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6025b9135f
linux/lib
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Jakub Kicinski 6025b9135f net: dqs: add NIC stall detector based on BQL 
softnet_data->time_squeeze is sometimes used as a proxy for
host overload or indication of scheduling problems. In practice
this statistic is very noisy and has hard to grasp units -
e.g. is 10 squeezes a second to be expected, or high?

Delaying network (NAPI) processing leads to drops on NIC queues
but also RTT bloat, impacting pacing and CA decisions.
Stalls are a little hard to detect on the Rx side, because
there may simply have not been any packets received in given
period of time. Packet timestamps help a little bit, but
again we don't know if packets are stale because we're
not keeping up or because someone (*cough* cgroups)
disabled IRQs for a long time.

We can, however, use Tx as a proxy for Rx stalls. Most drivers
use combined Rx+Tx NAPIs so if Tx gets starved so will Rx.
On the Tx side we know exactly when packets get queued,
and completed, so there is no uncertainty.

This patch adds stall checks to BQL. Why BQL? Because
it's a convenient place to add such checks, already
called by most drivers, and it has copious free space
in its structures (this patch adds no extra cache
references or dirtying to the fast path).

The algorithm takes one parameter - max delay AKA stall
threshold and increments a counter whenever NAPI got delayed
for at least that amount of time. It also records the length
of the longest stall.

To be precise every time NAPI has not polled for at least
stall thrs we check if there were any Tx packets queued
between last NAPI run and now - stall_thrs/2.

Unlike the classic Tx watchdog this mechanism does not
ignore stalls caused by Tx being disabled, or loss of link.
I don't think the check is worth the complexity, and
stall is a stall, whether due to host overload, flow
control, link down... doesn't matter much to the application.

We have been running this detector in production at Meta
for 2 years, with the threshold of 8ms. It's the lowest
value where false positives become rare. There's still
a constant stream of reported stalls (especially without
the ksoftirqd deferral patches reverted), those who like
their stall metrics to be 0 may prefer higher value.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-03-08 10:23:26 +00:00
..
842 kbuild: trace functions in subdirectories of lib/ 2020-08-10 01:32:59 +09:00
crypto crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init 2023-12-22 12:30:19 +08:00
dim linux/dim: Do nothing if no time delta between samples 2023-05-09 11:06:45 +02:00
fonts powerpc: Use shared font data 2023-10-01 23:09:02 +11:00
kunit kunit: device: Unregister the kunit_bus on shutdown 2024-02-06 17:07:37 -07:00
livepatch selftests/livepatch: better synchronize test_klp_callbacks_busy 2022-06-15 10:29:10 +02:00
lz4 lib: make LZ4_decompress_safe_forceExtDict() static 2022-07-17 17:31:39 -07:00
lzo lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t() 2022-07-29 18:12:34 -07:00
math lib/math/int_log: Replace LGPL-2.1-or-later boilerplate with SPDX identifier 2023-07-09 22:47:50 +01:00
pldmfw lib: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:53 -07:00
raid6 s390/fpu: get rid of MACHINE_HAS_VX 2023-12-11 14:33:07 +01:00
reed_solomon treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_fortify string: Remove strlcpy() 2024-01-19 11:59:11 -08:00
vdso vdso: Improve cmd_vdso_check to check all dynamic relocations 2023-03-21 21:15:34 +01:00
xz arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
zlib_deflate lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH 2023-02-27 17:00:14 -08:00
zlib_dfltcc lib/zlib: remove redundation assignement of avail_in dfltcc_gdht() 2023-02-02 22:50:10 -08:00
