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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-17 14:42:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-17 14:42:19 -0800
commit7a608572a282a74978e10fd6cd63090aebe29f5c (patch)
tree03e52f73d7c35ffcea8f46e14ec569da818a7631 /mm/vmscan.c
parent9e8a462a0141b12e22c4a2f0c12e0542770401f0 (diff)
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Revert "mm: batch activate_page() to reduce lock contention"
This reverts commit 744ed1442757767ffede5008bb13e0805085902e. 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 744ed1442757 ("mm: batch activate_page() to reduce lock contention") and d8505dee1a87 ("mm: simplify code of swap.c"). This reverts the first of them. Reported-and-debugged-by: Chris Mason <chris.mason@oracle.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jens Axboe <jaxboe@fusionio.com> Cc: linux-mm <linux-mm@kvack.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
-rw-r--r--mm/vmscan.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 99999a9b2b0..47a50962ce8 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1271,16 +1271,14 @@ putback_lru_pages(struct zone *zone, struct scan_control *sc,
spin_lock_irq(&zone->lru_lock);
continue;
}
+ SetPageLRU(page);
lru = page_lru(page);
+ add_page_to_lru_list(zone, page, lru);
if (is_active_lru(lru)) {
int file = is_file_lru(lru);
int numpages = hpage_nr_pages(page);
reclaim_stat->recent_rotated[file] += numpages;
- if (putback_active_lru_page(zone, page))
- continue;
}
- SetPageLRU(page);
- add_page_to_lru_list(zone, page, lru);
if (!pagevec_add(&pvec, page)) {
spin_unlock_irq(&zone->lru_lock);
__pagevec_release(&pvec);