diff options
| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2017-10-13 15:57:43 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-13 16:18:32 -0700 |
| commit | de55c8b251974247edda38e952da8e8dd71683ec (patch) | |
| tree | d7cbecb649db0588d47ea6b439aa9209dff908b4 | |
| parent | 8a1ac5dc7be09883051b1bf89a5e57d7ad850fa5 (diff) | |
| download | lwn-de55c8b251974247edda38e952da8e8dd71683ec.tar.gz lwn-de55c8b251974247edda38e952da8e8dd71683ec.zip | |
mm/mempolicy: fix NUMA_INTERLEAVE_HIT counter
Commit 3a321d2a3dde ("mm: change the call sites of numa statistics
items") separated NUMA counters from zone counters, but the
NUMA_INTERLEAVE_HIT call site wasn't updated to use the new interface.
So alloc_page_interleave() actually increments NR_ZONE_INACTIVE_FILE
instead of NUMA_INTERLEAVE_HIT.
Fix this by using __inc_numa_state() interface to increment
NUMA_INTERLEAVE_HIT.
Link: http://lkml.kernel.org/r/20171003191003.8573-1-aryabinin@virtuozzo.com
Fixes: 3a321d2a3dde ("mm: change the call sites of numa statistics items")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Kemi Wang <kemi.wang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/mempolicy.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 006ba625c0b8..a2af6d58a68f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1920,8 +1920,11 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order, struct page *page; page = __alloc_pages(gfp, order, nid); - if (page && page_to_nid(page) == nid) - inc_zone_page_state(page, NUMA_INTERLEAVE_HIT); + if (page && page_to_nid(page) == nid) { + preempt_disable(); + __inc_numa_state(page_zone(page), NUMA_INTERLEAVE_HIT); + preempt_enable(); + } return page; } |