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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2016-07-26 15:25:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 16:19:19 -0700
commit95ecedcd6abbb05d8177331e2fa697888dcd634b (patch)
tree7635af0727ac5adec84761793f441f8862d0091c /mm/memory.c
parent1010245964415bb7403463115bab2cd26244b445 (diff)
thp, vmstats: add counters for huge file pages
THP_FILE_ALLOC: how many times huge page was allocated and put page cache. THP_FILE_MAPPED: how many times file huge page was mapped. Link: http://lkml.kernel.org/r/1466021202-61880-13-git-send-email-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 650622a3a0a1..10a424eca8a4 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2968,6 +2968,7 @@ static int do_set_pmd(struct fault_env *fe, struct page *page)
/* fault is handled */
ret = 0;
+ count_vm_event(THP_FILE_MAPPED);
out:
spin_unlock(fe->ptl);
return ret;