
tx-bytes ethtool: 666215360113

Note that the above was taken from a system with an mlx5 NIC, which only
exposes ndo_get_stats64.

Based on the ethtool output and qstat output, it appears that stats.py
should be updated to use the 'stats64' structure for accurate
comparisons when packet/byte counters get very large.

To confirm that this was not related to the qstats code I was iterating
on, I booted a kernel without my driver changes and re-ran the test
which shows the qstats are skipped (as they don't exist for mlx5):

NETIF=eth0 tools/testing/selftests/drivers/net/stats.py
KTAP version 1
1..4
ok 1 stats.check_pause
ok 2 stats.check_fec
ok 3 stats.pkt_byte_sum # SKIP qstats not supported by the device
ok 4 stats.qstat_by_ifindex # SKIP No ifindex supports qstats

But, fetching the stats using the CLI

$ ./cli.py --spec ../../../Documentation/netlink/specs/rt_link.yaml \
           --do getlink --json '{"ifi-index": 7}'

Shows the same issue (heavily snipped for relevant fields only):

 'stats': {
           'multicast': 105489,
           'rx-bytes': 530879526,
           'rx-packets': 751415,
           'tx-bytes': 2510191396,
           'tx-packets': 27700323,
 'stats64': {
             'multicast': 105489,
             'rx-bytes': 530879526,
             'rx-packets': 751415,
             'tx-bytes': 15395093284,
             'tx-packets': 27700323,

Comparing side by side with ethtool -S on the unmodified mlx5 driver:

tx-bytes stats:    2510191396
tx-bytes stats64: 15395093284
tx-bytes ethtool: 17718435810

Fixes: f0e6c86e4b ("testing: net-drv: add a driver test for stats reporting")
Signed-off-by: Joe Damato <jdamato@fastly.com>
Link: https://lore.kernel.org/r/20240520235850.190041-1-jdamato@fastly.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-23 10:18:29 +02:00
Linus Torvalds
c760b3725e - A series ("kbuild: enable more warnings by default") from Arnd
Bergmann which enables a number of additional build-time warnings.  We
   fixed all the fallout which we could find, there may still be a few
   stragglers.
 
 - Samuel Holland has developed the series "Unified cross-architecture
   kernel-mode FPU API".  This does a lot of consolidation of
   per-architecture kernel-mode FPU usage and enables the use of newer AMD
   GPUs on RISC-V.
 
 - Tao Su has fixed some selftests build warnings in the series
   "Selftests: Fix compilation warnings due to missing _GNU_SOURCE
   definition".
 
 - This pull also includes a nilfs2 fixup from Ryusuke Konishi.
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Merge tag 'mm-nonmm-stable-2024-05-22-17-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more non-mm updates from Andrew Morton:

 - A series ("kbuild: enable more warnings by default") from Arnd
   Bergmann which enables a number of additional build-time warnings. We
   fixed all the fallout which we could find, there may still be a few
   stragglers.

 - Samuel Holland has developed the series "Unified cross-architecture
   kernel-mode FPU API". This does a lot of consolidation of
   per-architecture kernel-mode FPU usage and enables the use of newer
   AMD GPUs on RISC-V.

 - Tao Su has fixed some selftests build warnings in the series
   "Selftests: Fix compilation warnings due to missing _GNU_SOURCE
   definition".

 - This pull also includes a nilfs2 fixup from Ryusuke Konishi.

* tag 'mm-nonmm-stable-2024-05-22-17-30' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (23 commits)
  nilfs2: make block erasure safe in nilfs_finish_roll_forward()
  selftests/harness: use 1024 in place of LINE_MAX
  Revert "selftests/harness: remove use of LINE_MAX"
  selftests/fpu: allow building on other architectures
  selftests/fpu: move FP code to a separate translation unit
  drm/amd/display: use ARCH_HAS_KERNEL_FPU_SUPPORT
  drm/amd/display: only use hard-float, not altivec on powerpc
  riscv: add support for kernel-mode FPU
  x86: implement ARCH_HAS_KERNEL_FPU_SUPPORT
  powerpc: implement ARCH_HAS_KERNEL_FPU_SUPPORT
  LoongArch: implement ARCH_HAS_KERNEL_FPU_SUPPORT
  lib/raid6: use CC_FLAGS_FPU for NEON CFLAGS
  arm64: crypto: use CC_FLAGS_FPU for NEON CFLAGS
  arm64: implement ARCH_HAS_KERNEL_FPU_SUPPORT
  ARM: crypto: use CC_FLAGS_FPU for NEON CFLAGS
  ARM: implement ARCH_HAS_KERNEL_FPU_SUPPORT
  arch: add ARCH_HAS_KERNEL_FPU_SUPPORT
  x86/fpu: fix asm/fpu/types.h include guard
  kbuild: enable -Wcast-function-type-strict unconditionally
  kbuild: enable -Wformat-truncation on clang
  ...
2024-05-22 18:59:29 -07:00
Charlie Jenkins
9d5328eeb1
riscv: selftests: Add signal handling vector tests
Add two tests to check vector save/restore when a signal is received
during a vector routine. One test ensures that a value is not clobbered
during signal handling. The other verifies that vector registers
modified in the signal handler are properly reflected when the signal
handling is complete.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
Reviewed-by: Andy Chiu <andy.chiu@sifive.com>
Tested-by: Andy Chiu <andy.chiu@sifive.com>
Link: https://lore.kernel.org/r/20240403-vector_sigreturn_tests-v1-1-2e68b7a3b8d7@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-05-22 16:12:57 -07:00
Charlie Jenkins
f8ea6ab927
riscv: selftests: Add hwprobe binaries to .gitignore
The cbo and which-cpu hwprobe selftests leave their artifacts in the
kernel tree and end up being tracked by git. Add the binaries to the
hwprobe selftest .gitignore so this no longer happens.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: a29e2a48af ("RISC-V: selftests: Add CBO tests")
Fixes: ef7d6abb2c ("RISC-V: selftests: Add which-cpus hwprobe test")
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20240425-gitignore_hwprobe_artifacts-v1-1-dfc5a20da469@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-05-22 16:12:51 -07:00
Linus Torvalds
5f16eb0549 Char/Misc and other driver subsystem changes for 6.10-rc1
Here is the big set of char/misc and other driver subsystem updates for
 6.10-rc1.  Nothing major here, just lots of new drivers and updates for
 apis and new hardware types.  Included in here are:
   - big IIO driver updates with more devices and drivers added
   - fpga driver updates
   - hyper-v driver updates
   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now
   - binder minor updates
   - mhi driver updates
   - excon driver updates
   - counter driver updates
   - accessability driver updates
   - coresight driver updates
   - other hwtracing driver updates
   - nvmem driver updates
   - slimbus driver updates
   - spmi driver updates
   - other smaller misc and char driver updates
 
 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-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem updates
  for 6.10-rc1. Nothing major here, just lots of new drivers and updates
  for apis and new hardware types. Included in here are:

   - big IIO driver updates with more devices and drivers added

   - fpga driver updates

   - hyper-v driver updates

   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now

   - binder minor updates

   - mhi driver updates

   - excon driver updates

   - counter driver updates

   - accessability driver updates

   - coresight driver updates

   - other hwtracing driver updates

   - nvmem driver updates

   - slimbus driver updates

   - spmi driver updates

   - other smaller misc and char driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (319 commits)
  misc: ntsync: mark driver as "broken" to prevent from building
  spmi: pmic-arb: Add multi bus support
  spmi: pmic-arb: Register controller for bus instead of arbiter
  spmi: pmic-arb: Make core resources acquiring a version operation
  spmi: pmic-arb: Make the APID init a version operation
  spmi: pmic-arb: Fix some compile warnings about members not being described
  dt-bindings: spmi: Deprecate qcom,bus-id
  dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
  spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe()
  spmi: hisi-spmi-controller: Do not override device identifier
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: clean up example
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: fix binding references
  spmi: make spmi_bus_type const
  extcon: adc-jack: Document missing struct members
  extcon: realtek: Remove unused of_gpio.h
  extcon: usbc-cros-ec: Convert to platform remove callback returning void
  extcon: usb-gpio: Convert to platform remove callback returning void
  extcon: max77843: Convert to platform remove callback returning void
  extcon: max3355: Convert to platform remove callback returning void
  extcon: intel-mrfld: Convert to platform remove callback returning void
  ...
2024-05-22 12:26:46 -07:00
Linus Torvalds
29c73fc794 perf tools fixes and improvements for v6.10:
- Add Kan Liang to MAINTAINERS as a perf tools reviewer.
 
 - Add support for using the 'capstone' disassembler library in various tools,
   such as 'perf script' and 'perf annotate'. This is an alternative for the
   use of the 'xed' and 'objdump' disassemblers.
 
 - Data-type profiling improvements:
 
   Resolve types for a->b->c by backtracking the assignments until it finds
   DWARF info for one of those members
 
   Support for global variables, keeping a cache to speed up lookups.
 
   Handle the 'call' instruction, dealing with effects on registers and handling
   its return when tracking register data types.
 
   Handle x86's segment based addressing like %gs:0x28, to support things like
   per CPU variables, the stack canary, etc.
 
   Data-type profiling got big speedups when using capstone for disassembling.
   The objdump outoput parsing method is left as a fallback when capstone fails or
   isn't available. There are patches posted for 6.11 that to use a LLVM
   disassembler.
 
   Support event group display in the TUI when annotating types with --data-type,
   for instance to show memory load and store events for the data type fields.
 
   Optimize the 'perf annotate' data structures, reducing memory usage.
 
   Add a initial 'perf test' for 'perf annotate', checking that a target symbol
   appears on the output, specifying objdump via the command line, etc.
 
 - Integrate the shellcheck utility with the build of perf to allow catching
   shell problems early in areas such as 'perf test', 'perf trace' scrape
   scripts, etc.
 
 - Add 'uretprobe' variant in the 'perf bench uprobe' tool.
 
 - Add script to run instances of 'perf script' in parallel.
 
 - Allow parsing tracepoint names that start with digits, such as
   9p/9p_client_req, etc. Make sure 'perf test' tests it even on systems
   where those tracepoints aren't available.
 
 Vendor Events:
 
 - Update Intel JSON files for Cascade Lake X, Emerald Rapids, Grand Ridge, Ice
   Lake X, Lunar Lake, Meteor Lake, Sapphire Rapids, Sierra Forest, Sky Lake X,
   Sky Lake and Snow Ridge X.  Remove info metrics erroneously in TopdownL1.
 
