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Revert "mm: batch activate_page() to reduce lock contention"

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This reverts commit 744ed14427.

Chris Mason ended up chasing down some page allocation errors and pages
stuck waiting on the IO scheduler, and was able to narrow it down to two
commits: commit 744ed14427 ("mm: batch activate_page() to reduce lock
contention") and d8505dee1a ("mm: simplify code of swap.c").

This reverts the first of them.

Reported-and-debugged-by: Chris Mason <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: linux-mm <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Shaohua Li <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Linus Torvalds 2011-01-17 14:42:19 -08:00
commit 7a608572a2
3 changed files with 13 additions and 92 deletions
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9
mm/internal.h
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@ -39,15 +39,6 @@ static inline void __put_page(struct page *page)
extern unsigned long highest_memmap_pfn;
#ifdef CONFIG_SMP
extern int putback_active_lru_page(struct zone *zone, struct page *page);
#else
static inline int putback_active_lru_page(struct zone *zone, struct page *page)
{
return 0;
}
#endif
/*
* in mm/vmscan.c:
*/