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Linus Torvalds 606489dbfa Fix atomic64 operations on some architectures for the tracing ring buffer: 
- Have emulating atomic64 use arch_spin_locks instead of raw_spin_locks
 
   The tracing ring buffer events have a small timestamp that holds the
   delta between itself and the event before it. But this can be tricky
   to update when interrupts come in. It originally just set the deltas
   to zero for events that interrupted the adding of another event which
   made all the events in the interrupt have the same timestamp as the
   event it interrupted. This was not suitable for many tools, so it
   was eventually fixed. But that fix required adding an atomic64 cmpxchg
   on the timestamp in cases where an event was added while another
   event was in the process of being added.
 
   Originally, for 32 bit architectures, the manipulation of the 64 bit
   timestamp was done by a structure that held multiple 32bit words to hold
   parts of the timestamp and a counter. But as updates to the ring buffer
   were done, maintaining this became too complex and was replaced by the
   atomic64 generic operations which are now used by both 64bit and 32bit
   architectures.  Shortly after that, it was reported that riscv32 and
   other 32 bit architectures that just used the generic atomic64 were
   locking up. This was because the generic atomic64 operations defined in
   lib/atomic64.c uses a raw_spin_lock() to emulate an atomic64 operation.
   The problem here was that raw_spin_lock() can also be traced by the
   function tracer (which is commonly used for debugging raw spin locks).
   Since the function tracer uses the tracing ring buffer, which now is being
   traced internally, this was triggering a recursion and setting off a
   warning that the spin locks were recusing.
 
   There's no reason for the code that emulates atomic64 operations to be
   using raw_spin_locks which have a lot of debugging infrastructure attached
   to them (depending on the config options). Instead it should be using
   the arch_spin_lock() which does not have any infrastructure attached to
   them and is used by low level infrastructure like RCU locks, lockdep
   and of course tracing. Using arch_spin_lock()s fixes this issue.
 
 - Do not trace in NMI if the architecture uses emulated atomic64 operations
 
   Another issue with using the emulated atomic64 operations that uses
   spin locks to emulate the atomic64 operations is that they cannot be
   used in NMI context. As an NMI can trigger while holding the atomic64
   spin locks it can try to take the same lock and cause a deadlock.
 
   Have the ring buffer fail recording events if in NMI context and the
   architecture uses the emulated atomic64 operations.
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Merge tag 'trace-ringbuffer-v6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull trace fing buffer fix from Steven Rostedt:
 "Fix atomic64 operations on some architectures for the tracing ring
  buffer:

   - Have emulating atomic64 use arch_spin_locks instead of
     raw_spin_locks

     The tracing ring buffer events have a small timestamp that holds
     the delta between itself and the event before it. But this can be
     tricky to update when interrupts come in. It originally just set
     the deltas to zero for events that interrupted the adding of
     another event which made all the events in the interrupt have the
     same timestamp as the event it interrupted. This was not suitable
     for many tools, so it was eventually fixed. But that fix required
     adding an atomic64 cmpxchg on the timestamp in cases where an event
     was added while another event was in the process of being added.

     Originally, for 32 bit architectures, the manipulation of the 64
     bit timestamp was done by a structure that held multiple 32bit
     words to hold parts of the timestamp and a counter. But as updates
     to the ring buffer were done, maintaining this became too complex
     and was replaced by the atomic64 generic operations which are now
     used by both 64bit and 32bit architectures. Shortly after that, it
     was reported that riscv32 and other 32 bit architectures that just
     used the generic atomic64 were locking up. This was because the
     generic atomic64 operations defined in lib/atomic64.c uses a
     raw_spin_lock() to emulate an atomic64 operation. The problem here
     was that raw_spin_lock() can also be traced by the function tracer
     (which is commonly used for debugging raw spin locks). Since the
     function tracer uses the tracing ring buffer, which now is being
     traced internally, this was triggering a recursion and setting off
     a warning that the spin locks were recusing.

