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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-13 11:58:07 +0100 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-13 11:58:07 +0100 |
| commit | a30e960328fc60e066967d1224ecd5b6e173cda3 (patch) | |
| tree | 20fe8ff72d39d2c4fe3d867a19e88621bbd095c5 /sysdeps | |
| parent | f278835f594740f5913001430641cf1da4878670 (diff) | |
| download | glibc-a30e960328fc60e066967d1224ecd5b6e173cda3.zip glibc-a30e960328fc60e066967d1224ecd5b6e173cda3.tar.gz glibc-a30e960328fc60e066967d1224ecd5b6e173cda3.tar.bz2 | |
Use relaxed atomics since there is no MO dependence
Replace the 3 uses of atomic_bit_set and atomic_bit_test_set with
atomic_fetch_or_relaxed. Using relaxed MO is correct since the
atomics are used to ensure memory is released only once.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/nptl/pthreadP.h | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/sysdeps/nptl/pthreadP.h b/sysdeps/nptl/pthreadP.h index 39af275..c8521b0 100644 --- a/sysdeps/nptl/pthreadP.h +++ b/sysdeps/nptl/pthreadP.h @@ -43,12 +43,6 @@ atomic_compare_and_exchange_val_acq (&(descr)->member, new, old) #endif -#ifndef THREAD_ATOMIC_BIT_SET -# define THREAD_ATOMIC_BIT_SET(descr, member, bit) \ - atomic_bit_set (&(descr)->member, bit) -#endif - - static inline short max_adaptive_count (void) { #if HAVE_TUNABLES @@ -276,7 +270,7 @@ __do_cancel (void) struct pthread *self = THREAD_SELF; /* Make sure we get no more cancellations. */ - atomic_bit_set (&self->cancelhandling, EXITING_BIT); + atomic_fetch_or_relaxed (&self->cancelhandling, EXITING_BITMASK); __pthread_unwind ((__pthread_unwind_buf_t *) THREAD_GETMEM (self, cleanup_jmp_buf)); |