aboutsummaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
authorLucas Stach2017-01-24 15:18:05 -0800
committerLinus Torvalds2017-01-24 16:26:14 -0800
commit424f6c4818bbf1b8ccf58aa012ecc19c0bb9b446 (patch)
tree186092c8fa59000397fd7c573bc0ffeb896880d4 /fs
parentaa2efd5ea4041754da4046c3d2e7edaac9526258 (diff)
mm: alloc_contig: re-allow CMA to compact FS pages
Commit 73e64c51afc5 ("mm, compaction: allow compaction for GFP_NOFS requests") changed compation to skip FS pages if not explicitly allowed to touch them, but missed to update the CMA compact_control. This leads to a very high isolation failure rate, crippling performance of CMA even on a lightly loaded system. Re-allow CMA to compact FS pages by setting the correct GFP flags, restoring CMA behavior and performance to the kernel 4.9 level. Fixes: 73e64c51afc5 (mm, compaction: allow compaction for GFP_NOFS requests) Link: http://lkml.kernel.org/r/20170113115155.24335-1-l.stach@pengutronix.de Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions