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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-09 14:11:23 +0100 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2022-09-09 14:11:23 +0100 |
| commit | 53b251c9ff03ab59ba58fcddb9dc97c69f25fadc (patch) | |
| tree | 7e21c61f63f05596fd73e342b91f04291bfdebde | |
| parent | 83859e1115269cf56d21669361d4ddbe2687831c (diff) | |
| download | glibc-53b251c9ff03ab59ba58fcddb9dc97c69f25fadc.zip glibc-53b251c9ff03ab59ba58fcddb9dc97c69f25fadc.tar.gz glibc-53b251c9ff03ab59ba58fcddb9dc97c69f25fadc.tar.bz2 | |
Use C11 atomics instead atomic_add(_zero)
Replace atomic_add and atomic_add_zero with atomic_fetch_add_relaxed.
Reviewed-by: DJ Delorie <dj@redhat.com>
| -rw-r--r-- | malloc/malloc.c | 2 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/check_pf.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c index ecec901..aea4993 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -3034,7 +3034,7 @@ munmap_chunk (mchunkptr p) malloc_printerr ("munmap_chunk(): invalid pointer"); atomic_decrement (&mp_.n_mmaps); - atomic_add (&mp_.mmapped_mem, -total_size); + atomic_fetch_add_relaxed (&mp_.mmapped_mem, -total_size); /* If munmap failed the process virtual memory address space is in a bad shape. Just leave the block hanging around, the process will diff --git a/sysdeps/unix/sysv/linux/check_pf.c b/sysdeps/unix/sysv/linux/check_pf.c index fe73fe3..4d486ca 100644 --- a/sysdeps/unix/sysv/linux/check_pf.c +++ b/sysdeps/unix/sysv/linux/check_pf.c @@ -278,7 +278,7 @@ make_request (int fd, pid_t pid) { free (result); - atomic_add (&noai6ai_cached.usecnt, 2); + atomic_fetch_add_relaxed (&noai6ai_cached.usecnt, 2); noai6ai_cached.seen_ipv4 = seen_ipv4; noai6ai_cached.seen_ipv6 = seen_ipv6; result = &noai6ai_cached; @@ -349,7 +349,7 @@ __check_pf (bool *seen_ipv4, bool *seen_ipv6, *in6ai = data->in6ai; if (olddata != NULL && olddata->usecnt > 0 - && atomic_add_zero (&olddata->usecnt, -1)) + && atomic_fetch_add_relaxed (&olddata->usecnt, -1) == 1) free (olddata); return; @@ -377,7 +377,7 @@ __free_in6ai (struct in6addrinfo *ai) (struct cached_data *) ((char *) ai - offsetof (struct cached_data, in6ai)); - if (atomic_add_zero (&data->usecnt, -1)) + if (atomic_fetch_add_relaxed (&data->usecnt, -1) == 1) { __libc_lock_lock (lock); |