Thomas Gleixner ee1ee6db07 atomics: Provide rcuref - scalable reference counting ... atomic_t based reference counting, including refcount_t, uses atomic_inc_not_zero() for acquiring a reference. atomic_inc_not_zero() is implemented with a atomic_try_cmpxchg() loop. High contention of the reference count leads to retry loops and scales badly. There is nothing to improve on this implementation as the semantics have to be preserved. Provide rcuref as a scalable alternative solution which is suitable for RCU managed objects. Similar to refcount_t it comes with overflow and underflow detection and mitigation. rcuref treats the underlying atomic_t as an unsigned integer and partitions this space into zones: 0x00000000 - 0x7FFFFFFF valid zone (1 .. (INT_MAX + 1) references) 0x80000000 - 0xBFFFFFFF saturation zone 0xC0000000 - 0xFFFFFFFE dead zone 0xFFFFFFFF no reference rcuref_get() unconditionally increments the reference count with atomic_add_negative_relaxed(). rcuref_put() unconditionally decrements the reference count with atomic_add_negative_release(). This unconditional increment avoids the inc_not_zero() problem, but requires a more complex implementation on the put() side when the count drops from 0 to -1. When this transition is detected then it is attempted to mark the reference count dead, by setting it to the midpoint of the dead zone with a single atomic_cmpxchg_release() operation. This operation can fail due to a concurrent rcuref_get() elevating the reference count from -1 to 0 again. If the unconditional increment in rcuref_get() hits a reference count which is marked dead (or saturated) it will detect it after the fact and bring back the reference count to the midpoint of the respective zone. The zones provide enough tolerance which makes it practically impossible to escape from a zone. The racy implementation of rcuref_put() requires to protect rcuref_put() against a grace period ending in order to prevent a subtle use after free. As RCU is the only mechanism which allows to protect against that, it is not possible to fully replace the atomic_inc_not_zero() based implementation of refcount_t with this scheme. The final drop is slightly more expensive than the atomic_dec_return() counterpart, but that's not the case which this is optimized for. The optimization is on the high frequeunt get()/put() pairs and their scalability. The performance of an uncontended rcuref_get()/put() pair where the put() is not dropping the last reference is still on par with the plain atomic operations, while at the same time providing overflow and underflow detection and mitigation. The performance of rcuref compared to plain atomic_inc_not_zero() and atomic_dec_return() based reference counting under contention: - Micro benchmark: All CPUs running a increment/decrement loop on an elevated reference count, which means the 0 to -1 transition never happens. The performance gain depends on microarchitecture and the number of CPUs and has been observed in the range of 1.3X to 4.7X - Conversion of dst_entry::__refcnt to rcuref and testing with the localhost memtier/memcached benchmark. That benchmark shows the reference count contention prominently. The performance gain depends on microarchitecture and the number of CPUs and has been observed in the range of 1.1X to 2.6X over the previous fix for the false sharing issue vs. struct dst_entry::__refcnt. When memtier is run over a real 1Gb network connection, there is a small gain on top of the false sharing fix. The two changes combined result in a 2%-5% total gain for that networked test. Reported-by: Wangyang Guo <wangyang.guo@intel.com> Reported-by: Arjan Van De Ven <arjan.van.de.ven@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20230323102800.158429195@linutronix.de		2023-03-28 10:39:29 +02:00
..
842
crypto	crypto: lib/blake2s - Split up test function to halve stack usage	2022-12-30 22:56:27 +08:00
dim	dim: initialize all struct fields	2022-05-09 17:20:37 -07:00
fonts	lib/fonts: fix undefined behavior in bit shift for get_default_font	2022-11-18 13:55:09 -08:00
kunit	kunit: Fix 'hooks.o' build by recursing into kunit	2023-02-27 14:49:03 -08:00
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	math64: favor kernel-doc from header files	2022-11-21 14:30:53 -07:00
mpi	lib/mpi: Fix buffer overrun when SG is too long	2023-01-06 17:15:46 +08:00
pldmfw	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
raid6	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
reed_solomon	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
test_fortify	fortify: Detect struct member overflows in memset() at compile-time	2022-02-13 16:50:06 -08:00
vdso	lib/vdso: use "grep -E" instead of "egrep"	2022-11-23 19:50:15 +01:00
xz	lib/xz, lib/decompress_unxz.c: Fix spelling in comments	2021-10-19 23:44:30 +08:00
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: import usptream v1.5.2	2022-10-24 12:12:32 -07:00
.gitignore	bootconfig: Support embedding a bootconfig file in kernel	2022-04-26 17:58:51 -04:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