 - Add AMD's Zen 5 core and uncore events and metrics. Those come from the
   "Performance Monitor Counters for AMD Family 1Ah Model 00h- 0Fh Processors"
   document, with events that capture information on op dispatch, execution and
   retirement, branch prediction, L1 and L2 cache activity, TLB activity, etc.
 
 - Mark L1D_CACHE_INVAL impacted by errata for ARM64's AmpereOne/AmpereOneX.
 
 Miscellaneous:
 
 - Sync header copies with the kernel sources.
 
 - Move some header copies used only for generating translation string tables
   for ioctl cmds and other syscall integer arguments to a new directory under
   tools/perf/beauty/, to separate from copies in tools/include/ that are used
   to build the tools.
 
 - Introduce scrape script for several syscall 'flags'/'mask' arguments.
 
 - Improve cpumap utilization, fixing up pairing of refcounts, using the right
   iterators (perf_cpu_map__for_each_cpu), etc.
 
 - Give more details about raw event encodings in 'perf list', show tracepoint
   encoding in the detailed output.
 
 - Refactor the DSOs handling code, reducing memory usage.
 
 - Document the BPF event modifier and add a 'perf test' for it.
 
 - Improve the event parser, better error messages and add further 'perf test's
   for it.
 
 - Add reference count checking to 'struct comm_str' and 'struct mem_info'.
 
 - Make ARM64's 'perf test' entries for the Neoverse N1 more robust.
 
 - Tweak the ARM64's Coresight 'perf test's.
 
 - Improve ARM64's CoreSight ETM version detection and error reporting.
 
 - Fix handling of symbols when using kcore.
 
 - Fix PAI (Processor Activity Instrumentation) counter names for s390 virtual
   machines in 'perf report'.
 
 - Fix -g/--call-graph option failure in 'perf sched timehist'.
 
 - Add LIBTRACEEVENT_DIR build option to allow building with libtraceevent
   installed in non-standard directories, such as when doing cross builds.
 
 - Various 'perf test' and 'perf bench' fixes.
 
 - Improve 'perf probe' error message for long C++ probe names.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:
 "General:

   - Integrate the shellcheck utility with the build of perf to allow
     catching shell problems early in areas such as 'perf test', 'perf
     trace' scrape scripts, etc

   - Add 'uretprobe' variant in the 'perf bench uprobe' tool

   - Add script to run instances of 'perf script' in parallel

   - Allow parsing tracepoint names that start with digits, such as
     9p/9p_client_req, etc. Make sure 'perf test' tests it even on
     systems where those tracepoints aren't available

   - Add Kan Liang to MAINTAINERS as a perf tools reviewer

   - Add support for using the 'capstone' disassembler library in
     various tools, such as 'perf script' and 'perf annotate'. This is
     an alternative for the use of the 'xed' and 'objdump' disassemblers

  Data-type profiling improvements:

   - Resolve types for a->b->c by backtracking the assignments until it
     finds DWARF info for one of those members

   - Support for global variables, keeping a cache to speed up lookups

   - Handle the 'call' instruction, dealing with effects on registers
     and handling its return when tracking register data types

   - Handle x86's segment based addressing like %gs:0x28, to support
     things like per CPU variables, the stack canary, etc

   - Data-type profiling got big speedups when using capstone for
     disassembling. The objdump outoput parsing method is left as a
     fallback when capstone fails or isn't available. There are patches
     posted for 6.11 that to use a LLVM disassembler

   - Support event group display in the TUI when annotating types with
     --data-type, for instance to show memory load and store events for
     the data type fields

   - Optimize the 'perf annotate' data structures, reducing memory usage

   - Add a initial 'perf test' for 'perf annotate', checking that a
     target symbol appears on the output, specifying objdump via the
     command line, etc

  Vendor Events:

   - Update Intel JSON files for Cascade Lake X, Emerald Rapids, Grand
     Ridge, Ice Lake X, Lunar Lake, Meteor Lake, Sapphire Rapids, Sierra
     Forest, Sky Lake X, Sky Lake and Snow Ridge X. Remove info metrics
     erroneously in TopdownL1

   - Add AMD's Zen 5 core and uncore events and metrics. Those come from
     the "Performance Monitor Counters for AMD Family 1Ah Model 00h- 0Fh
     Processors" document, with events that capture information on op
     dispatch, execution and retirement, branch prediction, L1 and L2
     cache activity, TLB activity, etc

   - Mark L1D_CACHE_INVAL impacted by errata for ARM64's AmpereOne/
     AmpereOneX

  Miscellaneous:

   - Sync header copies with the kernel sources

   - Move some header copies used only for generating translation string
     tables for ioctl cmds and other syscall integer arguments to a new
     directory under tools/perf/beauty/, to separate from copies in
     tools/include/ that are used to build the tools

   - Introduce scrape script for several syscall 'flags'/'mask'
     arguments

   - Improve cpumap utilization, fixing up pairing of refcounts, using
     the right iterators (perf_cpu_map__for_each_cpu), etc

   - Give more details about raw event encodings in 'perf list', show
     tracepoint encoding in the detailed output

   - Refactor the DSOs handling code, reducing memory usage

   - Document the BPF event modifier and add a 'perf test' for it

   - Improve the event parser, better error messages and add further
     'perf test's for it

   - Add reference count checking to 'struct comm_str' and 'struct
     mem_info'

   - Make ARM64's 'perf test' entries for the Neoverse N1 more robust

   - Tweak the ARM64's Coresight 'perf test's

   - Improve ARM64's CoreSight ETM version detection and error reporting

   - Fix handling of symbols when using kcore

   - Fix PAI (Processor Activity Instrumentation) counter names for s390
     virtual machines in 'perf report'

   - Fix -g/--call-graph option failure in 'perf sched timehist'

   - Add LIBTRACEEVENT_DIR build option to allow building with
     libtraceevent installed in non-standard directories, such as when
     doing cross builds

   - Various 'perf test' and 'perf bench' fixes

   - Improve 'perf probe' error message for long C++ probe names"

* tag 'perf-tools-for-v6.10-1-2024-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (260 commits)
  tools lib subcmd: Show parent options in help
  perf pmu: Count sys and cpuid JSON events separately
  perf stat: Don't display metric header for non-leader uncore events
  perf annotate-data: Ensure the number of type histograms
  perf annotate: Fix segfault on sample histogram
  perf daemon: Fix file leak in daemon_session__control
  libsubcmd: Fix parse-options memory leak
  perf lock: Avoid memory leaks from strdup()
  perf sched: Rename 'switches' column header to 'count' and add usage description, options for latency
  perf tools: Ignore deleted cgroups
  perf parse: Allow tracepoint names to start with digits
  perf parse-events: Add new 'fake_tp' parameter for tests
  perf parse-events: pass parse_state to add_tracepoint
  perf symbols: Fix ownership of string in dso__load_vmlinux()
  perf symbols: Update kcore map before merging in remaining symbols
  perf maps: Re-use __maps__free_maps_by_name()
  perf symbols: Remove map from list before updating addresses
  perf tracepoint: Don't scan all tracepoints to test if one exists
  perf dwarf-aux: Fix build with HAVE_DWARF_CFI_SUPPORT
  perf thread: Fixes to thread__new() related to initializing comm
  ...
2024-05-21 15:45:14 -07:00
Kuniyuki Iwashima
e060e433e5 selftest: af_unix: Make SCM_RIGHTS into OOB data.
scm_rights.c covers various test cases for inflight file descriptors
and garbage collector for AF_UNIX sockets.

Currently, SCM_RIGHTS messages are sent with 3-bytes string, and it's
not good for MSG_OOB cases, as SCM_RIGTS cmsg goes with the first 2-bytes,
which is non-OOB data.

Let's send SCM_RIGHTS messages with 1-byte character to pack SCM_RIGHTS
into OOB data.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-21 13:42:08 +02:00
Hangbin Liu
ea63ac1429 selftests/net: use tc rule to filter the na packet
Test arp_ndisc_untracked_subnets use tcpdump to filter the unsolicited
and untracked na messages. It set -e before calling tcpdump. But if
tcpdump filters 0 packet, it will return none zero, and cause the script
to exit.

Instead of using slow tcpdump to capture packets, let's using tc rule
to filter out the na message.

At the same time, fix function setup_v6 which only needs one parameter.
Move all the related helpers from forwarding lib.sh to net lib.sh.

Fixes: 0ea7b0a454 ("selftests: net: arp_ndisc_untracked_subnets: test for arp_accept and accept_untracked_na")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240517010327.2631319-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-05-21 13:25:11 +02:00
Linus Torvalds
3eb3c33c1d asm-generic cleanups for 6.10
These are a few cross-architecture cleanup patches:
 
  - Thomas Zimmermann works on separating fbdev support from the asm/video.h
    contents that may be used by either the old fbdev drivers or the
    newer drm display code.
 
  - Thorsten Blum contributes cleanups for the generic bitops code
    and asm-generic/bug.h
 
  - I remove the orphaned include/asm-generic/page.h header that used to
    included by long-removed mmu-less architectures.
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Merge tag 'asm-generic-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic cleanups from Arnd Bergmann:
 "These are a few cross-architecture cleanup patches:

   - separate out fbdev support from the asm/video.h contents that may
     be used by either the old fbdev drivers or the newer drm display
     code (Thomas Zimmermann)

   - cleanups for the generic bitops code and asm-generic/bug.h
     (Thorsten Blum)

   - remove the orphaned include/asm-generic/page.h header that used to
     be included by long-removed mmu-less architectures (me)"

* tag 'asm-generic-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  arch: Fix name collision with ACPI's video.o
  bug: Improve comment
  asm-generic: remove unused asm-generic/page.h
  arch: Rename fbdev header and source files
  arch: Remove struct fb_info from video helpers
  arch: Select fbdev helpers with CONFIG_VIDEO
  bitops: Change function return types from long to int
2024-05-20 15:18:34 -07:00
Linus Torvalds
70ec81c2e2 linux_kselftest-next-6.10-rc1-fixes
This kselftest fixes update for Linux 6.10-rc1 consists of
 reverts framework change to add D_GNU_SOURCE to KHDR_INCLUDES
 to Makefile, lib.mk, and kselftest_harness.h and follow-on
 changes to cgroup and sgx test as they are causing build
 failures and warnings.
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Merge tag 'linux_kselftest-next-6.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "Revert framework change to add D_GNU_SOURCE to KHDR_INCLUDES to
  Makefile, lib.mk, and kselftest_harness.h and follow-on changes to
  cgroup and sgx test as they are causing build failures and warnings"

* tag 'linux_kselftest-next-6.10-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  Revert "selftests/cgroup: Drop define _GNU_SOURCE"
  Revert "selftests/sgx: Include KHDR_INCLUDES in Makefile"
  Revert "selftests: Compile kselftest headers with -D_GNU_SOURCE"
2024-05-20 14:49:39 -07:00
Shuah Khan
a97853f25b Revert "selftests/cgroup: Drop define _GNU_SOURCE"
This reverts commit c1457d9aad.