     There's no reason for the code that emulates atomic64 operations to
     be using raw_spin_locks which have a lot of debugging
     infrastructure attached to them (depending on the config options).
     Instead it should be using the arch_spin_lock() which does not have
     any infrastructure attached to them and is used by low level
     infrastructure like RCU locks, lockdep and of course tracing. Using
     arch_spin_lock()s fixes this issue.

   - Do not trace in NMI if the architecture uses emulated atomic64
     operations

     Another issue with using the emulated atomic64 operations that uses
     spin locks to emulate the atomic64 operations is that they cannot
     be used in NMI context. As an NMI can trigger while holding the
     atomic64 spin locks it can try to take the same lock and cause a
     deadlock.

     Have the ring buffer fail recording events if in NMI context and
     the architecture uses the emulated atomic64 operations"

* tag 'trace-ringbuffer-v6.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  atomic64: Use arch_spin_locks instead of raw_spin_locks
  ring-buffer: Do not allow events in NMI with generic atomic64 cmpxchg()
2025-01-23 18:02:55 -08:00
..
842 move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
crypto This update includes the following changes: 2024-11-19 10:28:41 -08:00
dim dim: pass dim_sample to net_dim() by reference 2024-11-03 12:36:54 -08:00
fonts drm/log: select CONFIG_FONT_SUPPORT 2024-12-12 18:26:32 +01:00
kunit linux_kselftest-kunit-6.14-rc1 2025-01-22 12:32:39 -08:00
lz4 move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
lzo move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
math lib/math/test_div64: add some edge cases relevant to __div64_const32() 2024-10-28 21:44:28 +00:00
pldmfw pldmfw: enable selected component update 2025-01-16 13:04:41 -08:00
raid6 lib/raid6: use CC_FLAGS_FPU for NEON CFLAGS 2024-05-19 14:36:18 -07:00
reed_solomon treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
test_fortify fortify: use if_changed_dep to record header dependency in *.cmd files 2024-08-15 09:26:02 -07:00
tests selftests: kallsyms: fix and clarify current test boundaries 2024-11-28 11:17:30 -08:00
vdso random: vDSO: minimize and simplify header includes 2024-09-13 17:28:35 +02:00
xz move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
zlib_deflate lib/zlib: add missing MODULE_DESCRIPTION() macro 2024-07-04 23:43:11 -07:00
zlib_dfltcc lib/zlib: unpoison DFLTCC output buffers 2024-07-03 19:30:23 -07:00
zlib_inflate lib/zlib: Split deflate and inflate states for DFLTCC 2023-02-02 22:50:09 -08:00
zstd move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
.gitignore fortify: refactor test_fortify Makefile to fix some build problems 2024-08-15 09:26:02 -07:00
alloc_tag.c alloc_tag: skip pgalloc_tag_swap if profiling is disabled 2025-01-15 21:15:43 -08:00
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/asn1_encoder: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:06 -07:00
assoc_array.c assoc_array: fix the return value in assoc_array_insert_mid_shortcut() 2024-03-12 13:09:23 -07:00
atomic64.c atomic64: Use arch_spin_locks instead of raw_spin_locks 2025-01-22 15:07:01 -05:00
atomic64_test.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/*_test.ko 2024-06-24 22:25:06 -07:00
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 lib/bcd: optimize _bin2bcd() for improved performance 2024-09-01 20:43:33 -07:00
bch.c lib/bch.c: use swap() to improve code 2024-07-12 16:39:53 -07:00
bitfield_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
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: Remove duplicate included header file linux/bootconfig.h 2024-07-12 08:55:02 +09:00
bsearch.c lib/bsearch: Provide __always_inline variant 2020-06-11 15:14:53 +02:00