zlib_inflate lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
zstd zstd: Fix array-index-out-of-bounds UBSAN warning 2023-11-14 17:12:52 -08:00
.gitignore bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
argv_split.c argv_split: fix kernel-doc warnings 2023-09-19 13:21:33 -07:00
ashldi3.c
ashrdi3.c
asn1_decoder.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
asn1_encoder.c lib: remove redundant assignment to variable ret 2022-01-20 08:52:55 +02:00
assoc_array.c assoc_array: Fix BUG_ON during garbage collect 2022-06-01 18:29:06 -07:00
atomic64_test.c
atomic64.c locking/atomic: atomic64: Remove unusable atomic ops 2021-12-13 10:56:09 +01:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
base64.c lib/base64: RFC4648-compliant base64 encoding 2022-08-02 17:14:47 -06:00
bcd.c
bch.c lib/bch.c: use bitrev instead of internal logic 2023-08-18 10:18:58 -07:00
bitfield_kunit.c lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE 2020-10-16 13:25:14 -06:00
bitmap-str.c lib/bitmap: split-out string-related operations to a separate files 2023-10-14 20:25:22 -07:00
bitmap.c cpumask: add cpumask_weight_andnot() 2024-02-01 13:06:40 +01:00
bitrev.c
bootconfig-data.S bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
bootconfig.c bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
bsearch.c lib/bsearch: Provide __always_inline variant 2020-06-11 15:14:53 +02:00
btree.c btree: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:54 -07:00
bucket_locks.c
bug.c cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG 2023-01-31 15:01:45 +01:00
build_OID_registry
buildid.c ELF: fix all "Elf" typos 2023-04-08 13:45:37 -07:00
bust_spinlocks.c kernel/panic: Drop unblank_screen call 2022-09-01 16:55:35 +02:00
check_signature.c
checksum_kunit.c kunit: Fix again checksum tests on big endian CPUs 2024-02-29 09:16:02 -08:00
checksum.c unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
closure.c closures: CLOSURE_CALLBACK() to fix type punning 2023-11-24 00:29:58 -05:00
clz_ctz.c lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels 2023-08-25 13:22:10 -07:00
clz_tab.c
cmdline_kunit.c treewide: use get_random_{u8,u16}() when possible, part 1 2022-10-11 17:42:58 -06:00
cmdline.c lib/cmdline: avoid page fault in next_arg 2022-09-11 21:55:06 -07:00
cmpdi2.c
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
cpu_rmap.c lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release() 2023-06-07 21:25:00 -07:00
cpumask_kunit.c cpumask: re-introduce constant-sized cpumask optimizations 2023-03-05 14:30:34 -08:00
cpumask.c bitmap patches for v6.7 2023-11-03 07:08:36 -10:00
crc4.c
crc7.c lib/crc7: fix a kernel-doc markup 2021-01-21 14:06:00 -07:00
crc8.c lib: crc8: pointer to data block should be const 2021-05-06 19:24:12 -07:00
crc16.c
crc32.c lib/crc32: Make crc32_be weak for arch override 2022-01-31 11:21:43 +11:00
crc32defs.h
crc32test.c lib/crc32test: correct printed bytes count 2022-01-31 11:21:43 +11:00
crc64-rocksoft.c crypto: add rocksoft 64b crc guard tag framework 2022-03-07 12:48:35 -07:00
crc64.c lib: add rocksoft model crc64 2022-03-07 12:48:35 -07:00
crc-ccitt.c lib: crc_ccitt_false() is identical to crc_itu_t() 2023-12-29 12:22:26 -08:00
crc-itu-t.c crc-itu-t: fix typo in CRC ITU-T polynomial comment 2022-06-07 10:27:38 +02:00
crc-t10dif.c crc-t10dif: clean up some more things 2020-06-18 17:26:43 +10:00
ctype.c
debug_info.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
debug_locks.c locking/lockdep: Improve noinstr vs errors 2021-06-22 13:56:43 +02:00
debugobjects.c debugobjects: Stop accessing objects after releasing hash bucket lock 2023-11-22 10:41:46 +01:00
dec_and_lock.c perf: Fix perf_event_pmu_context serialization 2023-01-31 20:37:18 +01:00
decompress_bunzip2.c lib/decompressors: fix spelling mistakes 2021-07-01 11:06:05 -07:00
decompress_inflate.c decompressor: provide missing prototypes 2023-06-09 17:44:17 -07:00
decompress_unlz4.c lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-01 11:06:06 -07:00
decompress_unlzma.c lib: fix inconsistent indenting in process_bit1() 2021-05-06 19:24:12 -07:00
decompress_unlzo.c lib/decompressors: remove set but not used variabled 'level' 2021-07-01 11:06:06 -07:00
decompress_unxz.c arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
decompress_unzstd.c decompressor: provide missing prototypes 2023-06-09 17:44:17 -07:00
decompress.c lib: Add zstd support to decompress 2020-07-31 11:49:08 +02:00
devmem_is_allowed.c lib: devmem_is_allowed: include linux/io.h 2023-06-09 17:44:15 -07:00
devres.c devres: show which resource was invalid in __devm_ioremap_resource() 2023-06-23 17:04:04 -07:00
dhry_1.c lib: dhry: fix sleeping allocations inside non-preemptable section 2023-07-08 09:29:32 -07:00
dhry_2.c lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_run.c lib: dhry: fix unstable smp_processor_id(_) usage 2023-03-23 17:18:35 -07:00
dhry.h lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
digsig.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
dump_stack.c printk: rename cpulock functions 2022-04-22 21:30:57 +02:00
dynamic_debug.c dyndbg: add source filename to prefix 2023-08-04 15:28:41 +02:00
dynamic_queue_limits.c net: dqs: add NIC stall detector based on BQL 2024-03-08 10:23:26 +00:00
earlycpio.c lib: move from strlcpy with unused retval to strscpy 2022-09-11 21:55:10 -07:00
errname.c parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes 2023-11-25 09:43:18 +01:00
error-inject.c lib: error-inject: remove error checking for debugfs_create_dir() 2023-08-18 10:18:55 -07:00
errseq.c kernel.h: split out mathematical helpers 2020-12-15 22:46:15 -08:00
extable.c sparc32: switch to generic extables 2021-01-03 20:05:18 -05:00
fault-inject-usercopy.c lib, include/linux: add usercopy failure capability 2020-10-16 11:11:22 -07:00
fault-inject.c fault-inject: allow configuration via configfs 2023-04-13 07:38:54 -06:00
fdt_addresses.c libfdt: include fdt_addresses.c 2020-01-08 16:59:19 +00:00
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit_benchmark.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
find_bit.c cpumask: introduce for_each_cpu_or 2023-03-19 10:02:04 -07:00
flex_proportions.c flex_proportions: Disable preemption entering the write section. 2022-09-19 14:35:08 +02:00
fortify_kunit.c fortify: test: Use kunit_device 2023-12-18 13:28:08 -07:00
fw_table.c cxl for v6.8 2024-01-18 16:22:43 -08:00
gen_crc32table.c
gen_crc64table.c lib: add rocksoft model crc64 2022-03-07 12:48:35 -07:00
genalloc.c Devicetree include cleanups for v6.6: 2023-08-30 17:04:28 -07:00
generic-radix-tree.c lib/generic-radix-tree.c: Add peek_prev() 2023-10-19 14:47:33 -04:00
glob.c lib: remove back_str initialization 2022-04-29 14:38:01 -07:00
globtest.c
group_cpus.c lib/group_cpus.c: avoid acquiring cpu hotplug lock in group_cpus_evenly 2023-12-06 16:12:46 -08:00
hashtable_test.c lib/hashtable_test.c: add test for the hashtable structure 2023-02-08 14:28:17 -07:00
hexdump.c hex2bin: fix access beyond string end 2022-04-27 10:57:33 -07:00
hweight.c
idr.c ida: Fix crash in ida_free when the bitmap is empty 2023-12-21 10:02:28 -08:00
inflate.c
interval_tree_test.c
interval_tree.c interval-tree: Add a utility to iterate over spans in an interval tree 2022-11-29 16:34:15 -04:00
iomap_copy.c
iomap.c kmsan: add iomap support 2022-10-03 14:03:21 -07:00
iommu-helper.c
iov_iter.c iov_iter: get rid of 'copy_mc' flag 2024-03-06 10:52:12 +01:00
irq_poll.c lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead() 2022-04-13 21:32:21 +02:00
irq_regs.c
is_signed_type_kunit.c lib: assume char is unsigned 2022-11-19 00:56:15 +01:00
is_single_threaded.c
