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authorMinchan Kim <minchan@kernel.org>2015-04-16 01:15:33 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-04-16 01:35:20 +0200
commitd3d07c92ff69f784bb8c3279fa87678bfa2f7f6f (patch)
treeea13c63b576a82c469a5a0ef9c874f64964837a6 /mm/page_ext.c
parentzsmalloc: support compaction (diff)
downloadlinux-d3d07c92ff69f784bb8c3279fa87678bfa2f7f6f.tar.xz
linux-d3d07c92ff69f784bb8c3279fa87678bfa2f7f6f.zip
zsmalloc: adjust ZS_ALMOST_FULL
Curretly, zsmalloc regards a zspage as ZS_ALMOST_EMPTY if the zspage has under 1/4 used objects(ie, fullness_threshold_frac). It could make result in loose packing since zsmalloc migrates only ZS_ALMOST_EMPTY zspage out. This patch changes the rule so that zsmalloc makes zspage which has above 3/4 used object ZS_ALMOST_FULL so it could make tight packing. Signed-off-by: Minchan Kim <minchan@kernel.org> Cc: Juneho Choi <juno.choi@lge.com> Cc: Gunho Lee <gunho.lee@lge.com> Cc: Luigi Semenzato <semenzato@google.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Seth Jennings <sjennings@variantweb.net> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Jerome Marchand <jmarchan@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_ext.c')
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