Use non atomic unlock
Slub can use the non-atomic version to unlock because other flags will not get modified with the lock held. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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@ -1219,7 +1219,7 @@ static __always_inline void slab_lock(struct page *page)
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static __always_inline void slab_unlock(struct page *page)
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{
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bit_spin_unlock(PG_locked, &page->flags);
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__bit_spin_unlock(PG_locked, &page->flags);
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}
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static __always_inline int slab_trylock(struct page *page)
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