kasprintf.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
Kconfig lib/stackdepot: use fixed-sized slots for stack records 2023-12-10 16:51:44 -08:00
Kconfig.debug lib/Kconfig.debug: TEST_IOV_ITER depends on MMU 2024-02-20 14:20:48 -08:00
Kconfig.kasan Many singleton patches against the MM code. The patch series which 2024-01-09 11:18:47 -08:00
Kconfig.kcsan Kernel concurrency sanitizer (KCSAN) updates for v6.3 2023-02-25 13:02:20 -08:00
Kconfig.kfence mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile 2023-12-05 11:14:40 +01:00
Kconfig.kgdb parisc: Convert PDC console to an early console 2022-10-11 12:01:24 +02:00
Kconfig.kmsan mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile 2023-12-05 11:14:40 +01:00
Kconfig.ubsan ubsan: Clarify Kconfig text for CONFIG_UBSAN_TRAP 2023-07-17 16:05:19 -07:00
kfifo.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
klist.c
kobject_uevent.c kobject: Replace strlcpy with strscpy 2023-09-22 09:50:56 -07:00
kobject.c Revert "kobject: Remove redundant checks for whether ktype is NULL" 2024-02-08 16:39:25 +00:00
kstrtox.c kstrtox: consistently use _tolower() 2023-08-21 13:46:25 -07:00
kstrtox.h lib: vsprintf: Fix handling of number field widths in vsscanf 2021-05-19 15:05:11 +02:00
kunit_iov_iter.c iov_iter: Kunit tests for page extraction 2023-09-09 15:11:49 -07:00
libcrc32c.c libcrc32c: remove crc32c_impl 2023-04-17 18:01:23 +02:00
linear_ranges.c lib: add linear range get selector within 2021-08-13 18:37:38 +02:00
list_debug.c list: Introduce CONFIG_LIST_HARDENED 2023-08-15 14:57:25 -07:00
list_sort.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
list-test.c list: test: Test the klist structure 2023-03-31 09:21:35 -06:00
llist.c llist: add llist_del_first_this() 2023-10-16 12:44:06 -04:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c lockdep/selftests: Use SBRM APIs for wait context tests 2023-07-26 12:29:13 +02:00
lockref.c lockref: stop doing cpu_relax in the cmpxchg loop 2023-01-13 14:35:38 -06:00
logic_iomem.c lib/logic_iomem: correct fallback config references 2022-03-11 10:42:56 +01:00
logic_pio.c minmax: add in_range() macro 2023-08-24 16:20:18 -07:00
lru_cache.c lru_cache: remove unused lc_private, lc_set, lc_index_of 2022-11-22 19:38:39 -07:00
lshrdi3.c
lwq.c lib: add light-weight queuing mechanism. 2023-10-16 12:44:06 -04:00
Makefile cxl for v6.7 2023-11-04 16:20:36 -10:00
maple_tree.c maple_tree: avoid checking other gaps after getting the largest gap 2023-12-20 14:48:14 -08:00
memcat_p.c
memcpy_kunit.c kunit: memcpy: Mark tests as slow using test attributes 2023-07-26 13:29:28 -06:00
memory-notifier-error-inject.c
memregion.c lib/memregion.c: include memregion.h 2020-09-26 10:33:57 -07:00
memweight.c
muldi3.c
net_utils.c mac_pton: Clean up the header inclusions 2023-06-06 13:18:32 +02:00
netdev-notifier-error-inject.c
nlattr.c netlink: add nla be16/32 types to minlen array 2024-02-22 19:01:55 -08:00
nmi_backtrace.c nmi_backtrace: allow excluding an arbitrary CPU 2023-08-18 10:19:00 -07:00
notifier-error-inject.c lib: remove error checking for debugfs_create_dir() 2023-08-18 10:18:55 -07:00
notifier-error-inject.h
objagg.c lib: objagg: Use the bitmap API when applicable 2021-12-24 14:54:29 -08:00
objpool.c lib: objpool: fix head overrun on RK3588 SBC 2023-12-01 14:53:55 +09:00
of-reconfig-notifier-error-inject.c
oid_registry.c lib/oid_registry.c: remove redundant assignment to variable num 2022-11-18 13:55:06 -08:00
once.c once: rename _SLOW to _SLEEPABLE 2022-10-03 17:34:32 -07:00
overflow_kunit.c overflow: Replace fake root_device with kunit_device 2023-12-18 13:28:08 -07:00
packing.c lib: packing: remove MODULE_LICENSE in non-modules 2023-03-09 23:08:04 -08:00
parman.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
parser.c lib: parser: update documentation for match_NUMBER functions 2023-03-02 21:54:22 -08:00
