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authorMel Gorman <mgorman@techsingularity.net>2016-05-19 17:14:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-19 19:12:14 -0700
commit0b423ca22f95a867f789aab1fe57ee4e378df43b (patch)
treecf0231b630d9be51604133f20d56a4e617914a33 /mm/page_owner.c
parente5b31ac2ca2cd0cf6bf2fcbb708ed01466c89aaa (diff)
downloadlinux-0b423ca22f95a867f789aab1fe57ee4e378df43b.tar.gz
mm, page_alloc: inline pageblock lookup in page free fast paths
The function call overhead of get_pfnblock_flags_mask() is measurable in the page free paths. This patch uses an inlined version that is faster. Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_owner.c')
-rw-r--r--mm/page_owner.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 438768c092ac..792b56da13d8 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -143,7 +143,7 @@ print_page_owner(char __user *buf, size_t count, unsigned long pfn,
goto err;
/* Print information relevant to grouping pages by mobility */
- pageblock_mt = get_pfnblock_migratetype(page, pfn);
+ pageblock_mt = get_pageblock_migratetype(page);
page_mt = gfpflags_to_migratetype(page_ext->gfp_mask);
ret += snprintf(kbuf + ret, count - ret,
"PFN %lu type %s Block %lu type %s Flags %#lx(%pGp)\n",