The framework change to add D_GNU_SOURCE to KHDR_INCLUDES
to Makefile, lib.mk, and kselftest_harness.h is reverted
as it is causing build failures and warnings.

Revert this change as this change depends on the framework
change.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-05-20 09:00:15 -06:00
Shuah Khan
3da1640235 Revert "selftests/sgx: Include KHDR_INCLUDES in Makefile"
This reverts commit 2c3b8f8f37.

The framework change to add D_GNU_SOURCE to KHDR_INCLUDES
to Makefile, lib.mk, and kselftest_harness.h is reverted
as it is causing build failures and warnings.

Revert this change as this change depends on the framework
change.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-05-20 09:00:06 -06:00
Shuah Khan
cee27ae5f1 Revert "selftests: Compile kselftest headers with -D_GNU_SOURCE"
This reverts commit daef47b89e.

This framework change to add D_GNU_SOURCE to KHDR_INCLUDES
to Makefile, lib.mk, and kselftest_harness.h is causing build
failures and warnings.

Revert this change.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-05-20 08:59:58 -06:00
Taehee Yoo
cc563e7498 selftests: net: kill smcrouted in the cleanup logic in amt.sh
The amt.sh requires smcrouted for multicasting routing.
So, it starts smcrouted before forwarding tests.
It must be stopped after all tests, but it isn't.

To fix this issue, it kills smcrouted in the cleanup logic.

Fixes: c08e8baea7 ("selftests: add amt interface selftest script")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-20 11:39:07 +01:00
Tao Su
28d2188709 selftests/harness: use 1024 in place of LINE_MAX
Android was seeing a compilation error because its C library does not
define LINE_MAX.  Since LINE_MAX is only used to determine the size of
test_name[] and 1024 should be enough for the test name, use 1024 instead
of LINE_MAX.

Link: https://lkml.kernel.org/r/20240509053113.43462-3-tao1.su@linux.intel.com
Fixes: 38c957f070 ("selftests: kselftest_harness: generate test name once")
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Bongsu Jeon <bongsu.jeon@samsung.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Edward Liaw <edliaw@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Mark Brown <broonie@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Takashi Iwai <tiwai@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-19 14:36:20 -07:00
Tao Su
6bb955fce0 Revert "selftests/harness: remove use of LINE_MAX"
Patch series "Selftests: Fix compilation warnings due to missing
_GNU_SOURCE definition", v2.

Since kselftest_harness.h introduces asprintf()[1], many selftests have
compilation warnings or errors due to missing _GNU_SOURCE definitions.

The issue stems from a lack of a LINE_MAX definition in Android (see
commit 38c957f070), which is the reason why asprintf() was introduced. 
We tried adding _GNU_SOURCE definitions to more selftests to fix, but
asprintf() may continue to cause problems, and since it is quite late in
the 6.9 cycle, we would like to revert 8092162335 first to provide
testing for forks[2].

[1] https://lore.kernel.org/all/20240411231954.62156-1-edliaw@google.com
[2] https://lore.kernel.org/linux-kselftest/ZjuA3aY_iHkjP7bQ@google.com


This patch (of 2):

This reverts commit 8092162335.

asprintf() is declared in stdio.h when defining _GNU_SOURCE, but stdio.h
is so common that many files don't define _GNU_SOURCE before including
stdio.h, and defining _GNU_SOURCE after including stdio.h will no longer
take effect, which causes warnings or even errors during compilation in
many selftests.

Revert 'commit 8092162335 ("selftests/harness: remove use of LINE_MAX")'
as that came in quite late in the 6.9 cycle.

Link: https://lkml.kernel.org/r/20240509053113.43462-1-tao1.su@linux.intel.com
Link: https://lore.kernel.org/linux-kselftest/ZjuA3aY_iHkjP7bQ@google.com/
Link: https://lkml.kernel.org/r/20240509053113.43462-2-tao1.su@linux.intel.com
Fixes: 8092162335 ("selftests/harness: remove use of LINE_MAX")
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Bongsu Jeon <bongsu.jeon@samsung.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Edward Liaw <edliaw@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Mark Brown <broonie@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Takashi Iwai <tiwai@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-19 14:36:20 -07:00
Linus Torvalds
eb6a9339ef Mainly singleton patches, documented in their respective changelogs.
Notable series include:
 
 - Some maintenance and performance work for ocfs2 in Heming Zhao's
   series "improve write IO performance when fragmentation is high".
 
 - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes
   exposed by fstests".
 
 - kfifo header rework from Andy Shevchenko in the series "kfifo: Clean
   up kfifo.h".
 
 - GDB script fixes from Florian Rommel in the series "scripts/gdb: Fixes
   for $lx_current and $lx_per_cpu".
 
 - After much discussion, a coding-style update from Barry Song
   explaining one reason why inline functions are preferred over macros.
   The series is "codingstyle: avoid unused parameters for a function-like
   macro".
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Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-mm updates from Andrew Morton:
 "Mainly singleton patches, documented in their respective changelogs.
  Notable series include:

   - Some maintenance and performance work for ocfs2 in Heming Zhao's
     series "improve write IO performance when fragmentation is high".

   - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes
     exposed by fstests".

   - kfifo header rework from Andy Shevchenko in the series "kfifo:
     Clean up kfifo.h".

   - GDB script fixes from Florian Rommel in the series "scripts/gdb:
     Fixes for $lx_current and $lx_per_cpu".

   - After much discussion, a coding-style update from Barry Song
     explaining one reason why inline functions are preferred over
     macros. The series is "codingstyle: avoid unused parameters for a
     function-like macro""

* tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (62 commits)
  fs/proc: fix softlockup in __read_vmcore
  nilfs2: convert BUG_ON() in nilfs_finish_roll_forward() to WARN_ON()
  scripts: checkpatch: check unused parameters for function-like macro
  Documentation: coding-style: ask function-like macros to evaluate parameters
  nilfs2: use __field_struct() for a bitwise field
  selftests/kcmp: remove unused open mode
  nilfs2: remove calls to folio_set_error() and folio_clear_error()
  kernel/watchdog_perf.c: tidy up kerneldoc
  watchdog: allow nmi watchdog to use raw perf event
  watchdog: handle comma separated nmi_watchdog command line
  nilfs2: make superblock data array index computation sparse friendly
  squashfs: remove calls to set the folio error flag
  squashfs: convert squashfs_symlink_read_folio to use folio APIs
  scripts/gdb: fix detection of current CPU in KGDB
  scripts/gdb: make get_thread_info accept pointers
  scripts/gdb: fix parameter handling in $lx_per_cpu
  scripts/gdb: fix failing KGDB detection during probe
  kfifo: don't use "proxy" headers
  media: stih-cec: add missing io.h
  media: rc: add missing io.h
  ...
2024-05-19 14:02:03 -07:00
Linus Torvalds
a90f1cd105 Turbostat 2024.05.10 update since 2024.04.08:
Survive sparse die id's seen in Linux-6.9.
 
 Handle clustered-uncore topology in new/upcoming hardware.
 
 For non-root use, add ability to see software C-state counters.
 
 Enable reading core and package hardware cstate via perf,
 and prefer perf over the MSR driver access for these counters.
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Merge tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Survive sparse die id's seen in Linux-6.9

 - Handle clustered-uncore topology in new/upcoming hardware

 - For non-root use, add ability to see software C-state counters

 - Enable reading core and package hardware cstate via perf, and prefer
   perf over the MSR driver access for these counters

* tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: version 2024.05.10
  tools/power turbostat: Ignore pkg_cstate_limit when it is not available
  tools/power turbostat: Fix order of strings in pkg_cstate_limit_strings
  tools/power turbostat: Read Package-cstates via perf
  tools/power turbostat: Read Core-cstates via perf
  tools/power turbostat: Avoid possible memory corruption due to sparse topology IDs
  tools/power turbostat: Add columns for clustered uncore frequency
  tools/power turbostat: Enable non-privileged users to read sysfs counters
  tools/power turbostat: Replace _Static_assert with BUILD_BUG_ON
  tools/power turbostat: Add ARL-H support
  tools/power turbostat: Enhance ARL/LNL support
  tools/power turbostat: Survive sparse die_id
  tools/power turbostat: Remember global max_die_id
  tools/power turbostat: Harden probe_intel_uncore_frequency()
  tools/power turbostat: Add "snapshot:" Makefile target
2024-05-19 12:33:28 -07:00
Linus Torvalds
fe0d43f231 Changes:
- Extend the x86 instruction decoder with APX and
    other new instructions
 
  - Misc cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:

 - Extend the x86 instruction decoder with APX and
   other new instructions

 - Misc cleanups

* tag 'perf-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/cstate: Remove unused 'struct perf_cstate_msr'
  perf/x86/rapl: Rename 'maxdie' to nr_rapl_pmu and 'dieid' to rapl_pmu_idx
  x86/insn: Add support for APX EVEX instructions to the opcode map
  x86/insn: Add support for APX EVEX to the instruction decoder logic
  x86/insn: x86/insn: Add support for REX2 prefix to the instruction decoder opcode map
  x86/insn: Add support for REX2 prefix to the instruction decoder logic
  x86/insn: Add misc new Intel instructions
  x86/insn: Add VEX versions of VPDPBUSD, VPDPBUSDS, VPDPWSSD and VPDPWSSDS
  x86/insn: Fix PUSH instruction in x86 instruction decoder opcode map
  x86/insn: Add Key Locker instructions to the opcode map
2024-05-19 11:32:42 -07:00
Linus Torvalds
61307b7be4 The usual shower of singleton fixes and minor series all over MM,
documented (hopefully adequately) in the respective changelogs.  Notable
 series include:
 
 - Lucas Stach has provided some page-mapping
   cleanup/consolidation/maintainability work in the series "mm/treewide:
   Remove pXd_huge() API".
 
 - In the series "Allow migrate on protnone reference with
   MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's
   MPOL_PREFERRED_MANY mode, yielding almost doubled performance in one
   test.
 
 - In their series "Memory allocation profiling" Kent Overstreet and
   Suren Baghdasaryan have contributed a means of determining (via
   /proc/allocinfo) whereabouts in the kernel memory is being allocated:
   number of calls and amount of memory.
 
 - Matthew Wilcox has provided the series "Various significant MM
   patches" which does a number of rather unrelated things, but in largely
   similar code sites.
 
