linux/include
Johannes Weiner 451ea25da7 mm: perform non-atomic test-clear of PG_mlocked on free
By the time PG_mlocked is cleared in the page freeing path, nobody else is
looking at our page->flags anymore.

It is thus safe to make the test-and-clear non-atomic and thereby removing
an unnecessary and expensive operation from a hotpath.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 07:17:30 -07:00
..
acpi includecheck fix: include/acpi, acpi_bus.h 2009-09-20 16:02:39 +05:30
asm-generic perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2009-09-11 09:38:37 -07:00
drm Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-09-21 08:10:09 -07:00
keys RxRPC: Use uX/sX rather than uintX_t/intX_t types 2009-09-16 00:01:13 -07:00
linux mm: perform non-atomic test-clear of PG_mlocked on free 2009-09-22 07:17:30 -07:00
math-emu
media V4L/DVB (13019): video: initial support for ADV7180 2009-09-19 00:53:39 -03:00
mtd
net pkt_sched: Fix tx queue selection in tc_modify_qdisc 2009-09-15 02:53:07 -07:00
pcmcia pcmcia: Use phys_addr_t for physical addresses 2009-09-15 10:17:15 -07:00
rdma
rxrpc
scsi [SCSI] libiscsi, bnx2i: make bound ep check common 2009-09-12 09:35:33 -05:00
sound Merge branch 'topic/ymfpci' into for-linus 2009-09-10 15:33:09 +02:00
trace Merge branch 'perfcounters-rename-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-21 09:15:07 -07:00
video
xen
Kbuild