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| author | Mel Gorman <mgorman@techsingularity.net> | 2016-07-28 15:47:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-28 16:07:41 -0700 |
| commit | d7f05528eedb047efe2288cff777676b028747b6 (patch) | |
| tree | dab403a296f8a7ab6bdf2a6a28cad43fdaaddd5f /firmware/ihex2fw.c | |
| parent | f8d1a31163fcb3bf93f6c78770c3c1915f065bf9 (diff) | |
| download | blackbird-op-linux-d7f05528eedb047efe2288cff777676b028747b6.tar.gz blackbird-op-linux-d7f05528eedb047efe2288cff777676b028747b6.zip | |
mm, vmscan: account for skipped pages as a partial scan
Page reclaim determines whether a pgdat is unreclaimable by examining
how many pages have been scanned since a page was freed and comparing
that to the LRU sizes. Skipped pages are not reclaim candidates but
contribute to scanned. This can prematurely mark a pgdat as
unreclaimable and trigger an OOM kill.
This patch accounts for skipped pages as a partial scan so that an
unreclaimable pgdat will still be marked as such but by scaling the cost
of a skip, it'll avoid the pgdat being marked prematurely.
Link: http://lkml.kernel.org/r/1469110261-7365-6-git-send-email-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'firmware/ihex2fw.c')
0 files changed, 0 insertions, 0 deletions