btree.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -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 lib/build_OID_registry: avoid non-destructive substitution for Perl < 5.13.2 compat 2024-07-06 11:39:51 -07:00
buildid.c lib/buildid: Handle memfd_secret() files in build_id_parse() 2024-10-17 21:30:32 +02:00
bust_spinlocks.c kernel/panic: Drop unblank_screen call 2022-09-01 16:55:35 +02:00
check_signature.c
checksum.c net: checksum: Move from32to16() to generic header 2024-10-30 15:29:59 +01:00
checksum_kunit.c lib: checksum: use ARRAY_SIZE() to improve assert_setup_correct() 2024-09-01 20:43:30 -07:00
closure.c closures: use seq_putc() in debug_show() 2024-09-01 20:43:29 -07:00
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.c lib/cmdline: avoid page fault in next_arg 2022-09-11 21:55:06 -07:00
cmdline_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
cmpdi2.c
cmpxchg-emu.c lib: Add one-byte emulation function 2024-04-09 22:06:00 -07:00
codetag.c alloc_tag: support for page allocation tag compression 2024-11-07 14:25:16 -08:00
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.c bitmap patches for v6.7 2023-11-03 07:08:36 -10:00
cpumask_kunit.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -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 lib/crc-t10dif: stop wrapping the crypto API 2024-12-01 17:23:13 -08:00
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: improve support for arch-specific overrides 2024-12-01 17:23:01 -08:00
crc32defs.h
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_kunit.c lib/crc_kunit.c: add KUnit test suite for CRC library functions 2024-12-01 17:23:13 -08:00
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: Track object usage to avoid premature freeing of objects 2024-10-15 17:30:33 +02:00
dec_and_lock.c perf: Fix perf_event_pmu_context serialization 2023-01-31 20:37:18 +01:00
decompress.c lib: Add zstd support to decompress 2020-07-31 11:49:08 +02:00
decompress_bunzip2.c decompress_bunzip2: fix rare decompression failure 2024-07-26 14:33:09 -07:00
decompress_inflate.c decompressor: provide missing prototypes 2023-06-09 17:44:17 -07:00
decompress_unlz4.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
decompress_unlzma.c minmax: make generic MIN() and MAX() macros available everywhere 2024-07-28 15:49:18 -07:00
decompress_unlzo.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
decompress_unxz.c xz: remove XZ_EXTERN and extern from functions 2024-09-01 20:43:27 -07:00
decompress_unzstd.c decompressor: provide missing prototypes 2023-06-09 17:44:17 -07:00
devmem_is_allowed.c lib: devmem_is_allowed: include linux/io.h 2023-06-09 17:44:15 -07:00
devres.c lib: devres: Simplify API devm_ioport_unmap() implementation 2024-10-14 08:21:09 +02:00
dhry.h lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_1.c lib: dhry: use ktime_ms_delta() helper 2024-02-22 15:38:52 -08:00
dhry_2.c lib: add Dhrystone benchmark test 2023-02-02 22:50:01 -08:00
dhry_run.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
digsig.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
dump_stack.c Linux 6.11-rc1 2024-07-30 09:30:11 -10:00
dynamic_debug.c dyndbg: use seq_putc() in ddebug_proc_show() 2024-09-01 20:43:29 -07:00
dynamic_queue_limits.c dql: annotate data-races around dql->last_obj_cnt 2024-10-31 19:19:36 -07:00
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: improve build for CONFIG_FAULT_INJECTION=n 2024-09-01 20:43:33 -07:00
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c bitmap patches for 6.10 2024-05-21 15:29:01 -07:00
find_bit_benchmark.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -07:00
flex_proportions.c flex_proportions: remove unused fprop_local_single 2024-02-22 15:38:52 -08:00
fortify_kunit.c mm: kvmalloc: align kvrealloc() with krealloc() 2024-09-01 20:25:44 -07:00
fw_table.c lib/firmware_table: Provide buffer length argument to cdat_table_parse() 2024-03-13 00:03:21 -07:00