 - In his series "mm: page_alloc: freelist migratetype hygiene" Johannes
   Weiner has fixed the page allocator's handling of migratetype requests,
   with resulting improvements in compaction efficiency.
 
 - In the series "make the hugetlb migration strategy consistent" Baolin
   Wang has fixed a hugetlb migration issue, which should improve hugetlb
   allocation reliability.
 
 - Liu Shixin has hit an I/O meltdown caused by readahead in a
   memory-tight memcg.  Addressed in the series "Fix I/O high when memory
   almost met memcg limit".
 
 - In the series "mm/filemap: optimize folio adding and splitting" Kairui
   Song has optimized pagecache insertion, yielding ~10% performance
   improvement in one test.
 
 - Baoquan He has cleaned up and consolidated the early zone
   initialization code in the series "mm/mm_init.c: refactor
   free_area_init_core()".
 
 - Baoquan has also redone some MM initializatio code in the series
   "mm/init: minor clean up and improvement".
 
 - MM helper cleanups from Christoph Hellwig in his series "remove
   follow_pfn".
 
 - More cleanups from Matthew Wilcox in the series "Various page->flags
   cleanups".
 
 - Vlastimil Babka has contributed maintainability improvements in the
   series "memcg_kmem hooks refactoring".
 
 - More folio conversions and cleanups in Matthew Wilcox's series
 
 	"Convert huge_zero_page to huge_zero_folio"
 	"khugepaged folio conversions"
 	"Remove page_idle and page_young wrappers"
 	"Use folio APIs in procfs"
 	"Clean up __folio_put()"
 	"Some cleanups for memory-failure"
 	"Remove page_mapping()"
 	"More folio compat code removal"
 
 - David Hildenbrand chipped in with "fs/proc/task_mmu: convert hugetlb
   functions to work on folis".
 
 - Code consolidation and cleanup work related to GUP's handling of
   hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2".
 
 - Rick Edgecombe has developed some fixes to stack guard gaps in the
   series "Cover a guard gap corner case".
 
 - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the series
   "mm/ksm: fix ksm exec support for prctl".
 
 - Baolin Wang has implemented NUMA balancing for multi-size THPs.  This
   is a simple first-cut implementation for now.  The series is "support
   multi-size THP numa balancing".
 
 - Cleanups to vma handling helper functions from Matthew Wilcox in the
   series "Unify vma_address and vma_pgoff_address".
 
 - Some selftests maintenance work from Dev Jain in the series
   "selftests/mm: mremap_test: Optimizations and style fixes".
 
 - Improvements to the swapping of multi-size THPs from Ryan Roberts in
   the series "Swap-out mTHP without splitting".
 
 - Kefeng Wang has significantly optimized the handling of arm64's
   permission page faults in the series
 
 	"arch/mm/fault: accelerate pagefault when badaccess"
 	"mm: remove arch's private VM_FAULT_BADMAP/BADACCESS"
 
 - GUP cleanups from David Hildenbrand in "mm/gup: consistently call it
   GUP-fast".
 
 - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault path to
   use struct vm_fault".
 
 - selftests build fixes from John Hubbard in the series "Fix
   selftests/mm build without requiring "make headers"".
 
 - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the
   series "Improved Memory Tier Creation for CPUless NUMA Nodes".  Fixes
   the initialization code so that migration between different memory types
   works as intended.
 
 - David Hildenbrand has improved follow_pte() and fixed an errant driver
   in the series "mm: follow_pte() improvements and acrn follow_pte()
   fixes".
 
 - David also did some cleanup work on large folio mapcounts in his
   series "mm: mapcount for large folios + page_mapcount() cleanups".
 
 - Folio conversions in KSM in Alex Shi's series "transfer page to folio
   in KSM".
 
 - Barry Song has added some sysfs stats for monitoring multi-size THP's
   in the series "mm: add per-order mTHP alloc and swpout counters".
 
 - Some zswap cleanups from Yosry Ahmed in the series "zswap same-filled
   and limit checking cleanups".
 
 - Matthew Wilcox has been looking at buffer_head code and found the
   documentation to be lacking.  The series is "Improve buffer head
   documentation".
 
 - Multi-size THPs get more work, this time from Lance Yang.  His series
   "mm/madvise: enhance lazyfreeing with mTHP in madvise_free" optimizes
   the freeing of these things.
 
 - Kemeng Shi has added more userspace-visible writeback instrumentation
   in the series "Improve visibility of writeback".
 
 - Kemeng Shi then sent some maintenance work on top in the series "Fix
   and cleanups to page-writeback".
 
 - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in the
   series "Improve anon_vma scalability for anon VMAs".  Intel's test bot
   reported an improbable 3x improvement in one test.
 
 - SeongJae Park adds some DAMON feature work in the series
 
 	"mm/damon: add a DAMOS filter type for page granularity access recheck"
 	"selftests/damon: add DAMOS quota goal test"
 
 - Also some maintenance work in the series
 
 	"mm/damon/paddr: simplify page level access re-check for pageout"
 	"mm/damon: misc fixes and improvements"
 
 - David Hildenbrand has disabled some known-to-fail selftests ni the
   series "selftests: mm: cow: flag vmsplice() hugetlb tests as XFAIL".
 
 - memcg metadata storage optimizations from Shakeel Butt in "memcg:
   reduce memory consumption by memcg stats".
 
 - DAX fixes and maintenance work from Vishal Verma in the series
   "dax/bus.c: Fixups for dax-bus locking".
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Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm updates from Andrew Morton:
 "The usual shower of singleton fixes and minor series all over MM,
  documented (hopefully adequately) in the respective changelogs.
  Notable series include:

   - Lucas Stach has provided some page-mapping cleanup/consolidation/
     maintainability work in the series "mm/treewide: Remove pXd_huge()
     API".

   - In the series "Allow migrate on protnone reference with
     MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's
     MPOL_PREFERRED_MANY mode, yielding almost doubled performance in
     one test.

   - In their series "Memory allocation profiling" Kent Overstreet and
     Suren Baghdasaryan have contributed a means of determining (via
     /proc/allocinfo) whereabouts in the kernel memory is being
     allocated: number of calls and amount of memory.

   - Matthew Wilcox has provided the series "Various significant MM
     patches" which does a number of rather unrelated things, but in
     largely similar code sites.

   - In his series "mm: page_alloc: freelist migratetype hygiene"
     Johannes Weiner has fixed the page allocator's handling of
     migratetype requests, with resulting improvements in compaction
     efficiency.

   - In the series "make the hugetlb migration strategy consistent"
     Baolin Wang has fixed a hugetlb migration issue, which should
     improve hugetlb allocation reliability.

   - Liu Shixin has hit an I/O meltdown caused by readahead in a
     memory-tight memcg. Addressed in the series "Fix I/O high when
     memory almost met memcg limit".

   - In the series "mm/filemap: optimize folio adding and splitting"
     Kairui Song has optimized pagecache insertion, yielding ~10%
     performance improvement in one test.

   - Baoquan He has cleaned up and consolidated the early zone
     initialization code in the series "mm/mm_init.c: refactor
     free_area_init_core()".

   - Baoquan has also redone some MM initializatio code in the series
     "mm/init: minor clean up and improvement".

   - MM helper cleanups from Christoph Hellwig in his series "remove
     follow_pfn".

   - More cleanups from Matthew Wilcox in the series "Various
     page->flags cleanups".

   - Vlastimil Babka has contributed maintainability improvements in the
     series "memcg_kmem hooks refactoring".

   - More folio conversions and cleanups in Matthew Wilcox's series:
	"Convert huge_zero_page to huge_zero_folio"
	"khugepaged folio conversions"
	"Remove page_idle and page_young wrappers"
	"Use folio APIs in procfs"
	"Clean up __folio_put()"
	"Some cleanups for memory-failure"
	"Remove page_mapping()"
	"More folio compat code removal"

   - David Hildenbrand chipped in with "fs/proc/task_mmu: convert
     hugetlb functions to work on folis".

   - Code consolidation and cleanup work related to GUP's handling of
     hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2".

   - Rick Edgecombe has developed some fixes to stack guard gaps in the
     series "Cover a guard gap corner case".

   - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the
     series "mm/ksm: fix ksm exec support for prctl".

   - Baolin Wang has implemented NUMA balancing for multi-size THPs.
     This is a simple first-cut implementation for now. The series is
     "support multi-size THP numa balancing".

   - Cleanups to vma handling helper functions from Matthew Wilcox in
     the series "Unify vma_address and vma_pgoff_address".

   - Some selftests maintenance work from Dev Jain in the series
     "selftests/mm: mremap_test: Optimizations and style fixes".

   - Improvements to the swapping of multi-size THPs from Ryan Roberts
     in the series "Swap-out mTHP without splitting".

   - Kefeng Wang has significantly optimized the handling of arm64's
     permission page faults in the series
	"arch/mm/fault: accelerate pagefault when badaccess"
	"mm: remove arch's private VM_FAULT_BADMAP/BADACCESS"

   - GUP cleanups from David Hildenbrand in "mm/gup: consistently call
     it GUP-fast".

   - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault
     path to use struct vm_fault".

   - selftests build fixes from John Hubbard in the series "Fix
     selftests/mm build without requiring "make headers"".

   - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the
     series "Improved Memory Tier Creation for CPUless NUMA Nodes".
     Fixes the initialization code so that migration between different
     memory types works as intended.

   - David Hildenbrand has improved follow_pte() and fixed an errant
     driver in the series "mm: follow_pte() improvements and acrn
     follow_pte() fixes".

   - David also did some cleanup work on large folio mapcounts in his
     series "mm: mapcount for large folios + page_mapcount() cleanups".

   - Folio conversions in KSM in Alex Shi's series "transfer page to
     folio in KSM".

   - Barry Song has added some sysfs stats for monitoring multi-size
     THP's in the series "mm: add per-order mTHP alloc and swpout
     counters".

   - Some zswap cleanups from Yosry Ahmed in the series "zswap
     same-filled and limit checking cleanups".

   - Matthew Wilcox has been looking at buffer_head code and found the
     documentation to be lacking. The series is "Improve buffer head
     documentation".

   - Multi-size THPs get more work, this time from Lance Yang. His
     series "mm/madvise: enhance lazyfreeing with mTHP in madvise_free"
     optimizes the freeing of these things.

   - Kemeng Shi has added more userspace-visible writeback
     instrumentation in the series "Improve visibility of writeback".

   - Kemeng Shi then sent some maintenance work on top in the series
     "Fix and cleanups to page-writeback".

   - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in
     the series "Improve anon_vma scalability for anon VMAs". Intel's
     test bot reported an improbable 3x improvement in one test.

