Mark Rutland d12157efc8 locking/atomic: make atomic*_{cmp,}xchg optional ... Most architectures define the atomic/atomic64 xchg and cmpxchg operations in terms of arch_xchg and arch_cmpxchg respectfully. Add fallbacks for these cases and remove the trivial cases from arch code. On some architectures the existing definitions are kept as these are used to build other arch_atomic*() operations. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230605070124.3741859-5-mark.rutland@arm.com		2023-06-05 09:57:14 +02:00
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fallbacks	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
atomic-tbl.sh	locking/atomics: Change 'fold' to 'grep'	2019-02-11 14:27:33 +01:00
atomics.tbl	atomics: Provide atomic_add_negative() variants	2023-03-28 10:39:29 +02:00
gen-atomic-fallback.sh	instrumentation: Wire up cmpxchg128()	2023-06-05 09:36:36 +02:00
gen-atomic-instrumented.sh	arch: Remove cmpxchg_double	2023-06-05 09:36:39 +02:00
gen-atomic-long.sh	locking/atomic: add arch_atomic_long*()	2021-07-16 18:46:45 +02:00
gen-atomics.sh	locking/atomic: centralize generated headers	2021-07-16 18:46:45 +02:00