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 preallocation 2024-09-09 09:41:47 -04:00
glob.c lib: glob.c: added null check for character class 2024-09-09 16:47:41 -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 KUnit: add missing MODULE_DESCRIPTION() macros for lib/*_test.ko 2024-06-24 22:25:06 -07:00
hexdump.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
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.c interval-tree: Add a utility to iterate over spans in an interval tree 2022-11-29 16:34:15 -04:00
interval_tree_test.c lib/interval_tree_test.c: Include <linux/prandom.h> instead of <linux/random.h> 2024-10-03 18:20:12 +02:00
iomap.c kmsan: add iomap support 2022-10-03 14:03:21 -07:00
iomap_copy.c s390: Stop using weak symbols for __iowrite64_copy() 2024-04-22 17:11:20 -03:00
iomem_copy.c lib/iomem_copy: fix kerneldoc format style 2024-10-29 07:14:29 +00:00
iommu-helper.c
iov_iter.c for-6.13/block-20241118 2024-11-18 16:50:08 -08:00
irq_poll.c softirq: Remove unused 'action' parameter from action callback 2024-08-20 17:13:40 +02:00
irq_regs.c
is_signed_type_kunit.c kunit: add missing MODULE_DESCRIPTION() macros to lib/*.c 2024-06-24 22:25:06 -07:00
is_single_threaded.c
kasprintf.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
Kconfig lib/crc32test: delete obsolete crc32test.c 2024-12-09 22:09:37 -08:00
Kconfig.debug CRC updates for 6.14 2025-01-22 19:55:08 -08:00
Kconfig.kasan kasan: delete CONFIG_KASAN_MODULE_TEST 2024-11-11 00:26:44 -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 Documentation: move dev-tools debugging files to process/debugging/ 2024-12-17 13:46:53 -07:00
Kconfig.kmsan mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile 2023-12-05 11:14:40 +01:00
Kconfig.ubsan x86/traps: Enable UBSAN traps on x86 2024-08-06 13:42:40 +02:00
kfifo.c TTY/Serial changes for 6.10-rc1 2024-05-22 11:53:02 -07:00
klist.c
kobject.c Revert "kobject: Remove redundant checks for whether ktype is NULL" 2024-02-08 16:39:25 +00:00
kobject_uevent.c kobject_uevent: Fix OOB access within zap_modalias_env() 2024-06-12 13:24:05 +02:00
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 netfs: Add a tracepoint to log the lifespan of folio_queue structs 2024-12-20 22:34:02 +01:00
linear_ranges.c lib: add linear range get selector within 2021-08-13 18:37:38 +02:00
list-test.c list: test: check the size of every lists for list_cut_position*() 2024-11-05 17:12:30 -08:00
list_debug.c list: Introduce CONFIG_LIST_HARDENED 2023-08-15 14:57:25 -07:00
list_sort.c lib/list_sort: remove unnecessary header includes 2024-11-05 17:12:33 -08:00
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 locking/ww_mutex: Fix ww_mutex dummy lockdep map selftest warnings 2024-12-02 12:16:57 +01:00
lockref.c lockref: use bool for false/true returns 2025-01-16 11:48:11 +01:00
logic_iomem.c lib/logic_iomem: correct fallback config references 2022-03-11 10:42:56 +01:00
logic_pio.c logic_pio: Constify fwnode_handle 2024-10-14 16:33:24 -05:00
lru_cache.c lib/lru_cache: fix spelling mistake "colision"->"collision" 2024-09-01 20:43:29 -07:00
lshrdi3.c
lwq.c lib: add light-weight queuing mechanism. 2023-10-16 12:44:06 -04:00
Makefile lib/crc32test: delete obsolete crc32test.c 2024-12-09 22:09:37 -08:00
maple_tree.c maple_tree: reload mas before the second call for mas_empty_area 2024-12-30 17:59:07 -08:00
memcat_p.c
memcpy_kunit.c kunit/fortify: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:05 -07:00
memory-notifier-error-inject.c
memregion.c lib/memregion.c: include memregion.h 2020-09-26 10:33:57 -07:00
memweight.c
min_heap.c lib/min_heap: introduce non-inline versions of min heap API functions 2024-11-05 17:12:34 -08:00
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 mlxsw: spectrum_acl_erp: Fix object nesting warning 2024-06-10 11:14:52 +01:00
