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| author | Johannes Weiner <hannes@cmpxchg.org> | 2014-08-06 16:06:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 18:01:18 -0700 |
| commit | 0b06496a338e83627dc5f0d25323e7a1ae9cb87d (patch) | |
| tree | 87f1f3cbdf0a32dfbf96a177401dcfa7e06b007a /mm/internal.h | |
| parent | 8d07429319b2836604061f48f7e3dfe78acc060c (diff) | |
| download | linux-0b06496a338e83627dc5f0d25323e7a1ae9cb87d.tar.bz2 | |
mm: vmscan: rework compaction-ready signaling in direct reclaim
Page reclaim for a higher-order page runs until compaction is ready,
then aborts and signals this situation through the return value of
shrink_zones(). This is an oddly specific signal to encode in the
return value of shrink_zones(), though, and can be quite confusing.
Introduce sc->compaction_ready and signal the compactability of the
zones out-of-band to free up the return value of shrink_zones() for
actual zone reclaimability.
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
0 files changed, 0 insertions, 0 deletions