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https://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc.git
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https://git.kernel.org/pub/scm/linux/kernel/git/mic/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git
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https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
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https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git
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# Conflicts:
# arch/x86/kvm/x86.c
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https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
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https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
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https://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm.git
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https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
# Conflicts:
# MAINTAINERS
# tools/testing/selftests/net/lib.sh
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https://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git
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https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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https://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git
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https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git
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https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git
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https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git
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https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
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https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
# Conflicts:
# fs/bpf_fs_kfuncs.c
# tools/testing/selftests/filesystems/.gitignore
# tools/testing/selftests/filesystems/Makefile
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reduce flakes
Similar to commit 690043b95c18 ("selftests: drv-net: rss: Add
retries to test_rss_key_indir to reduce flakes"), implement the
retry mechanism for test_rss_context_overlap. This gives the test
more attempts to distribute the flow evenly, as the chance of
flow skewing to one queue is high.
Example failures:
# Check failed 5288 < 7000 traffic on main context (1/2): [2727, 2561, 8961, 6648]
not ok 1 rss_ctx.test_rss_context_overlap
# Check failed 6710 < 7000 traffic on main context (2/2): [9280, 5217, 5358, 1352]
not ok 1 rss_ctx.test_rss_context_overlap
Ran test_rss_context_overlap and test_rss_context_overlap2
over 1,000 consecutive runs with no failures.
Signed-off-by: Zinc Lim <limzhineng2@gmail.com>
Link: https://patch.msgid.link/20260702164932.2832916-1-limzhineng2@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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# New commits in timers/core:
aca60c717492 ("selftests: timers: Partially revert "Remove local NSEC_PER_SEC and USEC_PER_SEC defines"")
f5abf0e07894 ("ntp: Remove tick_length_base, use tick_length directly")
c10c8c1ad90c ("timekeeping: Settle competing time_offset and time_adjust skew")
f5adb6779968 ("timekeeping: Drive time_adjust skew via per-tick ntp_error transfer")
5f6668bf5b06 ("timekeeping: Drive time_offset skew via per-tick ntp_error transfer")
e8bf3955dc2f ("timekeeping: Account for clocksource tick quantisation via NTP")
b7befd6d9120 ("timekeeping: Account for monotonicity adjustment in ntp_error")
79b8bd857bd7 ("MAINTAINERS: Add Miroslav as timekeeping reviewer")
79ced850e549 ("y2038: uapi: Use 64-bit __kernel_old_timespec::tv_nsec on x32")
79bd39c58f2c ("timekeeping: Move the vDSO update declarations into a private header")
6e435911394b ("timekeeping: Fold vdso_time_update_aux() declarations into the generic ifdeffery")
faef65e45a2a ("hrtimer: Remove inclusion of hrtimer_bases.h remove from hrtimer.h")
0c31af3d23e6 ("x86/speculation: Explicitly include linux/types.h")
071993aac72e ("hrtimer: Explicitly include some necessary headers in hrtimer_rearm.h")
95cf8bbadd10 ("hrtimer: Explicitly include linux/hrtimer_bases.h")
73fcec09d162 ("tick: Explicitly include linux/hrtimer_bases.h")
a116c7582d7f ("hrtimer: Move hrtimer_update_function() to hrtimer.c")
d3dc7fabd4c4 ("hrtimer: Move hrtimer_callback_running() to hrtimer_bases.h")
03b5d4c27982 ("hrtimer: Rename hrtimer_defs.h to hrtimer_bases.h")
c4415c993fc2 ("hrtimer: Don't take cpu_base::lock in hrtimer_get_next_event() when hres_active")
1d28a67d496f ("timer_list: Annotate print_cpu() diagnostic reads")
