Searched hist:"6301 cb95c119ebf324bb96ee226fa9ddffad80a7" (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/kernel/ |
| H A D | freezer.c | diff 6301cb95c119ebf324bb96ee226fa9ddffad80a7 Fri Jul 17 07:15:47 CDT 2009 Thomas Gleixner <tglx@linutronix.de> 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>
|
| /openbmc/linux/include/linux/ |
| H A D | sched.h | diff 6301cb95c119ebf324bb96ee226fa9ddffad80a7 Fri Jul 17 07:15:47 CDT 2009 Thomas Gleixner <tglx@linutronix.de> 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>
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