pci_iomap.c pci_iounmap'2: Electric Boogaloo: try to make sense of it all 2021-09-19 17:13:35 -07:00
percpu_counter.c percpu_counter: extend _limited_add() to negative amounts 2023-10-18 14:34:14 -07:00
percpu_test.c
percpu-refcount.c percpu-refcount: Use call_rcu_hurry() for atomic switch 2022-11-30 13:16:40 -08:00
plist.c
pm-notifier-error-inject.c
polynomial.c lib: add generic polynomial calculation 2022-05-22 11:32:30 -07:00
radix-tree.c radix tree: remove unused variable 2023-08-21 13:07:22 -07:00
radix-tree.h radix-tree: move declarations to header 2023-06-12 11:31:50 -07:00
random32.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
ratelimit.c ratelimit: Fix data-races in ___ratelimit(). 2022-08-24 13:46:57 +01:00
rbtree_test.c augmented rbtree: add new RB_DECLARE_CALLBACKS_MAX macro 2019-09-25 17:51:39 -07:00
rbtree.c lib/rbtree: use '+' instead of '|' for setting color. 2023-04-18 16:39:33 -07:00
rcuref.c locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath() 2023-10-10 10:14:27 +02:00
ref_tracker.c lib/ref_tracker: remove warnings in case of allocation failure 2023-06-05 15:28:42 -07:00
refcount.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
rhashtable.c rhashtable: Allow rhashtable to be used from irq-safe contexts 2022-12-09 10:42:56 +00:00
sbitmap.c sbitmap: remove stale comment in sbq_calc_wake_batch 2024-01-15 07:23:50 -07:00
scatterlist.c scatterlist: add missing function params to kernel-doc 2023-09-19 13:21:33 -07:00
seq_buf.c seq_buf: Fix kernel documentation 2024-02-15 12:17:28 -05:00
sg_pool.c lib/sg_pool: change module_init(sg_pool_init) to subsys_initcall 2022-09-23 16:46:19 +02:00
sg_split.c
siphash_kunit.c siphash: Convert selftest to KUnit 2022-11-01 10:04:52 -07:00
siphash.c SPDX changes for 5.19-rc1 2022-06-03 10:34:34 -07:00
slub_kunit.c linux-kselftest-kunit-next-6.2-rc1 2022-12-12 16:42:57 -08:00
smp_processor_id.c lib/smp_processor_id: fix imbalanced instrumentation_end() call 2022-07-17 17:31:41 -07:00
sort.c lib/sort: Add priv pointer to swap function 2022-03-17 20:17:18 -07:00
stackdepot.c stackdepot: use variable size records for non-evictable entries 2024-02-23 17:27:12 -08:00
stackinit_kunit.c kernel/range: Uplevel the cxl subsystem's range_contains() helper 2023-02-10 17:32:37 -08:00
stmp_device.c
strcat_kunit.c string: Add Kunit tests for strcat() family 2023-05-16 14:08:02 -07:00
string_helpers.c lib/string_helpers: string_get_size() now returns characters wrote 2023-09-11 23:59:47 -04:00
string.c string: Remove strlcpy() 2024-01-19 11:59:11 -08:00
strncpy_from_user.c lib/strn*,objtool: Enforce user_access_begin() rules 2022-04-19 21:58:47 +02:00
strnlen_user.c lib/strn*,objtool: Enforce user_access_begin() rules 2022-04-19 21:58:47 +02:00
strscpy_kunit.c fortify: Short-circuit known-safe calls to strscpy() 2022-11-01 10:04:52 -07:00
syscall.c sched: Change task_struct::state 2021-06-18 11:43:09 +02:00
test_bitmap.c bitmap: add test for bitmap_*_region() functions 2023-10-14 20:25:22 -07:00
test_bitops.c lib/test: fix spelling mistakes 2021-07-08 11:48:20 -07:00
test_bits.c lib/test_bits.c: add tests of GENMASK 2020-08-12 10:58:00 -07:00
test_blackhole_dev.c net: blackhole_dev: fix build warning for ethh set but not used 2024-02-05 12:30:54 +00:00
test_bpf.c test_bpf: Rename second ALU64_SMOD_X to ALU64_SMOD_K 2023-12-09 21:27:54 -08:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: test DECLARE_DYNDBG_CLASSMAP, sysfs nodes 2022-09-07 17:04:49 +02:00
test_firmware.c firmware_loader: Expand Firmware upload error codes with firmware invalid error 2023-11-24 18:09:19 -08:00
test_fprobe.c fprobe: Pass return address to the handlers 2023-06-06 21:39:55 +09:00
test_fpu.c selftests/fpu: Fix debugfs_simple_attr.cocci warning 2021-01-18 11:03:26 +01:00