objpool.c objpool: fix to make percpu slot allocation more robust 2024-11-07 14:14:58 -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 Compiler Attributes: disable __counted_by for clang < 19.1.3 2024-11-19 08:48:27 -08:00
packing.c lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
packing_test.c lib: packing: add pack_fields() and unpack_fields() 2024-12-11 20:13:00 -08:00
parman.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
parser.c Documentation: core-api: add generic parser docbook 2024-12-11 09:07:40 -07:00
percpu-refcount.c percpu-refcount: Use call_rcu_hurry() for atomic switch 2022-11-30 13:16:40 -08:00
percpu_counter.c lib/percpu_counter: add missing __percpu qualifier to a cast 2024-09-01 20:43:34 -07:00
percpu_test.c percpu: add a test case for the specific 64-bit value addition 2024-11-06 20:11:14 -08:00
plist.c lib/plist.c: avoid worst case scenario in plist_add 2024-06-24 22:25:10 -07:00
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 Random number generator updates for Linux 6.13-rc1. 2024-11-19 10:43:44 -08:00
ratelimit.c ratelimit: Fix data-races in ___ratelimit(). 2022-08-24 13:46:57 +01:00
rbtree.c lib/rbtree.c: fix the example typo 2024-07-04 23:43:10 -07:00
rbtree_test.c lib/rbtree-test: Include <linux/prandom.h> instead of <linux/random.h> 2024-10-03 18:20:19 +02:00
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 lib/rhashtable: cleanup fallback check in bucket_table_alloc() 2024-09-01 20:43:32 -07:00
sbitmap.c lib/sbitmap: define swap_lock as raw_spinlock_t 2024-09-20 00:20:06 -06:00
scatterlist.c lib/scatterlist: use sg_phys() helper 2024-11-05 17:12:40 -08:00
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.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
siphash_kunit.c siphash: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
slub_kunit.c mm/slub, kunit: Add testcase for krealloc redzone and zeroing 2024-11-16 21:19:39 +01:00
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: optimize heapsort for handling final 2 or 3 elements 2024-06-24 22:25:03 -07:00
stackdepot.c stackdepot: fix stack_depot_save_flags() in NMI context 2024-12-05 19:54:45 -08:00
stackinit_kunit.c lib: stackinit: hide never-taken branch from compiler 2024-12-05 19:54:47 -08:00
stmp_device.c
string.c strscpy: write destination buffer only once 2024-12-01 12:17:16 -08:00
string_helpers.c lib: string_helpers: silence snprintf() output truncation warning 2024-11-02 13:08:55 -07:00
string_helpers_kunit.c string: kunit: add missing MODULE_DESCRIPTION() macros 2024-06-28 08:54:55 -07:00
string_kunit.c string: kunit: add missing MODULE_DESCRIPTION() macros 2024-06-28 08:54:55 -07:00
strncpy_from_user.c kasan: move checks to do_strncpy_from_user 2024-11-11 00:26:43 -08:00
strnlen_user.c x86: support user address masking instead of non-speculative conditional 2024-08-19 11:31:18 -07:00
syscall.c sched: Change task_struct::state 2021-06-18 11:43:09 +02:00
test-kstrtox.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_bitmap.c lib: bitmap: add missing MODULE_DESCRIPTION() macros 2024-06-18 10:40:52 -07:00
test_bitops.c lib/test_bitops: Add benchmark test for fns() 2024-05-09 09:25:08 -07:00
test_bits.c lib/test_bits.c: Add tests for GENMASK_U128() 2024-08-28 06:54:39 -07:00
test_blackhole_dev.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_bpf.c bpf/tests: Add 32 bits only long conditional jump tests 2025-01-06 16:10:19 +01:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: add missing MODULE_DESCRIPTION() macro 2024-06-04 17:40:02 +02:00
test_firmware.c module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
test_fprobe.c fprobe: Rewrite fprobe on function-graph tracer 2024-12-26 10:50:05 -05:00
test_fpu.h selftests/fpu: move FP code to a separate translation unit 2024-05-19 14:36:20 -07:00
