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[PATCH] mm: make __put_page internal

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Remove __put_page from outside the core mm/.  It is dangerous because it does
not handle compound pages nicely, and misses 1->0 transitions.  If a user
later appears that really needs the extra speed we can reevaluate.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nick Piggin 2006-03-22 00:08:33 -08:00 • committed by Linus Torvalds
parent 4fa4f53bf9
commit 0f8053a509
4 changed files with 15 additions and 1 deletions
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include/linux/mm.h
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@ -308,7 +308,6 @@ static inline int get_page_unless_zero(struct page *page)
}
#define set_page_count(p,v) atomic_set(&(p)->_count, (v))
#define __put_page(p) atomic_dec(&(p)->_count)
extern void FASTCALL(__page_cache_release(struct page *));