]> err.no Git - linux-2.6/commit
Be more agressive about stealing when MIGRATE_RECLAIMABLE allocations fallback
authorMel Gorman <mel@csn.ul.ie>
Tue, 16 Oct 2007 08:25:55 +0000 (01:25 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 16 Oct 2007 16:43:00 +0000 (09:43 -0700)
commit46dafbca2bba811665b01d8cedf911204820623c
treec0dbc78b3da9749f257fa8756cd3133f39cd4f88
parent5adc5be7cd1bcef6bb64f5255d2a33f20a3cf5be
Be more agressive about stealing when MIGRATE_RECLAIMABLE allocations fallback

MIGRATE_RECLAIMABLE allocations tend to be very bursty in nature like when
updatedb starts.  It is likely this will occur in situations where MAX_ORDER
blocks of pages are not free.  This means that updatedb can scatter
MIGRATE_RECLAIMABLE pages throughout the address space.  This patch is more
agressive about stealing blocks of pages for MIGRATE_RECLAIMABLE.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/page_alloc.c