   - SeongJae Park adds some DAMON feature work in the series
	"mm/damon: add a DAMOS filter type for page granularity access recheck"
	"selftests/damon: add DAMOS quota goal test"

   - Also some maintenance work in the series
	"mm/damon/paddr: simplify page level access re-check for pageout"
	"mm/damon: misc fixes and improvements"

   - David Hildenbrand has disabled some known-to-fail selftests ni the
     series "selftests: mm: cow: flag vmsplice() hugetlb tests as
     XFAIL".

   - memcg metadata storage optimizations from Shakeel Butt in "memcg:
     reduce memory consumption by memcg stats".

   - DAX fixes and maintenance work from Vishal Verma in the series
     "dax/bus.c: Fixups for dax-bus locking""

* tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (426 commits)
  memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order
  selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime
  mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_wp
  mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_fault
  selftests: cgroup: add tests to verify the zswap writeback path
  mm: memcg: make alloc_mem_cgroup_per_node_info() return bool
  mm/damon/core: fix return value from damos_wmark_metric_value
  mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED
  selftests: cgroup: remove redundant enabling of memory controller
  Docs/mm/damon/maintainer-profile: allow posting patches based on damon/next tree
  Docs/mm/damon/maintainer-profile: change the maintainer's timezone from PST to PT
  Docs/mm/damon/design: use a list for supported filters
  Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command
  Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
  selftests/damon: classify tests for functionalities and regressions
  selftests/damon/_damon_sysfs: use 'is' instead of '==' for 'None'
  selftests/damon/_damon_sysfs: find sysfs mount point from /proc/mounts
  selftests/damon/_damon_sysfs: check errors from nr_schemes file reads
  mm/damon/core: initialize ->esz_bp from damos_quota_init_priv()
  selftests/damon: add a test for DAMOS quota goal
  ...
2024-05-19 09:21:03 -07:00
Linus Torvalds
2fc0e7892c Landlock updates for v6.10-rc1
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Merge tag 'landlock-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This brings ioctl control to Landlock, contributed by Günther Noack.
  This also adds him as a Landlock reviewer, and fixes an issue in the
  sample"

* tag 'landlock-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  MAINTAINERS: Add Günther Noack as Landlock reviewer
  fs/ioctl: Add a comment to keep the logic in sync with LSM policies
  MAINTAINERS: Notify Landlock maintainers about changes to fs/ioctl.c
  landlock: Document IOCTL support
  samples/landlock: Add support for LANDLOCK_ACCESS_FS_IOCTL_DEV
  selftests/landlock: Exhaustive test for the IOCTL allow-list
  selftests/landlock: Check IOCTL restrictions for named UNIX domain sockets
  selftests/landlock: Test IOCTLs on named pipes
  selftests/landlock: Test ioctl(2) and ftruncate(2) with open(O_PATH)
  selftests/landlock: Test IOCTL with memfds
  selftests/landlock: Test IOCTL support
  landlock: Add IOCTL access right for character and block devices
  samples/landlock: Fix incorrect free in populate_ruleset_net
2024-05-18 10:48:07 -07:00
Linus Torvalds
f08a1e912d Including fix from Andrii for the issue mentioned in our net-next PR,
the rest is unremarkable.
 
 Current release - regressions:
 
  - virtio_net: fix missed error path rtnl_unlock after control queue
    locking rework
 
 Current release - new code bugs:
 
  - bpf: fix KASAN slab-out-of-bounds in percpu_array_map_gen_lookup,
    caused by missing nested map handling
 
  - drv: dsa: correct initialization order for KSZ88x3 ports
 
 Previous releases - regressions:
 
  - af_packet: do not call packet_read_pending() from tpacket_destruct_skb()
    fix performance regression
 
  - ipv6: fix route deleting failure when metric equals 0, don't assume
    0 means not set / default in this case
 
 Previous releases - always broken:
 
  - bridge: couple of syzbot-driven fixes
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.10-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Current release - regressions:

   - virtio_net: fix missed error path rtnl_unlock after control queue
     locking rework

  Current release - new code bugs:

   - bpf: fix KASAN slab-out-of-bounds in percpu_array_map_gen_lookup,
     caused by missing nested map handling

   - drv: dsa: correct initialization order for KSZ88x3 ports

  Previous releases - regressions:

   - af_packet: do not call packet_read_pending() from
     tpacket_destruct_skb() fix performance regression

   - ipv6: fix route deleting failure when metric equals 0, don't assume
     0 means not set / default in this case

  Previous releases - always broken:

   - bridge: couple of syzbot-driven fixes"

* tag 'net-6.10-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (30 commits)
  selftests: net: local_termination: annotate the expected failures
  net: dsa: microchip: Correct initialization order for KSZ88x3 ports
  MAINTAINERS: net: Update reviewers for TI's Ethernet drivers
  dt-bindings: net: ti: Update maintainers list
  l2tp: fix ICMP error handling for UDP-encap sockets
  net: txgbe: fix to control VLAN strip
  net: wangxun: match VLAN CTAG and STAG features
  net: wangxun: fix to change Rx features
  af_packet: do not call packet_read_pending() from tpacket_destruct_skb()
  virtio_net: Fix missed rtnl_unlock
  netrom: fix possible dead-lock in nr_rt_ioctl()
  idpf: don't skip over ethtool tcp-data-split setting
  dt-bindings: net: qcom: ethernet: Allow dma-coherent
  bonding: fix oops during rmmod
  net/ipv6: Fix route deleting failure when metric equals 0
  selftests/net: reduce xfrm_policy test time
  selftests/bpf: Adjust btf_dump test to reflect recent change in file_operations
  selftests/bpf: Adjust test_access_variable_array after a kernel function name change
  selftests/net/lib: no need to record ns name if it already exist
  net: qrtr: ns: Fix module refcnt
  ...
2024-05-17 18:57:14 -07:00
Linus Torvalds
26aa834ff2 Specific for timerlat:
- Improves the output of timerlat top by adding a missing \n,
   and by avoiding printing color-formatting characters where
   they are translated to regular characters.
 
 - Improves timerlat auto-analysis output by replacing '\t'
   with spaces to avoid copy-and-paste issues when reporting
   problems.
 
 - For timerlat, make the user-space (-u) option the default,
   as it is the most complete test. Add a -k option to use
   the in-kernel workload.
 
 - On timerlat top and hist, add a summary with the overall
   results. For instance, the minimum value for all CPUs,
   the overall average and the maximum value from all CPUs.
 
 - timerlat hist was printing initial values (i.e., 0 as max,
   and ~0 as min) if the trace stopped before the first Ret-User
   event. This problem was fixed by printing the "       - "
   no value string to the output if that was the case.
 
 For all RTLA tools:
 
 - Add a --warm-up <seconds> option, allowing the workload to
   run for <seconds> before starting to collect results.
 
 - Add a --trace-buffer-size option, allowing the user to set
   the tracing buffer size for -t option. This option is mainly
   useful for reducing the trace file. Now rtla depends on
   libtracefs >= 1.6.
 
 - Fix the -t [trace_file] parsing, now it does not require
   the '=' before the option parameter, and better handles the
   multiple ways a user can pass the trace_file.txt
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Merge tag 'trace-tools-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tool updates from Steven Rostedt:
 "Specific for timerlat:

   - Improve the output of timerlat top by adding a missing \n, and by
     avoiding printing color-formatting characters where they are
     translated to regular characters.

   - Improve timerlat auto-analysis output by replacing '\t' with spaces
     to avoid copy-and-paste issues when reporting problems.

   - Make the user-space (-u) option the default, as it is the most
     complete test. Add a -k option to use the in-kernel workload.

   - On timerlat top and hist, add a summary with the overall results.
     For instance, the minimum value for all CPUs, the overall average
     and the maximum value from all CPUs.

   - timerlat hist was printing initial values (i.e., 0 as max, and ~0
     as min) if the trace stopped before the first Ret-User event. This
     problem was fixed by printing the " - " no value string to the
     output if that was the case.

  For all RTLA tools:

   - Add a --warm-up <seconds> option, allowing the workload to run for
     <seconds> before starting to collect results.

   - Add a --trace-buffer-size option, allowing the user to set the
     tracing buffer size for -t option. This option is mainly useful for
     reducing the trace file. Now rtla depends on libtracefs >= 1.6.

   - Fix the -t [trace_file] parsing, now it does not require the '='
     before the option parameter, and better handles the multiple ways a
     user can pass the trace_file.txt"

* tag 'trace-tools-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rtla: Documentation: Fix -t, --trace
  rtla: Fix -t\--trace[=file]
  rtla/timerlat: Fix histogram report when a cpu count is 0
  rtla: Add --trace-buffer-size option
  rtla/timerlat: Make user-space threads the default
  rtla: Add the --warm-up option
  rtla/timerlat: Add a summary for hist mode
  rtla/timerlat: Add a summary for top mode
  rtla/timerlat: Use pretty formatting only on interactive tty
  rtla/auto-analysis: Replace \t with spaces
  rtla/timerlat: Simplify "no value" printing on top
2024-05-17 18:49:18 -07:00
Linus Torvalds
fa3889d970 user-event updates for v6.10:
- Minor update to the user_events interface
   The ABI of creating a user event states that the fields
   are separated by semicolons, and spaces should be ignored.
   But the parsing expected at least one space to be there (which was incorrect).
   Fix the reading of the string to handle fields separated by
   semicolons but no space between them.
 
   This does extend the API sightly as now "field;field" will now be
   parsed and not cause an error. But it should not cause any regressions
   as no logic should expect it to fail.
 
   Note, that the logic that parses the event fields to create the
   trace_event works with no spaces after the semi-colon. It is
   the logic that tests against existing events that is inconsistent.
   This causes registering an event without using spaces to succeed
   if it doesn't exist, but makes the same call that tries to register
   to the same event, but doesn't use spaces, fail.
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Merge tag 'trace-user-events-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing user-event updates from Steven Rostedt:

 - Minor update to the user_events interface

  The ABI of creating a user event states that the fields are separated
  by semicolons, and spaces should be ignored.

  But the parsing expected at least one space to be there (which was
  incorrect). Fix the reading of the string to handle fields separated
  by semicolons but no space between them.

  This does extend the API sightly as now "field;field" will now be
  parsed and not cause an error. But it should not cause any regressions
  as no logic should expect it to fail.

  Note, that the logic that parses the event fields to create the
  trace_event works with no spaces after the semi-colon. It is
  the logic that tests against existing events that is inconsistent.
  This causes registering an event without using spaces to succeed
  if it doesn't exist, but makes the same call that tries to register
  to the same event, but doesn't use spaces, fail.