06aba58e5849 ("time/namespace: Validate nanosecond field in proc_timens_set_offset()")
eddfded41965 ("timers/migration: Fix memory leak in tmigr_setup_groups() error path")
f2eee7e31ccd ("timekeeping: Unwind aux clock sysfs children on failure")
3dee6537e728 ("clocksource: Unregister subsystem on device registration failure")
b4b66151a714 ("selftests: timers: leap-a-day: Fix -w option and update usage comment")
b3afded935a8 ("clocksource: Remove unused WATCHDOG_INTERVAL_NS macro")
d8966ca88566 ("hrtimer: Remove unused next_timer argument from __hrtimer_reprogram()")
e2904ddb14a4 ("timekeeping: Document monotonic raw timestamps in snapshots correctly")
a73d7f98e41a ("posix-cpu-timers: Don't abuse lock_task_sighand() in handle_posix_cpu_timers()")
034b5779b85b ("hrtimer: Remove unused clock_base_next_timer_safe()")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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# New commits in locking/futex:
157a9b22ff76 ("selftests/futex: Use thread synchronization helpers instead of usleep()")
86620fb9d37b ("selftests/futex: Provide thread creation and synchronization helpers")
50c121e5a57a ("selftests/futex: Dynamically skip unsupported tests")
90a0286c7d35 ("selftests/futex: Add FUTEX_LOCK_PI owner-exiting coverage")
553bd67a9032 ("selftests/futex: Migrate robust_list to harness")
4f22ba7eee3e ("selftests/futex: Migrate futex_priv_hash to harness")
9b19fbb3a6c5 ("selftests/futex: Migrate futex_numa_mpol to harness")
7fe733f11215 ("selftests/futex: Migrate futex_requeue_pi_signal_restart to harness")
4559deb73828 ("selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness")
b7d837c2d49e ("selftests/futex: Migrate futex_requeue_pi to harness")
d0f7df9bb778 ("selftests/futex: Migrate futex_requeue to harness")
78834d8b9c99 ("selftests/futex: Migrate futex_wait_uninitialized_heap to harness")
dccef66d850b ("selftests/futex: Migrate futex_wait_private_mapped_file to harness")
0d65d1abb5e4 ("selftests/futex: Migrate futex_wait to harness")
a894f6f40332 ("selftests/futex: Correct validation logic in waitv")
e531301dd8fa ("selftests/futex: Migrate functional tests to harness")
dfa2f2378fb1 ("selftests/futex: Remove static keyword from 'head'")
4903ab0c83f0 ("futex: Remove unnecessary NULL check before kvfree()")
d7b2769f8dba ("selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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# New commits in core/rseq:
7148c0a02e09 ("selftests/rseq: Fix spelling of accommodate")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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# New commits in core/entry:
5b6e32ba7b59 ("syscall_user_dispatch: Add kernel.syscall_user_dispatch sysctl")
ee935e8dc757 ("syscall_user_dispatch: Make it configurable in Kconfig")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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In tcp_mmap.c, both child_thread() and main() allocate an EVP_MD_CTX
via EVP_MD_CTX_new() when integrity checking is enabled, but neither
function releases the context. child_thread() misses the free in its
common cleanup block, and main() returns without freeing the context.
This results in a SHA256 context leak on every run that uses the
‑i (integrity) option. Add the missing EVP_MD_CTX_free() calls to
the appropriate cleanup paths to fix the leak.
Fixes: 5c5945dc695c ("selftests/net: Add SHA256 computation over data sent in tcp_mmap")
Signed-off-by: Wang Yan <wangyan01@kylinos.cn>
Link: https://patch.msgid.link/20260702025949.442523-1-wangyan01@kylinos.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In the ensure_file() function, the "not_exist" code path checks whether
$dir exists as a regular file. However, the intent is to verify that the
target file ($file) does not exist, not the $dir. Testing $dir makes the
existence check effectively useless -- it tests the wrong path and thus
never catches the case where the file is unexpectedly present.
Replace $dir with $file so the not_exist verification targets the correct
path.
Link: https://lore.kernel.org/20260706134305.5224-1-a929244872@163.com
Signed-off-by: wang wei <a929244872@163.com>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Kmemleak periodically reports transient false positives for radix tree
nodes allocated through the IDR, for example:
unreferenced object 0xffff0004d6ac4200 (size 576):
comm "tcpeventd", pid 6412
backtrace (crc 335d668a):
kmem_cache_alloc_noprof
radix_tree_node_alloc
radix_tree_extend
idr_get_free
idr_alloc_cyclic
map_create
__sys_bpf
radix_tree_extend() (grow) and radix_tree_shrink() (shrink) repoint
root->xa_head to a new node. If a kmemleak scan has already walked past
root->xa_head, the new head is not reachable from any scanned pointer
until the following scan, so kmemleak reports it as leaked even though it
is live.
