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mm: vmscan: Move pages that fail swapout to LRU active list

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Move pages that fail swapout to the LRU active list to reduce
pressure on swap device when swapping out is already failing.
This helps when using a pseudo swap device such as zram which
starts failing when memory is low.

Change-Id: Ib136cd0a744378aa93d837a24b9143ee818c80b3
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
This commit is contained in:
Olav Haugan 2013-11-04 10:46:16 -08:00
parent f34a2d7836
commit 4c2fde4241
1 changed files with 2 additions and 0 deletions
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mm/vmscan.c
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@ -499,6 +499,8 @@ static pageout_t pageout(struct page *page, struct address_space *mapping,
if (!PageWriteback(page)) { if (!PageWriteback(page)) {
/* synchronous write or broken a_ops? */ /* synchronous write or broken a_ops? */
ClearPageReclaim(page); ClearPageReclaim(page);
if (PageError(page))
return PAGE_ACTIVATE;
} }
trace_mm_vmscan_writepage(page, trace_reclaim_flags(page)); trace_mm_vmscan_writepage(page, trace_reclaim_flags(page));
inc_zone_page_state(page, NR_VMSCAN_WRITE); inc_zone_page_state(page, NR_VMSCAN_WRITE);