* tag 'trace-user-events-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  selftests/user_events: Add non-spacing separator check
  tracing/user_events: Fix non-spaced field matching
2024-05-17 18:46:30 -07:00
Linus Torvalds
53683e4080 tracing ring buffer updates for v6.10:
- Add ring_buffer memory mappings
 
   The tracing ring buffer was created based on being mostly used with the
   splice system call. It is broken up into page ordered sub-buffers and the
   reader swaps a new sub-buffer with an existing sub-buffer that's part
   of the write buffer. It then has total access to the swapped out
   sub-buffer and can do copyless movements of the memory into other mediums
   (file system, network, etc).
 
   The buffer is great for passing around the ring buffer contents in the
   kernel, but is not so good for when the consumer is the user space task
   itself.
 
   A new interface is added that allows user space to memory map the ring
   buffer. It will get all the write sub-buffers as well as reader sub-buffer
   (that is not written to). It can send an ioctl to change which sub-buffer
   is the new reader sub-buffer.
 
   The ring buffer is read only to user space. It only needs to call the
   ioctl when it is finished with a sub-buffer and needs a new sub-buffer
   that the writer will not write over.
 
   A self test program was also created for testing and can be used as
   an example for the interface to user space. The libtracefs (external
   to the kernel) also has code that interacts with this, although it is
   disabled until the interface is in a official release. It can be enabled
   by compiling the library with a special flag. This was used for testing
   applications that perform better with the buffer being mapped.
 
   Memory mapped buffers have limitations. The main one is that it can not be
   used with the snapshot logic. If the buffer is mapped, snapshots will be
   disabled. If any logic is set to trigger snapshots on a buffer, that
   buffer will not be allowed to be mapped.
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Merge tag 'trace-ringbuffer-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing ring buffer updates from Steven Rostedt:
 "Add ring_buffer memory mappings.

  The tracing ring buffer was created based on being mostly used with
  the splice system call. It is broken up into page ordered sub-buffers
  and the reader swaps a new sub-buffer with an existing sub-buffer
  that's part of the write buffer. It then has total access to the
  swapped out sub-buffer and can do copyless movements of the memory
  into other mediums (file system, network, etc).

  The buffer is great for passing around the ring buffer contents in the
  kernel, but is not so good for when the consumer is the user space
  task itself.

  A new interface is added that allows user space to memory map the ring
  buffer. It will get all the write sub-buffers as well as reader
  sub-buffer (that is not written to). It can send an ioctl to change
  which sub-buffer is the new reader sub-buffer.

  The ring buffer is read only to user space. It only needs to call the
  ioctl when it is finished with a sub-buffer and needs a new sub-buffer
  that the writer will not write over.

  A self test program was also created for testing and can be used as an
  example for the interface to user space. The libtracefs (external to
  the kernel) also has code that interacts with this, although it is
  disabled until the interface is in a official release. It can be
  enabled by compiling the library with a special flag. This was used
  for testing applications that perform better with the buffer being
  mapped.

  Memory mapped buffers have limitations. The main one is that it can
  not be used with the snapshot logic. If the buffer is mapped,
  snapshots will be disabled. If any logic is set to trigger snapshots
  on a buffer, that buffer will not be allowed to be mapped"

* tag 'trace-ringbuffer-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Add cast to unsigned long addr passed to virt_to_page()
  ring-buffer: Have mmapped ring buffer keep track of missed events
  ring-buffer/selftest: Add ring-buffer mapping test
  Documentation: tracing: Add ring-buffer mapping
  tracing: Allow user-space mapping of the ring-buffer
  ring-buffer: Introducing ring-buffer mapping functions
  ring-buffer: Allocate sub-buffers with __GFP_COMP
2024-05-17 18:40:37 -07:00
Linus Torvalds
70a663205d Probes updates for v6.10:
- tracing/probes: Adding new pseudo-types %pd and %pD support for dumping
   dentry name from 'struct dentry *' and file name from 'struct file *'.
 
 - uprobes: Some performance optimizations have been done.
  . Speed up the BPF uprobe event by delaying the fetching of the uprobe
    event arguments that are not used in BPF.
  . Avoid locking by speculatively checking whether uprobe event is valid.
  . Reduce lock contention by using read/write_lock instead of spinlock for
    uprobe list operation. This improved BPF uprobe benchmark result 43% on
    average.
 
 - rethook: Removes non-fatal warning messages when tracing stack from BPF
   and skip rcu_is_watching() validation in rethook if possible.
 
 - objpool: Optimizing objpool (which is used by kretprobes and fprobe as
   rethook backend storage) by inlining functions and avoid caching nr_cpu_ids
   because it is a const value.
 
 - fprobe: Add entry/exit callbacks types (code cleanup)
 - kprobes: Check ftrace was killed in kprobes if it uses ftrace.
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Merge tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:

 - tracing/probes: Add new pseudo-types %pd and %pD support for dumping
   dentry name from 'struct dentry *' and file name from 'struct file *'

 - uprobes performance optimizations:
    - Speed up the BPF uprobe event by delaying the fetching of the
      uprobe event arguments that are not used in BPF
    - Avoid locking by speculatively checking whether uprobe event is
      valid
    - Reduce lock contention by using read/write_lock instead of
      spinlock for uprobe list operation. This improved BPF uprobe
      benchmark result 43% on average

 - rethook: Remove non-fatal warning messages when tracing stack from
   BPF and skip rcu_is_watching() validation in rethook if possible

 - objpool: Optimize objpool (which is used by kretprobes and fprobe as
   rethook backend storage) by inlining functions and avoid caching
   nr_cpu_ids because it is a const value

 - fprobe: Add entry/exit callbacks types (code cleanup)

 - kprobes: Check ftrace was killed in kprobes if it uses ftrace

* tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  kprobe/ftrace: bail out if ftrace was killed
  selftests/ftrace: Fix required features for VFS type test case
  objpool: cache nr_possible_cpus() and avoid caching nr_cpu_ids
  objpool: enable inlining objpool_push() and objpool_pop() operations
  rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()
  ftrace: make extra rcu_is_watching() validation check optional
  uprobes: reduce contention on uprobes_tree access
  rethook: Remove warning messages printed for finding return address of a frame.
  fprobe: Add entry/exit callbacks types
  selftests/ftrace: add fprobe test cases for VFS type "%pd" and "%pD"
  selftests/ftrace: add kprobe test cases for VFS type "%pd" and "%pD"
  Documentation: tracing: add new type '%pd' and '%pD' for kprobe
  tracing/probes: support '%pD' type for print struct file's name
  tracing/probes: support '%pd' type for print struct dentry's name
  uprobes: add speculative lockless system-wide uprobe filter check
  uprobes: prepare uprobe args buffer lazily
  uprobes: encapsulate preparation of uprobe args buffer
2024-05-17 18:29:30 -07:00
Jakub Kicinski
fe56d6e4a9 selftests: net: local_termination: annotate the expected failures
Vladimir said when adding this test:

  The bridge driver fares particularly badly [...] mainly because
  it does not implement IFF_UNICAST_FLT.

See commit 90b9566aa5 ("selftests: forwarding: add a test for
local_termination.sh").

We don't want to hide the known gaps, but having a test which
always fails prevents us from catching regressions. Report
the cases we know may fail as XFAIL.

Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20240516152513.1115270-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-17 12:26:35 -07:00
Linus Torvalds
ff2632d7d0 powerpc updates for 6.10
- Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.
 
  - Allow per-process DEXCR (Dynamic Execution Control Register) settings via
    prctl, notably NPHIE which controls hashst/hashchk for ROP protection.
 
  - Install powerpc selftests in sub-directories. Note this changes the way
    run_kselftest.sh needs to be invoked for powerpc selftests.
 
  - Change fadump (Firmware Assisted Dump) to better handle memory add/remove.
 
  - Add support for passing additional parameters to the fadump kernel.
 
  - Add support for updating the kdump image on CPU/memory add/remove events.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann,
 Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe Jaillet, Christophe
 Leroy, Colin Ian King, Cédric Le Goater, Dr. David Alan Gilbert, Erhard Furtner,
 Frank Li, GUO Zihua, Ganesh Goudar, Geoff Levand, Ghanshyam Agrawal, Greg Kurz,
 Hari Bathini, Joel Stanley, Justin Stitt, Kunwu Chan, Li Yang, Lidong Zhong,
 Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Matthias Schiffer,
 Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas
 Miehlbradt, Ran Wang, Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta,
 Shrikanth Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
 Jain, Xiaowei Bao, Yang Li, Zhao Chenhui.
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Merge tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.

 - Allow per-process DEXCR (Dynamic Execution Control Register) settings
   via prctl, notably NPHIE which controls hashst/hashchk for ROP
   protection.

 - Install powerpc selftests in sub-directories. Note this changes the
   way run_kselftest.sh needs to be invoked for powerpc selftests.

 - Change fadump (Firmware Assisted Dump) to better handle memory
   add/remove.

 - Add support for passing additional parameters to the fadump kernel.

 - Add support for updating the kdump image on CPU/memory add/remove
   events.

 - Other small features, cleanups and fixes.

Thanks to Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd
Bergmann, Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe
Jaillet, Christophe Leroy, Colin Ian King, Cédric Le Goater, Dr. David
Alan Gilbert, Erhard Furtner, Frank Li, GUO Zihua, Ganesh Goudar, Geoff
Levand, Ghanshyam Agrawal, Greg Kurz, Hari Bathini, Joel Stanley, Justin
Stitt, Kunwu Chan, Li Yang, Lidong Zhong, Madhavan Srinivasan, Mahesh
Salgaonkar, Masahiro Yamada, Matthias Schiffer, Naresh Kamboju, Nathan
Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Miehlbradt, Ran Wang,
Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta, Shrikanth
Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
Jain, Xiaowei Bao, Yang Li, and Zhao Chenhui.

* tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (85 commits)
  powerpc/fadump: Fix section mismatch warning
  powerpc/85xx: fix compile error without CONFIG_CRASH_DUMP
  powerpc/fadump: update documentation about bootargs_append
  powerpc/fadump: pass additional parameters when fadump is active
  powerpc/fadump: setup additional parameters for dump capture kernel
  powerpc/pseries/fadump: add support for multiple boot memory regions
  selftests/powerpc/dexcr: Fix spelling mistake "predicition" -> "prediction"
  KVM: PPC: Book3S HV nestedv2: Fix an error handling path in gs_msg_ops_kvmhv_nestedv2_config_fill_info()
  KVM: PPC: Fix documentation for ppc mmu caps
  KVM: PPC: code cleanup for kvmppc_book3s_irqprio_deliver
  KVM: PPC: Book3S HV nestedv2: Cancel pending DEC exception
  powerpc/xmon: Check cpu id in commands "c#", "dp#" and "dx#"
  powerpc/code-patching: Use dedicated memory routines for patching
  powerpc/code-patching: Test patch_instructions() during boot
  powerpc64/kasan: Pass virtual addresses to kasan_init_phys_region()
  powerpc: rename SPRN_HID2 define to SPRN_HID2_750FX
  powerpc: Fix typos
  powerpc/eeh: Fix spelling of the word "auxillary" and update comment
  macintosh/ams: Fix unused variable warning
  powerpc/Makefile: Remove bits related to the previous use of -mcmodel=large
  ...
2024-05-17 09:05:46 -07:00
Hangbin Liu
988af27636 selftests/net: reduce xfrm_policy test time
The check_random_order test add/get plenty of xfrm rules, which consume
a lot time on debug kernel and always TIMEOUT. Let's reduce the test
loop and see if it works.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Link: https://lore.kernel.org/r/20240514095227.2597730-1-liuhangbin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-16 19:30:12 -07:00
Jakub Kicinski
52d94c180a bpf-for-netdev
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Daniel Borkmann says:

====================
pull-request: bpf 2024-05-17

We've added 7 non-merge commits during the last 2 day(s) which contain
a total of 8 files changed, 20 insertions(+), 9 deletions(-).

The main changes are:

1) Fix KASAN slab-out-of-bounds in percpu_array_map_gen_lookup and add
   BPF selftests to cover this case, from Andrii Nakryiko.
   (Report https://lore.kernel.org/bpf/20240514231155.1004295-1-kuba@kernel.org/)

2) Fix two BPF selftests to adjust for kernel changes after fast-forwarding
   Linus' tree to make BPF CI all green again, from Martin KaFai Lau.

3) Fix libbpf feature detectors when using token_fd by adjusting the
   attribute size for memset to cover the former, also from Andrii Nakryiko.

4) Fix the description of 'src' in ALU instructions for the BPF ISA
   standardization doc, from Puranjay Mohan.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Adjust btf_dump test to reflect recent change in file_operations
  selftests/bpf: Adjust test_access_variable_array after a kernel function name change
  selftests/bpf: add more variations of map-in-map situations
  bpf: save extended inner map info for percpu array maps as well
  MAINTAINERS: Update ARM64 BPF JIT maintainer
  bpf, docs: Fix the description of 'src' in ALU instructions
  libbpf: fix feature detectors when using token_fd
====================

Link: https://lore.kernel.org/r/20240517001600.23703-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-16 17:48:04 -07:00
Martin KaFai Lau
51e2b8d331 selftests/bpf: Adjust btf_dump test to reflect recent change in file_operations
The btf_dump test fails:

test_btf_dump_struct_data:FAIL:file_operations unexpected file_operations: actual '(struct file_operations){
	.owner = (struct module *)0xffffffffffffffff,
	.fop_flags = (fop_flags_t)4294967295,
	.llseek = (loff_t (*)(struct f' != expected '(struct file_operations){
	.owner = (struct module *)0xffffffffffffffff,
	.llseek = (loff_t (*)(struct file *, loff_t, int))0xffffffffffffffff,'

The "fop_flags" is a recent addition to the struct file_operations in
commit 210a03c9d5 ("fs: claw back a few FMODE_* bits")

This patch changes the test_btf_dump_struct_data() to reflect
this change.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20240516164310.2481460-1-martin.lau@linux.dev
2024-05-17 01:50:11 +02:00
Martin KaFai Lau
5405807edd selftests/bpf: Adjust test_access_variable_array after a kernel function name change
After commit 4c3e509ea9 ("sched/balancing: Rename load_balance() => sched_balance_rq()"),
the load_balance kernel function is renamed to sched_balance_rq.

This patch adjusts the fentry program in test_access_variable_array.c
to reflect this kernel function name change.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20240516170140.2689430-1-martin.lau@linux.dev
2024-05-17 01:48:16 +02:00
Linus Torvalds
ea5f6ad9ad platform-drivers-x86 for v6.10-1
Highlights:
  - New drivers/platform/arm64 directory for arm64 embedded-controller drivers
  - New drivers for:
    - Acer Aspire 1 embedded controllers (for arm64 models)
    - ACPI quickstart PNP0C32 buttons
    - Dell All-In-One backlight support (dell-uart-backlight)
    - Lenovo WMI camera buttons
    - Lenovo Yoga Tablet 2 Pro 1380F/L fast charging
    - MeeGoPad ANX7428 Type-C Cross Switch (power sequencing only)
    - MSI WMI sensors (fan speed sensors only for now)
  - Asus WMI:
    - 2024 ROG Mini-LED support
    - MCU powersave support
    - Vivobook GPU MUX support
    - Misc. other improvements
  - Ideapad laptop:
    - Export FnLock LED as LED class device
    - Switch platform profiles using thermal management key
  - Intel drivers:
    - IFS: various improvements
    - PMC: Lunar Lake support
    - SDSI: various improvements
    - TPMI/ISST: various improvements
    - tools: intel-speed-select: various improvements
  - MS Surface drivers:
    - Fan profile switching support
    - Surface Pro thermal sensors support
  - ThinkPad ACPI:
    - Reworked hotkey support to use sparse keymaps
    - Add support for new trackpoint-doubletap, Fn+N and Fn+G hotkeys
  - WMI core:
    - New WMI driver development guide
  - x86 Android tablets:
    - Lenovo Yoga Tablet 2 Pro 1380F/L support
    - Xiaomi MiPad 2 status LED and bezel touch buttons backlight support
  - Miscellaneous cleanups / fixes / improvements
 
 The following is an automated git shortlog grouped by driver:
 
 ACPI:
  -  platform-profile: add platform_profile_cycle()
 
 Add ACPI quickstart button (PNP0C32) driver:
  - Add ACPI quickstart button (PNP0C32) driver
 
 Add lenovo-yoga-tab2-pro-1380-fastcharger driver:
  - Add lenovo-yoga-tab2-pro-1380-fastcharger driver
 
 Add new Dell UART backlight driver:
  - Add new Dell UART backlight driver
 
 Add lenovo WMI camera button driver:
  - Add lenovo WMI camera button driver
 
 Add new MeeGoPad ANX7428 Type-C Cross Switch driver:
  - Add new MeeGoPad ANX7428 Type-C Cross Switch driver
 
 ISST:
  -  Support SST-BF and SST-TF per level
  -  Add missing MODULE_DESCRIPTION
  -  Add dev_fmt
  -  Use in_range() to check package ID validity
  -  Support partitioned systems
  -  Shorten the assignments for power_domain_info
  -  Use local variable for auxdev->dev
 
 MAINTAINERS:
  -  drop Daniel Oliveira Nascimento
 
 arm64:
  -  dts: qcom: acer-aspire1: Add embedded controller
 
 asus-laptop:
  -  Use sysfs_emit() and sysfs_emit_at() to replace sprintf()
 
 asus-wmi:
  -  cleanup main struct to avoid some holes
  -  Add support for MCU powersave
  -  ROG Ally increase wait time, allow MCU powersave
  -  adjust formatting of ppt-<name>() functions
  -  store a min default for ppt options
  -  support toggling POST sound
  -  add support variant of TUF RGB
  -  add support for Vivobook GPU MUX
  -  add support for 2024 ROG Mini-LED
  -  use sysfs_emit() instead of sprintf()
 
 classmate-laptop:
  -  Add missing MODULE_DESCRIPTION()
 
 devm-helpers:
  -  Fix a misspelled cancellation in the comments
 
 dt-bindings:
  -  leds: Add LED_FUNCTION_FNLOCK
  -  platform: Add Acer Aspire 1 EC
 
 hp-wmi:
  -  use sysfs_emit() instead of sprintf()
 
 huawei-wmi:
  -  use sysfs_emit() instead of sprintf()
 
 ideapad-laptop:
  -  switch platform profiles using thermal management key
  -  add FnLock LED class device
  -  add fn_lock_get/set functions
 
 intel-vbtn:
  -  Log event code on unexpected button events
 
 intel/pmc:
  -  Enable S0ix blocker show in Lunar Lake
  -  Add support to show S0ix blocker counter
  -  Update LNL signal status map
 
 msi-laptop:
  -  Use sysfs_emit() to replace sprintf()
 
 p2sb:
  -  Don't init until unassigned resources have been assigned
  -  Make p2sb_get_devfn() return void
 
 platform:
  -  arm64: Add Acer Aspire 1 embedded controller driver
  -  Add ARM64 platform directory
 
 platform/surface:
  -  aggregator: Log critical errors during SAM probing
  -  aggregator_registry: Add support for thermal sensors on the Surface Pro 9
  -  platform_profile: add fan profile switching
 
 platform/x86/amd:
  -  pmc: Add new ACPI ID AMDI000B
  -  pmf: Add new ACPI ID AMDI0105
 
 platform/x86/amd/hsmp:
  -  switch to use device_add_groups()
 
 platform/x86/amd/pmc:
  -  Fix implicit declaration error on i386
  -  Add AMD MP2 STB functionality
 
 platform/x86/fujitsu-laptop:
  -  Replace sprintf() with sysfs_emit()
 
 platform/x86/intel-uncore-freq:
  -  Don't present root domain on error
 
 platform/x86/intel/ifs:
  -  Disable irq during one load stage
  -  trace: display batch num in hex
  -  Classify error scenarios correctly
 
 platform/x86/intel/pmc:
  -  Fix PCH names in comments
 
 platform/x86/intel/sdsi:
  -  Add attribute to read the current meter state
  -  Add in-band BIOS lock support
  -  Combine read and write mailbox flows
  -  Set message size during writes
 
 platform/x86/intel/tpmi:
  -  Add additional TPMI header fields
  -  Align comments in kernel-doc
  -  Check major version change for TPMI Information
  -  Handle error from tpmi_process_info()
 
 quickstart:
  -  Fix race condition when reporting input event
  -  fix Kconfig selects
  -  Miscellaneous improvements
 
 samsung-laptop:
  -  Use sysfs_emit() to replace the old interface sprintf()
 
