slab: print slabinfo header in seq show
authorVladimir Davydov <vdavydov@parallels.com>
Wed, 10 Dec 2014 23:42:16 +0000 (15:42 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 11 Dec 2014 01:41:04 +0000 (17:41 -0800)
commit1df3b26f201f7f08852c14596bc3ee6ba1826f11
tree8eaf11024072d71c3701bc5d25e5d27f446f2ae1
parentb455def28d8a22aee4a13d065b3fd1d296833606
slab: print slabinfo header in seq show

Currently we print the slabinfo header in the seq start method, which
makes it unusable for showing leaks, so we have leaks_show, which does
practically the same as s_show except it doesn't show the header.

However, we can print the header in the seq show method - we only need
to check if the current element is the first on the list.  This will
allow us to use the same set of seq iterators for both leaks and
slabinfo reporting, which is nice.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/slab.c
mm/slab.h
mm/slab_common.c