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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>
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@ -3034,7 +3034,7 @@ munmap_chunk (mchunkptr p)
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malloc_printerr ("munmap_chunk(): invalid pointer");
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malloc_printerr ("munmap_chunk(): invalid pointer");
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atomic_decrement (&mp_.n_mmaps);
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atomic_decrement (&mp_.n_mmaps);
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atomic_add (&mp_.mmapped_mem, -total_size);
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atomic_fetch_add_relaxed (&mp_.mmapped_mem, -total_size);
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/* If munmap failed the process virtual memory address space is in a
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/* If munmap failed the process virtual memory address space is in a
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bad shape. Just leave the block hanging around, the process will
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bad shape. Just leave the block hanging around, the process will
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@ -278,7 +278,7 @@ make_request (int fd, pid_t pid)
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{
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{
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free (result);
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free (result);
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atomic_add (&noai6ai_cached.usecnt, 2);
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atomic_fetch_add_relaxed (&noai6ai_cached.usecnt, 2);
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noai6ai_cached.seen_ipv4 = seen_ipv4;
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noai6ai_cached.seen_ipv4 = seen_ipv4;
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noai6ai_cached.seen_ipv6 = seen_ipv6;
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noai6ai_cached.seen_ipv6 = seen_ipv6;
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result = &noai6ai_cached;
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result = &noai6ai_cached;
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@ -349,7 +349,7 @@ __check_pf (bool *seen_ipv4, bool *seen_ipv6,
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*in6ai = data->in6ai;
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*in6ai = data->in6ai;
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if (olddata != NULL && olddata->usecnt > 0
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if (olddata != NULL && olddata->usecnt > 0
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&& atomic_add_zero (&olddata->usecnt, -1))
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&& atomic_fetch_add_relaxed (&olddata->usecnt, -1) == 1)
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free (olddata);
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free (olddata);
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return;
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return;
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@ -377,7 +377,7 @@ __free_in6ai (struct in6addrinfo *ai)
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(struct cached_data *) ((char *) ai
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(struct cached_data *) ((char *) ai
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- offsetof (struct cached_data, in6ai));
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- offsetof (struct cached_data, in6ai));
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if (atomic_add_zero (&data->usecnt, -1))
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if (atomic_fetch_add_relaxed (&data->usecnt, -1) == 1)
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{
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{
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__libc_lock_lock (lock);
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__libc_lock_lock (lock);
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