linux/drivers/base
KOSAKI Motohiro 4b02108ac1 mm: oom analysis: add shmem vmstat
Recently we encountered OOM problems due to memory use of the GEM cache.
Generally a large amuont of Shmem/Tmpfs pages tend to create a memory
shortage problem.

We often use the following calculation to determine the amount of shmem
pages:

shmem = NR_ACTIVE_ANON + NR_INACTIVE_ANON - NR_ANON_PAGES

however the expression does not consider isolated and mlocked pages.

This patch adds explicit accounting for pages used by shmem and tmpfs.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Acked-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 07:17:27 -07:00
..
power
Kconfig Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev 2009-09-15 09:50:49 -07:00
Makefile Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev 2009-09-15 09:50:49 -07:00
attribute_container.c
base.h Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev 2009-09-15 09:50:49 -07:00
bus.c
class.c
core.c Driver-Core: extend devnode callbacks to provide permissions 2009-09-19 12:50:38 -07:00
cpu.c
dd.c
devres.c
devtmpfs.c Driver-Core: extend devnode callbacks to provide permissions 2009-09-19 12:50:38 -07:00
dma-coherent.c
dma-mapping.c
driver.c
firmware.c
firmware_class.c
hypervisor.c
init.c Driver Core: devtmpfs - kernel-maintained tmpfs-based /dev 2009-09-15 09:50:49 -07:00
iommu.c
isa.c
map.c
memory.c
module.c
node.c mm: oom analysis: add shmem vmstat 2009-09-22 07:17:27 -07:00
platform.c
sys.c
topology.c
transport_class.c