On Wed, Dec 21, 2022 at 08:35:40PM +0100, Uros Bizjak wrote: > Use try_cmpxchg instead of cmpxchg (*ptr, old, new) == old > in get_acl. x86 CMPXCHG instruction returns success in ZF flag, > so this change saves a compare after cmpxchg (and related move > instruction in front of cmpxchg). > > No functional change intended. > > Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx> > Cc: Christian Brauner <brauner@xxxxxxxxxx> > Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx> > --- Looks ok to me. But it's not urgent so I'll circle back to this post -rc1. Thanks! Christian