This is the same race fixed for the XArray API in commit a1a029bcea59
("XArray: fix kmemleak false positive in xas_shrink()"). The IDR uses the
radix tree API directly and hits it on both the grow and the shrink path,
so mark the new head as a transient leak in both.
Add a matching kmemleak_transient_leak() stub to the radix tree test
harness so the userspace lib/radix-tree.c build keeps building.
Link: https://lore.kernel.org/20260703-radix-tree-v2-1-38bb6efb5f6e@debian.org
Signed-off-by: Breno Leitao <leitao@debian.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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drgn_dump_damon_status is dumping nr_accesses_bp field for future use
case. nr_accesses_bp is not being used for a real purpose, though. Hence
there will be no future test for it. Do not dump it.
Link: https://lore.kernel.org/20260630040812.149729-13-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Non-cooperarive uffd events are inherently racy and can happen in parallel
with other userfaultfd operations.
During event tests in uffd-unit-tests, the uffd monitor calls
UFFDIO_UNREGISTER upon receiving UFFD_EVENT_REMOVE.
In parallel, the faulting_process() verifies that the removed memory is
actually zeroed.
If a verification read wins the race with UFFDIO_UNREGISTER, it causes a
missing fault that uffd monitor would receive after UFFDIO_UNREGISTER is
complete. The monitor resolves the fault using UFFDIO_COPY that fails
with -ENOENT which means that VMA has been changed (see commit
27d02568f529 ("userfaultfd: mcopy_atomic: return -ENOENT when no
compatible VMA found")).
Treat -ENOENT returned by UFFDIO_COPY as non-fatal, the same way -EEXIST
is treated for concurrent faults, and don't fail the test.
Link: https://lore.kernel.org/20260701200932.1470525-1-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Passing a stack-local child_pid to clone() with CLONE_CHILD_CLEARTID is
unsafe: the kernel clears that address when the child exits, which may
happen after the test function has returned and the stack slot has been
reused.
Neither testcase uses the settid/cleartid pointers for synchronization.
Drop CLONE_PARENT_SETTID and CLONE_CHILD_CLEARTID and pass NULL for the
clone tid arguments. Wait for the clone child to exit via tkill in
test_sigsegv_handler_with_different_pkey_for_stack(), matching
test_pkru_sigreturn(), so the detached thread cannot overlap with the next
testcase.
Link: https://lore.kernel.org/20260706081600.3570203-7-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Liam R. Howlett (Oracle) <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add missing pthread_create() return checks in pkey sighandler tests to
avoid hanging in pthread_cond_wait() when thread creation fails.
Link: https://lore.kernel.org/20260706081600.3570203-6-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add missing checks against mmap() return value, replace (void *)-1 with
MAP_FAILED for better readability and consistency.
Link: https://lore.kernel.org/20260706081600.3570203-5-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Use pkey_assert(0) instead of perror("clone") when clone_raw() fails. The
old path only printed an error and continued; the test now exits via
pkey_assert() on failure so it does not hang or proceed with an invalid
child.
Link: https://lore.kernel.org/20260706081600.3570203-4-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add per-test tracing to the pkey signal-handler selftest and use
pkey_assert() for error handling. Each test enables tracing at start and
disables it at end; on failure, pkey_assert() calls abort_hooks() to turn
tracing off so ftrace is not left enabled.
Link: https://lore.kernel.org/20260706081600.3570203-3-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "selftests/mm: refactor pkey helpers and fix mmap error
handling", v10.
The main changes in this series are to refactor shared tracing and
assertion helpers into a common file, unify both pkey selftests on
pkey_assert() and per-test tracing for consistent diagnostics, and add
missing mmap() return checks with MAP_FAILED used throughout for
readability and consistency.
This patch (of 10):
Move pkey selftest debugging helpers into shared code so both pkey
selftests can use the same tracing and abort-hook logic. Also fix
cat_into_file() to print file, not str, in the open() failure message.
