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author | Thomas Gleixner <tglx@linutronix.de> | 2009-07-17 14:15:47 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2009-07-18 14:19:53 +0200 |
commit | 6301cb95c119ebf324bb96ee226fa9ddffad80a7 (patch) | |
tree | 7201f406d135212bae3775dc7d71cbdd6990e5de /firmware/ess | |
parent | a468d389349a7560249b355cdb6d2097ea1616c9 (diff) | |
download | op-kernel-dev-6301cb95c119ebf324bb96ee226fa9ddffad80a7.zip op-kernel-dev-6301cb95c119ebf324bb96ee226fa9ddffad80a7.tar.gz |
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>
Diffstat (limited to 'firmware/ess')
0 files changed, 0 insertions, 0 deletions