swap: update function comment of release_pages
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -278,9 +278,10 @@ int lru_add_drain_all(void)
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* Avoid taking zone->lru_lock if possible, but if it is taken, retain it
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* for the remainder of the operation.
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*
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* The locking in this function is against shrink_cache(): we recheck the
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* page count inside the lock to see whether shrink_cache grabbed the page
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* via the LRU. If it did, give up: shrink_cache will free it.
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* The locking in this function is against shrink_inactive_list(): we recheck
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* the page count inside the lock to see whether shrink_inactive_list()
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* grabbed the page via the LRU. If it did, give up: shrink_inactive_list()
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* will free it.
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*/
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void release_pages(struct page **pages, int nr, int cold)
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{
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