 think-lmi:
  -  Convert container_of() macros to static inline
 
 thinkpad_acpi:
  -  Use false to set acpi_send_ev to false
  -  Support hotkey to disable trackpoint doubletap
  -  Support for system debug info hotkey
  -  Support for trackpoint doubletap
  -  Simplify known_ev handling
  -  Add mappings for adaptive kbd clipping-tool and cloud keys
  -  Switch to using sparse-keymap helpers
  -  Drop KEY_RESERVED special handling
  -  Use correct keycodes for volume and brightness keys
  -  Change hotkey_reserved_mask initialization
  -  Do not send ACPI netlink events for unknown hotkeys
  -  Move tpacpi_driver_event() call to tpacpi_input_send_key()
  -  Move hkey > scancode mapping to tpacpi_input_send_key()
  -  Drop tpacpi_input_send_key_masked() and hotkey_driver_event()
  -  Always call tpacpi_driver_event() for hotkeys
  -  Move hotkey_user_mask check to tpacpi_input_send_key()
  -  Move special original hotkeys handling out of switch-case
  -  Move adaptive kbd event handling to tpacpi_driver_event()
  -  Make tpacpi_driver_event() return if it handled the event
  -  Do hkey to scancode translation later
  -  Use tpacpi_input_send_key() in adaptive kbd code
  -  Drop ignore_acpi_ev
  -  Drop setting send_/ignore_acpi_ev defaults twice
  -  Provide hotkey_poll_stop_sync() dummy
  -  Take hotkey_mutex during hotkey_exit()
  -  change sprintf() to sysfs_emit()
  -  use platform_profile_cycle()
 
 tools arch x86:
  -  Add dell-uart-backlight-emulator
 
 tools/arch/x86/intel_sdsi:
  -  Add current meter support
  -  Simplify ascii printing
  -  Fix meter_certificate decoding
  -  Fix meter_show display
  -  Fix maximum meter bundle length
 
 tools/power/x86/intel-speed-select:
  -  v1.19 release
  -  Display CPU as None for -1
  -  SST BF/TF support per level
  -  Increase number of CPUs displayed
  -  Present all TRL levels for turbo-freq
  -  Fix display for unsupported levels
  -  Support multiple dies
  -  Increase die count
 
 toshiba_acpi:
  -  Add quirk for buttons on Z830
 
 uv_sysfs:
  -  use sysfs_emit() instead of sprintf()
 
 wmi:
  -  Add MSI WMI Platform driver
  -  Add driver development guide
  -  Mark simple WMI drivers as legacy-free
  -  Avoid returning AE_OK upon unknown error
  -  Support reading/writing 16 bit EC values
 
 x86-android-tablets:
  -  Create LED device for Xiaomi Pad 2 bottom bezel touch buttons
  -  Xiaomi pad2 RGB LED fwnode updates
  -  Pass struct device to init()
  -  Add Lenovo Yoga Tablet 2 Pro 1380F/L data
  -  Unregister devices in reverse order
  -  Add swnode for Xiaomi pad2 indicator LED
  -  Use GPIO_LOOKUP() macro
 
 xiaomi-wmi:
  -  Drop unnecessary NULL checks
  -  Fix race condition when reporting key events
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Merge tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Hans de Goede:

 - New drivers/platform/arm64 directory for arm64 embedded-controller
   drivers

 - New drivers:
    - Acer Aspire 1 embedded controllers (for arm64 models)
    - ACPI quickstart PNP0C32 buttons
    - Dell All-In-One backlight support (dell-uart-backlight)
    - Lenovo WMI camera buttons
    - Lenovo Yoga Tablet 2 Pro 1380F/L fast charging
    - MeeGoPad ANX7428 Type-C Cross Switch (power sequencing only)
    - MSI WMI sensors (fan speed sensors only for now)

 - Asus WMI:
    - 2024 ROG Mini-LED support
    - MCU powersave support
    - Vivobook GPU MUX support
    - Misc. other improvements

 - Ideapad laptop:
    - Export FnLock LED as LED class device
    - Switch platform profiles using thermal management key

 - Intel drivers:
    - IFS: various improvements
    - PMC: Lunar Lake support
    - SDSI: various improvements
    - TPMI/ISST: various improvements
    - tools: intel-speed-select: various improvements

 - MS Surface drivers:
    - Fan profile switching support
    - Surface Pro thermal sensors support

 - ThinkPad ACPI:
    - Reworked hotkey support to use sparse keymaps
    - Add support for new trackpoint-doubletap, Fn+N and Fn+G hotkeys

 - WMI core:
    - New WMI driver development guide

 - x86 Android tablets:
    - Lenovo Yoga Tablet 2 Pro 1380F/L support
    - Xiaomi MiPad 2 status LED and bezel touch buttons backlight
      support

 - Miscellaneous cleanups / fixes / improvements

* tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (128 commits)
  platform/x86: Add new MeeGoPad ANX7428 Type-C Cross Switch driver
  devm-helpers: Fix a misspelled cancellation in the comments
  tools arch x86: Add dell-uart-backlight-emulator
  platform/x86: Add new Dell UART backlight driver
  platform/x86: x86-android-tablets: Create LED device for Xiaomi Pad 2 bottom bezel touch buttons
  platform/x86: x86-android-tablets: Xiaomi pad2 RGB LED fwnode updates
  platform/x86: x86-android-tablets: Pass struct device to init()
  platform/x86/amd: pmc: Add new ACPI ID AMDI000B
  platform/x86/amd: pmf: Add new ACPI ID AMDI0105
  platform/x86: p2sb: Don't init until unassigned resources have been assigned
  platform/surface: aggregator: Log critical errors during SAM probing
  platform/x86: ISST: Support SST-BF and SST-TF per level
  platform/x86/fujitsu-laptop: Replace sprintf() with sysfs_emit()
  tools/power/x86/intel-speed-select: v1.19 release
  tools/power/x86/intel-speed-select: Display CPU as None for -1
  tools/power/x86/intel-speed-select: SST BF/TF support per level
  tools/power/x86/intel-speed-select: Increase number of CPUs displayed
  tools/power/x86/intel-speed-select: Present all TRL levels for turbo-freq
  tools/power/x86/intel-speed-select: Fix display for unsupported levels
  tools/power/x86/intel-speed-select: Support multiple dies
  ...
2024-05-16 09:14:50 -07:00
John Kacur
842fc5b87a rtla: Fix -t\--trace[=file]
The -t option has an optional argument.
The usual case is for a short option to be specified without an '='
and for the long version to be specified with an '='

Various forms of this do not work as expected.
For example:
rtla timerlat hist -T50 -tfile.txt
will result in a truncated file name of "ile.txt"

Another example is that the long form without the '=' will result in the
default file name instead of the requested file name.

This patch properly parses the optional argument with and without '='
and with and without spaces for the short form.

This patch was also tested using -t and --trace without providing a file
name both as the last requested option and with a following long and
short option.

For example:

  rtla timerlat hist -T50 -t -u
  rtla timerlat hist -T50 --trace -u

This fix is applied to both timerlat top and hist
and to osnoise top and hist.

Here is the full testing for rtla timerlat hist.
Before applying the patch

  rtla timerlat hist -T50 -t=file.txt
    Works as expected, "file.txt"

  rtla timerlat hist -T50 -tfile.txt
    Truncated file name "ile.txt"

  rtla timerlat hist -T50 -t file.txt
    Default file name instead of file.txt

  rtla timerlat hist -T50 --trace=file.txt
    Truncated file name "ile.txt"

  rtla timerlat hist -T50 --trace file.txt
    Default file name "timerlat_trace.txt" instead of "file.txt"

After applying the patch:

  rtla timerlat hist -T50 -t=file.txt
    Works as expected, "file.txt"

  rtla timerlat hist -T50 -tfile.txt
    Works as expected, "file.txt"

  rtla timerlat hist -T50 -t file.txt
    Works as expected, "file.txt"

  rtla timerlat hist -T50 --trace=file.txt
    Works as expected, "file.txt"

  rtla timerlat hist -T50 --trace file.txt
    Works as expected, "file.txt"

In addition the following tests were performed to make sure that
the default file name worked as expected including with trailing
options.

  rtla timerlat hist -T50 -t
    Works as expected "timerlat_trace.txt"

  rtla timerlat hist -T50 --trace
    Works as expected "timerlat_trace.txt"

  rtla timerlat hist -T50 -t -u
    Works as expected "timerlat_trace.txt"

  rtla timerlat hist -T50 --trace -u
    Works as expected "timerlat_trace.txt"

Link: https://lkml.kernel.org/r/20240515183024.59985-1-jkacur@redhat.com

Cc: Daniel Bristot de Oliveria <bristot@kernel.org>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-16 16:49:10 +02:00
John Kacur
01b05fc0e5 rtla/timerlat: Fix histogram report when a cpu count is 0
On short runs it is possible to get no samples on a cpu, like this:

  # rtla timerlat hist -u -T50

  Index   IRQ-001   Thr-001   Usr-001   IRQ-002   Thr-002   Usr-002
  2             1         0         0         0         0         0
  33            0         1         0         0         0         0
  36            0         0         1         0         0         0
  49            0         0         0         1         0         0
  52            0         0         0         0         1         0
  over:         0         0         0         0         0         0
  count:        1         1         1         1         1         0
  min:          2        33        36        49        52 18446744073709551615
  avg:          2        33        36        49        52         -
  max:          2        33        36        49        52         0
  rtla timerlat hit stop tracing
    IRQ handler delay:		(exit from idle)	    48.21 us (91.09 %)
    IRQ latency:						    49.11 us
    Timerlat IRQ duration:				     2.17 us (4.09 %)
    Blocking thread:					     1.01 us (1.90 %)
  	               swapper/2:0        		     1.01 us
  ------------------------------------------------------------------------
    Thread latency:					    52.93 us (100%)

  Max timerlat IRQ latency from idle: 49.11 us in cpu 2

Note, the value 18446744073709551615 is the same as ~0.

Fix this by reporting no results for the min, avg and max if the count
is 0.

Link: https://lkml.kernel.org/r/20240510190318.44295-1-jkacur@redhat.com

Cc: stable@vger.kernel.org
Fixes: 1eeb6328e8 ("rtla/timerlat: Add timerlat hist mode")
Suggested-by: Daniel Bristot de Oliveria <bristot@kernel.org>
Signed-off-by: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-16 16:45:40 +02:00
Daniel Bristot de Oliveira
e9a4062e15 rtla: Add --trace-buffer-size option
Add the option allow the users to set a different buffer size for the
trace. For example, in large systems, the user might be interested on
reducing the trace buffer to avoid large tracing files.

The buffer size is specified in kB, and it is only affecting
the tracing instance.

The function trace_set_buffer_size() appears on libtracefs v1.6,
so increase the minimum required version on Makefile.config.

Link: https://lkml.kernel.org/r/e7c9ca5b3865f28e131a49ec3b984fadf2d056c6.1715860611.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: John Kacur <jkacur@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-16 16:44:34 +02:00