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author | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-06 16:49:01 +0100 |
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committer | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-06 16:49:01 +0100 |
commit | 89d40cacd0aed35e2546513ce01924b879523e46 (patch) | |
tree | 7584690730ae5c56b7b4421345c233feac64ce9e /malloc/malloc.c | |
parent | 76fe56020e7ef354685b2284580ac1630c078a2b (diff) | |
download | glibc-89d40cacd0aed35e2546513ce01924b879523e46.tar.gz glibc-89d40cacd0aed35e2546513ce01924b879523e46.tar.xz glibc-89d40cacd0aed35e2546513ce01924b879523e46.zip |
malloc: Use C11 atomics rather than atomic_exchange_and_add
Replace a few counters using atomic_exchange_and_add with atomic_fetch_add_relaxed. Reviewed-by: Florian Weimer <fweimer@redhat.com>
Diffstat (limited to 'malloc/malloc.c')
-rw-r--r-- | malloc/malloc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index 29fa71b3b2..ecec901b14 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -2460,11 +2460,11 @@ sysmalloc_mmap (INTERNAL_SIZE_T nb, size_t pagesize, int extra_flags, mstate av) } /* update statistics */ - int new = atomic_exchange_and_add (&mp_.n_mmaps, 1) + 1; + int new = atomic_fetch_add_relaxed (&mp_.n_mmaps, 1) + 1; atomic_max (&mp_.max_n_mmaps, new); unsigned long sum; - sum = atomic_exchange_and_add (&mp_.mmapped_mem, size) + size; + sum = atomic_fetch_add_relaxed (&mp_.mmapped_mem, size) + size; atomic_max (&mp_.max_mmapped_mem, sum); check_chunk (av, p); @@ -3084,7 +3084,7 @@ mremap_chunk (mchunkptr p, size_t new_size) set_head (p, (new_size - offset) | IS_MMAPPED); INTERNAL_SIZE_T new; - new = atomic_exchange_and_add (&mp_.mmapped_mem, new_size - size - offset) + new = atomic_fetch_add_relaxed (&mp_.mmapped_mem, new_size - size - offset) + new_size - size - offset; atomic_max (&mp_.max_mmapped_mem, new); return p; |