Hugh Dickins b065b4321f shmem: cleanup shmem_add_to_page_cache
shmem_add_to_page_cache() has three callsites, but only one of them wants
the radix_tree_preload() (an exceptional entry guarantees that the radix
tree node is present in the other cases), and only that site can achieve
mem_cgroup_uncharge_cache_page() (PageSwapCache makes it a no-op in the
other cases).  We did it this way originally to reflect
add_to_page_cache_locked(); but it's confusing now, so move the radix_tree
preloading and mem_cgroup uncharging to that one caller.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-07-11 16:04:48 -07:00
..
2012-05-29 23:28:33 -04:00
2012-01-03 22:54:56 -05:00
2012-05-30 08:48:13 -07:00
2011-07-26 16:49:47 -07:00
2012-06-20 14:39:36 -07:00
2012-06-20 14:39:36 -07:00
2012-06-04 17:17:31 -04:00
2012-06-20 14:39:36 -07:00
2012-06-20 14:39:36 -07:00
2012-06-20 14:39:36 -07:00
2012-06-20 14:39:36 -07:00
2012-05-29 16:22:19 -07:00
2012-07-11 16:04:48 -07:00
2012-05-29 16:22:28 -07:00
2012-05-29 16:22:23 -07:00
2012-06-01 10:37:18 -04:00