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| /openbmc/linux/fs/btrfs/ |
| H A D | volumes.h | 4660c49f Fri Oct 20 10:10:58 CDT 2017 Nikolay Borisov <nborisov@suse.com> btrfs: Remove redundant memory barrier in dev stats
As per atomic_t.txt documentation :
- RMW operations that have a return value are fully ordered;
atomic_xchg is one such operation so it already includes everything it
needs w.r.t memory ordering and add a comment to be more explicit about
that.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
4660c49f Fri Oct 20 10:10:58 CDT 2017 Nikolay Borisov <nborisov@suse.com> btrfs: Remove redundant memory barrier in dev stats
As per atomic_t.txt documentation :
- RMW operations that have a return value are fully ordered;
atomic_xchg is one such operation so it already includes everything it
needs w.r.t memory ordering and add a comment to be more explicit about
that.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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