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: fix a typo in the file bch.c	2021-05-06 19:24:12 -07:00
bitfield_kunit.c
bitmap.c	lib/bitmap: remove bitmap_ord_to_pos	2022-09-26 12:19:12 -07:00
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
btree.c	lib/btree: simplify btree_{lookup|update}	2022-06-16 19:58:21 -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	kdump: use vmlinux_build_id to simplify	2021-07-08 11:48:22 -07:00
bust_spinlocks.c	kernel/panic: Drop unblank_screen call	2022-09-01 16:55:35 +02:00
check_signature.c
checksum.c
clz_ctz.c
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
cpumask_kunit.c	cpumask: re-introduce constant-sized cpumask optimizations	2023-03-05 14:30:34 -08:00
cpumask.c	lib/cpumask: update comment for cpumask_local_spread()	2023-02-07 18:20:00 -08:00
crc4.c
crc7.c
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
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
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	Non-MM patches for 6.2-rc1.	2022-12-12 17:28:58 -08:00
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
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	lib/xz, lib/decompress_unxz.c: Fix spelling in comments	2021-10-19 23:44:30 +08:00
decompress_unzstd.c	lib: zstd: Add decompress_sources.h for decompress_unzstd	2021-11-08 16:55:26 -08:00
decompress.c
devmem_is_allowed.c	lib: use PFN_PHYS() in devmem_is_allowed()	2021-08-13 14:09:32 -10:00
devres.c	devres: remove devm_ioremap_np	2022-09-01 18:04:43 +02:00
dhry_1.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_2.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_run.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry.h	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
digsig.c
dump_stack.c	printk: rename cpulock functions	2022-04-22 21:30:57 +02:00
dynamic_debug.c	dyndbg: add drm.debug style (drm/parameters/debug) bitmap support	2022-09-07 17:04:49 +02:00
dynamic_queue_limits.c
earlycpio.c	lib: move from strlcpy with unused retval to strscpy	2022-09-11 21:55:10 -07:00
errname.c	printf: fix errname.c list	2023-02-15 15:44:43 +01:00
error-inject.c	error-injection: remove EI_ETYPE_NONE	2023-02-02 22:50:00 -08:00
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c	fault-injection: make stacktrace filter works as expected	2022-12-15 16:40:44 -08:00
fdt_addresses.c
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	lib/find: introduce find_nth_and_andnot_bit	2023-02-07 18:20:00 -08:00
flex_proportions.c	flex_proportions: Disable preemption entering the write section.	2022-09-19 14:35:08 +02:00
fortify_kunit.c	kunit/fortify: Validate __alloc_size attribute results	2022-11-22 21:08:28 -08:00
gen_crc32table.c
gen_crc64table.c	lib: add rocksoft model crc64	2022-03-07 12:48:35 -07:00
genalloc.c	lib/genalloc: use try_cmpxchg in {set,clear}_bits_ll	2023-02-02 22:50:05 -08:00
generic-radix-tree.c
glob.c	lib: remove back_str initialization	2022-04-29 14:38:01 -07:00
globtest.c
group_cpus.c	genirq/affinity: Only build SMP-only helper functions on SMP kernels	2023-01-18 12:16:47 +01:00
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: don't use BUG_ON() for debugging	2022-07-10 13:55:49 -07:00
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	46 fs/cifs (smb3 client) changesets, 37 in fs/cifs and 9 for related helper functions and cleanup outside from Dave Howells and Willy	2023-02-22 17:12:44 -08:00
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	iommufd for 6.2	2022-12-14 09:15:43 -08:00
Kconfig.debug	There is no particular theme here - mainly quick hits all over the tree.	2023-02-23 17:55:40 -08:00
Kconfig.kasan	kasan: treat meminstrinsic as builtins in uninstrumented files	2023-03-02 21:54:22 -08:00
Kconfig.kcsan	Kernel concurrency sanitizer (KCSAN) updates for v6.3	2023-02-25 13:02:20 -08:00
Kconfig.kfence	kfence: allow use of a deferrable timer	2022-03-22 15:57:11 -07:00
Kconfig.kgdb	parisc: Convert PDC console to an early console	2022-10-11 12:01:24 +02:00
Kconfig.kmsan	kmsan: make sure PREEMPT_RT is off	2022-11-08 15:57:24 -08:00
Kconfig.ubsan	ubsan: disable UBSAN_DIV_ZERO for clang	2022-07-14 15:45:26 -07:00
kfifo.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
klist.c
kobject_uevent.c	kobject: remove kset from struct kset_uevent_ops callbacks	2021-12-28 11:26:18 +01:00
kobject.c	kobject: make dynamic_kobj_ktype and kset_ktype const	2023-02-08 13:34:20 +01:00
kstrtox.c	lib/kstrtox.c: add "false"/"true" support to kstrtobool()	2022-05-13 07:20:13 -07:00
kstrtox.h	lib: vsprintf: Fix handling of number field widths in vsscanf	2021-05-19 15:05:11 +02:00
libcrc32c.c
linear_ranges.c	lib: add linear range get selector within	2021-08-13 18:37:38 +02:00
list_debug.c	lib/list_debug.c: Detect uninitialized lists	2022-06-16 19:58:20 -07:00
list_sort.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
list-test.c	list: test: Test the hlist structure	2022-04-05 13:32:27 -06:00
llist.c	llist: avoid extra memory read in llist_add_batch	2022-11-18 13:55:06 -08:00
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: Adapt ww-tests for PREEMPT_RT	2021-12-04 10:56:24 +01:00
