mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
ec570320b0
All xchg() and cmpxchg() ops are atomic RMWs, but currently we instrument these with instrument_atomic_write() rather than instrument_atomic_read_write(), missing the read aspect. Similarly, all try_cmpxchg() ops are non-atomic RMWs on *oldp, but we instrument these accesses with instrument_atomic_write() rather than instrument_read_write(), missing the read aspect and erroneously marking these as atomic. Fix the instrumentation for both points. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20230413160644.490976-1-mark.rutland@arm.com Cc: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| fallbacks | ||
| atomic-tbl.sh | ||
| atomics.tbl | ||
| gen-atomic-fallback.sh | ||
| gen-atomic-instrumented.sh | ||
| gen-atomic-long.sh | ||
| gen-atomics.sh | ||