test_fpu_glue.c lib: fix the NULL vs IS_ERR() bug for debugfs_create_dir() 2024-09-01 20:43:40 -07:00
test_fpu_impl.c selftests/fpu: move FP code to a separate translation unit 2024-05-19 14:36:20 -07:00
test_free_pages.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hash.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hexdump.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_hmm.c lib: test_hmm: use min() to improve dmirror_exclusive() 2024-09-01 20:25:52 -07:00
test_hmm_uapi.h hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_ida.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_kmod.c lib/test_kmod: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
test_kprobes.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_linear_ranges.c lib/test_linear_ranges: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:07 -07:00
test_list_sort.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
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: add a test checking storing null 2024-11-11 13:09:42 -08:00
test_memcat_p.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_meminit.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_min_heap.c lib/test_min_heap: update min_heap_callbacks to use default builtin swap 2024-11-05 17:12:35 -08:00
test_module.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_objagg.c lib: test_objagg: Fix spelling 2024-06-10 11:14:52 +01:00
test_objpool.c lib: test_objpool: Use kthread_run_on_cpu() 2025-01-02 22:12:12 +01:00
test_parman.c lib/test_parman: Include <linux/prandom.h> instead of <linux/random.h> 2024-10-03 18:20:27 +02:00
test_printf.c printf: Add print format (%pra) for struct range 2024-10-28 14:32:43 -07:00
test_ref_tracker.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_rhashtable.c lib/test_rhashtable: add missing MODULE_DESCRIPTION() macro 2024-06-03 18:51:18 -07:00
test_scanf.c lib/test_scanf: Include <linux/prandom.h> instead of <linux/random.h> 2024-10-03 18:20:29 +02:00
test_sort.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_static_key_base.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_static_keys.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_sysctl.c KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko 2024-06-24 22:25:11 -07:00
test_ubsan.c ubsan: add missing MODULE_DESCRIPTION() macro 2024-07-03 19:30:05 -07:00
test_uuid.c uuid: add missing MODULE_DESCRIPTION() macro 2024-06-24 22:25:06 -07:00
test_vmalloc.c lib/test_vmalloc.c: use unsigned long constant 2024-03-04 17:01:22 -08:00
test_xarray.c test_xarray: add missing MODULE_DESCRIPTION() macro 2024-07-03 19:30:05 -07:00
textsearch.c
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: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ts_fsm.c lib/ts: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ts_kmp.c lib/ts: add missing MODULE_DESCRIPTION() macros 2024-06-24 22:25:04 -07:00
ubsan.c ubsan: Add awareness of signed integer overflow traps 2024-04-15 17:42:43 -07:00
ubsan.h ubsan: Avoid i386 UBSAN handler crashes with Clang 2024-04-24 15:45:38 -07:00
ucmpdi2.c
ucs2_string.c lib/ucs2_string: Add UCS-2 strscpy function 2023-09-13 10:18:42 -07:00
union_find.c Union-Find: add a new module in kernel library 2024-07-30 13:04:36 -10:00
usercopy.c uaccess: always export _copy_[from|to]_user with CONFIG_RUST 2024-07-08 23:44:01 +02:00
usercopy_kunit.c kunit/usercopy: Add missing MODULE_DESCRIPTION() 2024-07-02 10:11:45 -06:00
util_macros_kunit.c lib: util_macros_kunit: add kunit test for util_macros.h 2024-11-11 17:17:05 -08:00
uuid.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
vsprintf.c vsnprintf: fix the number base for non-numeric formats 2025-01-13 08:23:28 -08:00
win_minmax.c rxrpc: Generate rtt_min 2024-12-09 13:48:29 -08:00
xarray.c The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
xxhash.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00