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authorIngo Molnar <mingo@kernel.org>2019-10-28 12:38:26 +0100
committerIngo Molnar <mingo@kernel.org>2019-10-28 12:38:26 +0100
commit65133033ee6ee34724ea3d82d5d1cfc6839ffdae (patch)
tree2fca9fd5630bbfd503a75e3cc69f30056a629c92 /mm/page_alloc.c
parent27a0a90d6301dd883a748538e4db692a5fb923e1 (diff)
parent652521d460cbfa24ef27717b4b28acfac4281be6 (diff)
Merge branch 'perf/urgent' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c0b2e0306720..ecc3dbad606b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4473,12 +4473,14 @@ retry_cpuset:
if (page)
goto got_pg;
- if (order >= pageblock_order && (gfp_mask & __GFP_IO)) {
+ if (order >= pageblock_order && (gfp_mask & __GFP_IO) &&
+ !(gfp_mask & __GFP_RETRY_MAYFAIL)) {
/*
* If allocating entire pageblock(s) and compaction
* failed because all zones are below low watermarks
* or is prohibited because it recently failed at this
- * order, fail immediately.
+ * order, fail immediately unless the allocator has
+ * requested compaction and reclaim retry.
*
* Reclaim is
* - potentially very expensive because zones are far