Btrfs: convert smp_mb__{before,after}_clear_bit
The new call is smp_mb__{before,after}_atomic. The __ gives us extra
protection from the atomic rays.
Signed-off-by: NChris Mason <clm@fb.com>
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The new call is smp_mb__{before,after}_atomic. The __ gives us extra
protection from the atomic rays.
Signed-off-by: NChris Mason <clm@fb.com>