Link: https://lore.kernel.org/20260706081600.3570203-1-lihongfu@kylinos.cn
Link: https://lore.kernel.org/20260706081600.3570203-2-lihongfu@kylinos.cn
Signed-off-by: Hongfu Li <lihongfu@kylinos.cn>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reviewed-by: Kevin Brodsky <kevin.brodsky@arm.com>
Tested-by: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Keith Lucas <keith.lucas@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Muhammad Usama Anjum <usama.anjum@collabora.com>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Yury Khrustalev <yury.khrustalev@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The GFP flags in two tests are obviously incorrect. Make the tests
correctly run by updating the GFP flags.
Link: https://lore.kernel.org/all/d9cbb89faa5bdb71d451781d214a51ce8923a83e.camel@perches.com/
Link: https://lore.kernel.org/20260630190843.3563858-17-liam@infradead.org
Signed-off-by: Liam R. Howlett (Oracle) <liam@infradead.org>
Reported-by: Joe Perches <joe@perches.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Chris Mason <clm@meta.com>
Cc: Chuck Lever <cel@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Waiman Long <longman@redhat.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON sysfs interface for DAMOS quota has quite extended since its initial
introduction. The test case for that in DAMON sysfs interface essential
file operations test (sysfs.sh) has not accordingly extended, though.
Extend the test case to test all existing files.
Link: https://lore.kernel.org/20260630141726.92246-8-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON selftest interface essential file operations test (sysfs.sh) is not
testing DAMOS dests/ directory. Add the test.
Link: https://lore.kernel.org/20260630141726.92246-7-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON sysfs interface essential file operations test (sysf.sh) is not
testing DAMOS {core,ops}_filters directories. Add the tests.
Link: https://lore.kernel.org/20260630141726.92246-6-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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DAMON sysfs essential file operations test (sysfs.sh) was extended to test
DAMON probes sysfs directory, by commit 14885da09b0f
("selftests/damon/sysfs.sh: test probes dir"). Unlike other DAMON sysfs
files, it is testing only a single directory case. Extend it for multiple
directories.
Link: https://lore.kernel.org/20260630141726.92246-5-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Writing a non-zero value to a kdamond's 'refresh_ms' sysfs file should
make DAMON periodically update the read-only sysfs files on its own,
without the user writing update keywords such as 'update_schemes_stats' to
the 'state' file. This behavior has no test coverage.
Add a test that starts a kdamond with refresh_ms set and a 'stat' scheme
whose default access pattern matches every monitored region, then polls
the scheme's 'nr_tried' stats file directly, without requesting an update.
The value can become non-zero only via the periodic refresh, so the test
confirms refresh_ms works; with refresh_ms disabled the stat stays zero
and the test fails.
Link: https://lore.kernel.org/20260602131217.2210912-3-linuxoid@gmail.com
Link: https://lore.kernel.org/20260629144927.134237-3-sj@kernel.org
Signed-off-by: Ruslan Valiyev <linuxoid@gmail.com>
Reviewed-by: SJ Park <sj@kernel.org>
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "selftests/damon: test kdamond refresh_ms", v2.
The kdamond 'refresh_ms' sysfs file makes DAMON periodically update its
read-only sysfs files (DAMOS stats, tuned monitoring intervals and the
kdamond pid) on its own, so users don't have to write update keywords such
as 'update_schemes_stats' to the 'state' file. It has no selftest
coverage.
The first patch adds refresh_ms support to the _damon_sysfs.py test
control module. The second adds a test that sets refresh_ms and confirms
a scheme's stats are updated under sysfs without an explicit update
request; the test skips on kernels that predate the refresh_ms file.
Tested on current mainline under a DAMON-enabled kernel: the new test
passes and the existing DAMON selftests show no new failures.
This patch (of 2):
The Kdamond class has no way to set the kdamond-level 'refresh_ms' sysfs
file, which makes DAMON periodically update the read-only sysfs files
(DAMOS stats, tuned monitoring intervals and the kdamond pid) on its own.
Add a 'refresh_ms' parameter to Kdamond. When it is set (including to
zero, to disable the periodic update), write it before turning the kdamond
on, so tests can exercise the auto-update behavior. Leaving it unset
keeps the previous behavior of not touching the file, so callers running
against kernels without the feature are unaffected.
