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| author | FUJITA Tomonori <fujita.tomonori@gmail.com> | 2025-12-28 21:05:46 +0900 |
|---|---|---|
| committer | Boqun Feng <boqun.feng@gmail.com> | 2026-01-09 19:01:41 +0800 |
| commit | 584f286f822afecc1a6521a27b3caf3e2f515d41 (patch) | |
| tree | 895d4b10a785ef15b75826b4651616f2b23f3252 /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | 7b001c97d9bdaea50e1e1834040c58f7ef9f4e89 (diff) | |
rust: sync: atomic: Add i8/i16 xchg and cmpxchg support
Add atomic xchg and cmpxchg operation support for i8 and i16 types
with tests.
Note that since the current implementation of
Atomic::<{i8,i16}>::{load,store}() is READ_ONCE()/WRITE_ONCE()-based.
The atomicity between load/store and xchg/cmpxchg is only guaranteed if
the architecture has native RmW support, hence i8/i16 is currently
AtomicImpl only when CONFIG_ARCH_SUPPORTS_ATOMIC_RWM=y.
[boqun: Make i8/i16 AtomicImpl only when
CONFIG_ARCH_SUPPORTS_ATOMIC_RWM=y]
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251228120546.1602275-4-fujita.tomonori@gmail.com
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions