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authorYang Shi <yang.shi@linux.alibaba.com>2018-08-17 15:45:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-17 16:20:28 -0700
commit87aa752906ecf69842ef5ac1d0677aa75a4e0aac (patch)
treeb51124e7e0b07ca04007725bf594a1ae11176f0c /mm
parentc2231020ea7b53d486395dbd8d3216e0dd1fc7ee (diff)
downloadlinux-87aa752906ecf69842ef5ac1d0677aa75a4e0aac.tar.bz2
mm: thp: inc counter for collapsed shmem THP
/sys/kernel/mm/transparent_hugepage/khugepaged/pages_collapsed is used to record the counter of collapsed THP, but it just gets inc'ed in anonymous THP collapse path, do this for shmem THP collapse too. Link: http://lkml.kernel.org/r/1529622949-75504-2-git-send-email-yang.shi@linux.alibaba.com Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/khugepaged.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 22da712022de..79d55e10bca9 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1516,6 +1516,8 @@ tree_unlocked:
unlock_page(new_page);
*hpage = NULL;
+
+ khugepaged_pages_collapsed++;
} else {
/* Something went wrong: rollback changes to the radix-tree */
shmem_uncharge(mapping->host, nr_none);