linux-hardened/drivers/base
Christoph Lameter f3dbd34460 [PATCH] zoned vm counters: split NR_ANON_PAGES off from NR_FILE_MAPPED
The current NR_FILE_MAPPED is used by zone reclaim and the dirty load
calculation as the number of mapped pagecache pages.  However, that is not
true.  NR_FILE_MAPPED includes the mapped anonymous pages.  This patch
separates those and therefore allows an accurate tracking of the anonymous
pages per zone.

It then becomes possible to determine the number of unmapped pages per zone
and we can avoid scanning for unmapped pages if there are none.

Also it may now be possible to determine the mapped/unmapped ratio in
get_dirty_limit.  Isnt the number of anonymous pages irrelevant in that
calculation?

Note that this will change the meaning of the number of mapped pages reported
in /proc/vmstat /proc/meminfo and in the per node statistics.  This may affect
user space tools that monitor these counters!  NR_FILE_MAPPED works like
NR_FILE_DIRTY.  It is only valid for pagecache pages.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30 11:25:35 -07:00
..
power [PATCH] core: use list_move() 2006-06-26 09:58:17 -07:00
attribute_container.c [PATCH] Driver Core: remove unused exports 2006-06-21 12:40:48 -07:00
base.h [PATCH] Driver core: change make_class_name() to take kobjects 2006-06-21 12:40:49 -07:00
bus.c [PATCH] Driver core: add generic "subsystem" link to all devices 2006-06-21 12:40:49 -07:00
class.c [PATCH] Driver core: add generic "subsystem" link to all devices 2006-06-21 12:40:49 -07:00
core.c [PATCH] Driver core: fix locking issues with the devices that are attached to classes 2006-06-22 22:54:30 -07:00
cpu.c [PATCH] sched: mc/smt power savings sched policy 2006-06-27 17:32:45 -07:00
dd.c [PATCH] driver core: safely unbind drivers for devices not on a bus 2006-04-14 11:41:24 -07:00
dmapool.c [PATCH] add poison.h and patch primary users 2006-06-27 17:32:38 -07:00
driver.c [PATCH] Add bus_type probe, remove, shutdown methods. 2006-01-13 11:26:04 -08:00
firmware.c [PATCH] drivers/base - fix sparse warnings 2005-10-28 09:52:55 -07:00
firmware_class.c [PATCH] firmware_class: s/semaphores/mutexes 2006-06-21 12:40:49 -07:00
hypervisor.c [PATCH] Driver Core: Add /sys/hypervisor when needed 2006-06-21 12:40:48 -07:00
init.c [PATCH] Driver Core: Add /sys/hypervisor when needed 2006-06-21 12:40:48 -07:00
isa.c [PATCH] Driver model: add ISA bus 2006-06-21 12:40:49 -07:00
Kconfig [PATCH] Driver Core: Add /sys/hypervisor when needed 2006-06-21 12:40:48 -07:00
Makefile [PATCH] Driver model: add ISA bus 2006-06-21 12:40:49 -07:00
map.c [PATCH] kobj_map semaphore to mutex conversion 2006-03-20 13:42:58 -08:00
memory.c [PATCH] pgdat allocation for new node add (specify node id) 2006-06-27 17:32:35 -07:00
node.c [PATCH] zoned vm counters: split NR_ANON_PAGES off from NR_FILE_MAPPED 2006-06-30 11:25:35 -07:00
platform.c [PATCH] Driver Core: Fix platform_device_add to use device_add 2006-06-21 12:40:48 -07:00
sys.c [PATCH] Driver Core: Allow sysdev_class have attributes 2006-06-21 12:40:48 -07:00
topology.c [PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only 2006-06-27 17:32:41 -07:00
transport_class.c [SCSI] fix transport class corner case after rework 2005-08-28 11:14:06 -05:00