diff options
| author | Joonsoo Kim <[email protected]> | 2016-03-15 14:57:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-03-15 16:55:16 -0700 |
| commit | e1409c325fdc1fef7b3d8025c51892355f065d15 (patch) | |
| tree | 43486b8130eba24ee7380e0ccddf49551fd0b420 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 623446e4dc45b37740268165107cc63abb3022f0 (diff) | |
mm/compaction: pass only pageblock aligned range to pageblock_pfn_to_page
pageblock_pfn_to_page() is used to check there is valid pfn and all
pages in the pageblock is in a single zone. If there is a hole in the
pageblock, passing arbitrary position to pageblock_pfn_to_page() could
cause to skip whole pageblock scanning, instead of just skipping the
hole page. For deterministic behaviour, it's better to always pass
pageblock aligned range to pageblock_pfn_to_page(). It will also help
further optimization on pageblock_pfn_to_page() in the following patch.
Signed-off-by: Joonsoo Kim <[email protected]>
Cc: Aaron Lu <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Mel Gorman <[email protected]>
Cc: Rik van Riel <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions