rust: helpers: Add i8/i16 atomic try_cmpxchg helpers

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Add i8/i16 atomic try_cmpxchg helpers that call try_cmpxchg() macro
implementing atomic try_cmpxchg using architecture-specific
instructions.

[boqun: Add comments explaining CONFIG_ARCH_SUPPORTS_ATOMIC_RMW and use
try_cmpxchg() instead of raw_try_cmpxchg()]

Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251227115951.1424458-2-fujita.tomonori@gmail.com

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FUJITA Tomonori 2025-12-27 20:59:48 +09:00 • committed by Boqun Feng

parent 910cbddc41

commit 164e4b5600

1 changed files with 17 additions and 0 deletions

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rust/helpers/atomic_ext.c

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