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Merge tag 'fs.acl.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping

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Pull vfs acl update from Christian Brauner:
 "This contains a single update to the internal get acl method and
  replaces an open-coded cmpxchg() comparison with with try_cmpxchg().

  It's clearer and also beneficial on some architectures"

* tag 'fs.acl.v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping:
  posix_acl: Use try_cmpxchg in get_acl
This commit is contained in:
Linus Torvalds
2023-02-20 12:14:33 -08:00
parent ea5aac6fae 4e1da8fe03
commit 91bc559d8d
1 changed files with 1 additions and 1 deletions
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2
fs/posix_acl.c
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@@ -175,7 +175,7 @@ static struct posix_acl *__get_acl(struct mnt_idmap *idmap,
* Cache the result, but only if our sentinel is still in place.
*/
posix_acl_dup(acl);
if (unlikely(cmpxchg(p, sentinel, acl) != sentinel))
if (unlikely(!try_cmpxchg(p, &sentinel, acl)))
posix_acl_release(acl);
return acl;
}