test_free_pages.c lib/test_free_pages.c: pass a pointer to virt_to_page() 2022-07-17 17:14:36 -07:00
test_hash.c test_hash.c: refactor into kunit 2022-01-20 08:52:54 +02:00
test_hexdump.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00
test_hmm_uapi.h hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_hmm.c lib: replace kmap() with kmap_local_page() 2023-08-18 10:18:50 -07:00
test_ida.c Quite a lot of kexec work this time around. Many singleton patches in 2024-01-09 11:46:20 -08:00
test_kmod.c test_kmod: stop kernel-doc warnings 2023-01-25 14:07:21 -08:00
test_kprobes.c test_kprobes: Add recursed kprobe test case 2023-02-21 08:52:42 +09:00
test_linear_ranges.c lib/test_linear_ranges: Use LINEAR_RANGE() 2022-11-16 13:32:32 +00:00
test_list_sort.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_lockup.c lib/test_lockup: fix kernel pointer check for separate address spaces 2022-02-25 09:36:06 +01:00
test_maple_tree.c maple_tree: don't find node end in mtree_lookup_walk() 2023-12-12 10:56:59 -08:00
test_memcat_p.c
test_meminit.c mm, treewide: introduce NR_PAGE_ORDERS 2024-01-08 15:27:15 -08:00
test_min_heap.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_module.c
test_objagg.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
test_objpool.c lib: test_objpool: make global variables static 2023-11-10 19:59:04 +09:00
test_parman.c
test_printf.c lib/vsprintf: declare no_hash_pointers in sprintf.h 2023-08-21 13:46:24 -07:00
test_ref_tracker.c lib/ref_tracker: improve printing stats 2023-06-05 15:28:42 -07:00
test_rhashtable.c Kill sched.h dependency on rcupdate.h 2023-12-27 11:50:20 -05:00
test_scanf.c lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix() 2023-08-16 11:47:29 +02:00
test_sort.c lib/test: convert test_sort.c to use KUnit 2021-09-08 11:50:26 -07:00
test_static_key_base.c
test_static_keys.c
test_string.c lib/test_string.c: add strspn and strcspn tests 2022-04-29 14:38:00 -07:00
test_sysctl.c sysctl: Remove the now superfluous sentinel elements from ctl_table array 2023-12-28 04:57:57 -08:00
test_ubsan.c ubsan: remove CONFIG_UBSAN_OBJECT_SIZE 2022-01-20 08:52:55 +02:00
test_user_copy.c usercopy: Avoid soft lockups in test_check_nonzero_user() 2019-10-16 14:56:21 +02:00
test_uuid.c
test_vmalloc.c lib/test_vmalloc.c: avoid garbage in page array 2023-06-12 11:31:51 -07:00
test_xarray.c XArray: Fix xas_create_range() when multi-order entry present 2022-03-28 19:25:11 -04:00
test-kstrtox.c
test-string_helpers.c lib/test-string_helpers: replace UNESCAPE_ANY by UNESCAPE_ALL_MASK 2023-04-08 13:45:39 -07:00
textsearch.c lib: textsearch: fix escapes in example code 2019-10-03 12:12:23 -04:00
timerqueue.c rbtree, timerqueue: Use rb_add_cached() 2021-02-17 14:08:01 +01:00
trace_readwrite.c lib/trace_readwrite.c:: replace asm-generic/io with linux/io 2023-12-29 12:22:29 -08:00
ts_bm.c lib/ts_bm: add helper to reduce indentation and improve readability 2023-07-27 13:45:51 +02:00
ts_fsm.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
ts_kmp.c lib/ts_kmp.c: replace zero-length array with flexible-array member 2020-04-07 10:43:43 -07:00
ubsan.c UBSAN: use the kernel panic message markers 2023-12-20 14:48:14 -08:00
ubsan.h ubsan: add prototypes for internal functions 2023-05-30 16:42:01 -07:00
ucmpdi2.c
ucs2_string.c lib/ucs2_string: Add UCS-2 strscpy function 2023-09-13 10:18:42 -07:00
usercopy.c uaccess: Add speculation barrier to copy_from_user() 2023-02-21 14:45:22 -08:00
uuid.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
vsprintf.c lib/vsprintf: Fix %pfwf when current node refcount == 0 2023-12-06 11:06:59 +01:00
win_minmax.c lib/win_minmax: use /* notation for regular comments 2023-01-11 16:14:21 -08:00
xarray.c xarray: Document necessary flag in alloc functions 2023-09-05 19:01:38 -04:00
xxhash.c lib/: replace HTTP links with HTTPS ones 2020-08-12 10:58:00 -07:00