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authorJohannes Weiner <hannes@cmpxchg.org>2014-10-29 14:50:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-29 16:33:14 -0700
commit3a3c02ecf7f2852f122d6d16fb9b3d9cb0c6f201 (patch)
tree8732d153f0080136fe9ffa155df6c75a8343762b /mm
parentea5d05b34aca25c066e0699512d0ffbd8ee6ac3e (diff)
downloadlinux-sh-3a3c02ecf7f2852f122d6d16fb9b3d9cb0c6f201.tar.gz
mm: page-writeback: inline account_page_dirtied() into single caller
A follow-up patch would have changed the call signature. To save the trouble, just fold it instead. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Cc: Vladimir Davydov <vdavydov@parallels.com> Cc: <stable@vger.kernel.org> [3.17.x] 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/page-writeback.c23
1 files changed, 4 insertions, 19 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index ff24c9d83112..ff6a5b07211e 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2116,23 +2116,6 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
EXPORT_SYMBOL(account_page_dirtied);
/*
- * Helper function for set_page_writeback family.
- *
- * The caller must hold mem_cgroup_begin/end_update_page_stat() lock
- * while calling this function.
- * See test_set_page_writeback for example.
- *
- * NOTE: Unlike account_page_dirtied this does not rely on being atomic
- * wrt interrupts.
- */
-void account_page_writeback(struct page *page)
-{
- mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
- inc_zone_page_state(page, NR_WRITEBACK);
-}
-EXPORT_SYMBOL(account_page_writeback);
-
-/*
* For address_spaces which do not use buffers. Just tag the page as dirty in
* its radix tree.
*
@@ -2410,8 +2393,10 @@ int __test_set_page_writeback(struct page *page, bool keep_write)
} else {
ret = TestSetPageWriteback(page);
}
- if (!ret)
- account_page_writeback(page);
+ if (!ret) {
+ mem_cgroup_inc_page_stat(page, MEM_CGROUP_STAT_WRITEBACK);
+ inc_zone_page_state(page, NR_WRITEBACK);
+ }
mem_cgroup_end_update_page_stat(page, &locked, &memcg_flags);
return ret;