Link: https://lore.kernel.org/20260602131217.2210912-2-linuxoid@gmail.com
Link: https://lore.kernel.org/20260629144927.134237-2-sj@kernel.org
Signed-off-by: Ruslan Valiyev <linuxoid@gmail.com>
Reviewed-by: SJ Park <sj@kernel.org>
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Add a dedicated test at the end of main() that stages memcg_path via sysfs
and verifies its readback. Configure the memcg filter before start(), do
not call commit(), and ignore start() failures so the test does not depend
on CONFIG_MEMCG or cgroup layout. Call stop() for cleanup without
checking its return value.
Link: https://lore.kernel.org/D2B37130D38E09AC+20260601090634.241864-1-niecheng1@uniontech.com
Link: https://lore.kernel.org/20260629144812.134159-3-sj@kernel.org
Signed-off-by: Cheng Nie <niecheng1@uniontech.com>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "selftests/damon: fix memcg_path staging handling", v5.
Fix a bug in _damon_sysfs.py for damos_filter memcg_path setup, and add
a test case of it in sysfs.py.
This patch (of 2):
DamosFilter stores memcg_path for sysfs staging, but the constructor
assigns it with a trailing comma and therefore turns it into a tuple.
Fix the assignment so memcg_path is stored as the intended string. This
makes memcg filter staging and follow-up validation use the written path
correctly.
Link: https://lore.kernel.org/20260629144812.134159-1-sj@kernel.org
Link: https://lore.kernel.org/464AE12D4BC6B6F4+20260601090519.240482-1-niecheng1@uniontech.com
Link: https://lore.kernel.org/20260629144812.134159-2-sj@kernel.org
Signed-off-by: Cheng Nie <niecheng1@uniontech.com>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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'hugeapge_size' in drgn_dump_damon_status.py was a dead elif branch.
$fail_reason in sysfs.sh was undefined, silently emptying the error
message. 'exit' instead of 'exist' in sysfs.sh skipped a file existence
check. 'nohugeapge' in sysfs.py broke an action dict lookup.
Fix other wrong strings in the same files.
Link: https://lore.kernel.org/20260601032314.424013-4-kunwu.chan@linux.dev
Link: https://lore.kernel.org/20260629144648.134092-4-sj@kernel.org
Co-developed-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Kunwu Chan <chentao@kylinos.cn>
Cc: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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The expectation print has wrong operator precedence: '%' binds before the
conditional expression, so the else branch prints 'not met' without the
prefix 'expectation (>= 14) is'. Add parentheses to fix it.
Also, '\n'.join() on the list of ints raises TypeError; convert to str in
the list comprehension.
Link: https://lore.kernel.org/20260601032314.424013-3-kunwu.chan@linux.dev
Link: https://lore.kernel.org/20260629144648.134092-3-sj@kernel.org
Co-developed-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Kunwu Chan <chentao@kylinos.cn>
Cc: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "selftests/damon: misc fixes for test bugs", v3.
This series fixes several bugs in the DAMON selftests. Most are trivial
but makes test output wrong or even silently pass the one test case for
'avail_operation' file existence check.
Patch 1 fixes mutable default arguments in DamonCtx.__init__() that cause
state to leak between test instances.
Patch 2 fixes wrong operator precedence and join TypeError in
damos_tried_regions.py.
Patch 3 fixes several wrong strings that produce dead elif branches,
skipped file existence checks, and broken dict key lookups.
This patch (of 3):
DamonCtx.__init__() uses mutable default values for monitoring_attrs,
targets, and schemes. In Python these are evaluated once at function
definition time, so multiple DamonCtx instances can unintentionally share
the same lists and DamonAttrs instance.
Replace the mutable defaults with None sentinels and initialize the
objects when needed.
Link: https://lore.kernel.org/20260629144648.134092-1-sj@kernel.org
Link: https://lore.kernel.org/20260601032314.424013-2-kunwu.chan@linux.dev
Link: https://lore.kernel.org/20260629144648.134092-2-sj@kernel.org
Co-developed-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Kunwu Chan <chentao@kylinos.cn>
Cc: Wang Lian <lianux.mm@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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