linux/include
Thomas Gleixner 6301cb95c1 sched: fix nr_uninterruptible accounting of frozen tasks really
commit e3c8ca8336 (sched: do not count frozen tasks toward load) broke
the nr_uninterruptible accounting on freeze/thaw. On freeze the task
is excluded from accounting with a check for (task->flags &
PF_FROZEN), but that flag is cleared before the task is thawed. So
while we prevent that the task with state TASK_UNINTERRUPTIBLE
is accounted to nr_uninterruptible on freeze we decrement
nr_uninterruptible on thaw.

Use a separate flag which is handled by the freezing task itself. Set
it before calling the scheduler with TASK_UNINTERRUPTIBLE state and
clear it after we return from frozen state.

Cc: <stable@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-07-18 14:19:53 +02:00
..
acpi Merge branch 'bjorn-notify' into release 2009-06-24 01:22:20 -04:00
asm-generic Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes 2009-07-04 09:46:01 -07:00
crypto
drm drm/radeon: add some missing pci ids 2009-07-15 15:48:36 +10:00
keys
linux sched: fix nr_uninterruptible accounting of frozen tasks really 2009-07-18 14:19:53 +02:00
math-emu
media V4L/DVB (12135): Add a driver for mt9v011 sensor 2009-07-05 14:30:02 -03:00
mtd Kill jffs2-user.h 2009-06-05 17:31:38 +01:00
net memory barrier: adding smp_mb__after_lock 2009-07-09 17:06:58 -07:00
pcmcia
rdma
rxrpc
scsi sd, sr: fix Driver 'sd' needs updating message 2009-06-21 12:01:27 -05:00
sound Merge branch 'topic/pcm-jiffies-check' into for-linus 2009-06-10 07:26:41 +02:00
trace Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-07-14 18:34:32 -07:00
video fbdev: s1d13xxxfb: add accelerated bitblt functions 2009-06-16 19:48:00 -07:00
xen
Kbuild [SCSI] FC Pass Thru support 2009-06-12 14:20:05 -05:00