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
lru_cache.c	lru_cache: remove unused lc_private, lc_set, lc_index_of	2022-11-22 19:38:39 -07:00
lshrdi3.c
Makefile	atomics: Provide rcuref - scalable reference counting	2023-03-28 10:39:29 +02:00
maple_tree.c	maple_tree: reduce stack usage with gcc-9 and earlier	2023-02-16 20:43:55 -08:00
memcat_p.c
memcpy_kunit.c	kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST	2023-01-25 12:24:40 -08:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c	mac_pton: Don't access memory over expected length	2022-11-09 19:28:02 -08:00
netdev-notifier-error-inject.c
nlattr.c	netlink: prevent potential spectre v1 gadgets	2023-01-20 17:52:32 -08:00
nmi_backtrace.c	x86/nmi: Print reasons why backtrace NMIs are ignored	2023-01-19 15:55:12 -08:00
notifier-error-inject.c	lib/notifier-error-inject: fix error when writing -errno to debugfs file	2022-11-30 16:13:16 -08:00
notifier-error-inject.h
objagg.c	lib: objagg: Use the bitmap API when applicable	2021-12-24 14:54:29 -08:00
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: Introduce overflows_type() and castable_to_type()	2022-11-02 12:39:27 -07:00
packing.c	lib: packing: replace bit_reverse() with bitrev8()	2022-12-12 15:06:30 -08:00
parman.c
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	lib/percpu_counter: percpu_counter_add_batch() overflow/underflow	2023-02-02 22:50:01 -08:00
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	lib/radix-tree.c: fix uninitialized variable compilation warning	2022-11-30 16:13:17 -08:00
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
rbtree.c
rcuref.c	atomics: Provide rcuref - scalable reference counting	2023-03-28 10:39:29 +02:00
ref_tracker.c	ref_tracker: remove filter_irq_stacks() call	2022-02-06 11:05:28 +00:00
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: correct wake_batch recalculation to avoid potential IO hung	2023-01-29 20:03:01 -07:00
scatterlist.c	lib/scatterlist: Fix to calculate the last_pg properly	2023-01-16 12:08:31 -04:00
seq_buf.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
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
show_mem.c	mm: reduce noise in show_mem for lowmem allocations	2022-09-26 19:46:29 -07:00
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	lib/stackdepot: move documentation comments to stackdepot.h	2023-02-16 20:43:52 -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
string_helpers.c	lib/string_helpers: Introduce parse_int_array_user()	2022-09-05 14:51:46 +01:00
string.c	lib/string: Use strchr() in strpbrk()	2023-01-27 11:42:57 -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	lib/bitmap: add tests for for_each() loops	2022-10-01 10:22:58 -07:00
test_bitops.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_bits.c
test_blackhole_dev.c
test_bpf.c	net: remove skb->vlan_present	2022-11-11 18:18:05 -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	test_firmware: Use kstrtobool() instead of strtobool()	2023-01-20 14:09:47 +01:00
test_fprobe.c	treewide: use get_random_u32_{above,below}() instead of manual loop	2022-11-18 02:15:22 +01:00
test_fpu.c
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	hmm-tests: add test for migrate_device_range()	2022-10-12 18:51:50 -07:00
test_ida.c
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	test_maple_tree: test modifications while iterating	2023-02-09 16:51:31 -08:00
test_memcat_p.c
test_meminit.c	lib/test_meminit: add checks for the allocation functions	2022-10-12 18:51:49 -07:00
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_parman.c
test_printf.c	mm: discard __GFP_ATOMIC	2023-02-02 22:33:13 -08:00
test_ref_tracker.c	lib: add tests for reference tracker	2021-12-06 16:04:44 -08:00
test_rhashtable.c	Networking changes for 6.2.	2022-12-13 15:47:48 -08:00
test_scanf.c	lib/test_scanf: split up number parsing test routines	2021-09-06 11:04:03 -07:00
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	testing: use the copyleft-next-0.3.1 SPDX tag	2022-11-08 15:44:02 +01:00
test_ubsan.c	ubsan: remove CONFIG_UBSAN_OBJECT_SIZE	2022-01-20 08:52:55 +02:00
test_user_copy.c
test_uuid.c
test_vmalloc.c	lib/test_vmalloc.c: add parameter use_huge for fix_size_alloc_test	2023-01-18 17:12:41 -08:00
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	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
textsearch.c
timerqueue.c
trace_readwrite.c	asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info	2022-11-21 22:02:10 +01:00
ts_bm.c	lib/ts_bm.c: remove redundant store to variable consumed after addition	2022-07-17 17:31:39 -07:00
ts_fsm.c
ts_kmp.c
ubsan.c	hardening updates for v6.3-rc1	2023-02-21 11:07:23 -08:00
ubsan.h	arm64: Support Clang UBSAN trap codes for better reporting	2023-02-08 15:26:58 -08:00
ucmpdi2.c
ucs2_string.c
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	Random number generator updates for Linux 6.2-rc1.	2022-12-12 16:22:22 -08:00
win_minmax.c	lib/win_minmax: use /* notation for regular comments	2023-01-11 16:14:21 -08:00
xarray.c	mm/huge_memory: Fix xarray node memory leak	2022-06-09 16:24:25 -04:00
xxhash.c