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| author | Byungchul Park | 2015-08-10 11:02:55 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2015-08-12 12:06:09 +0200 |
| commit | 7855a35ac07a350e2cd26f09568a6d8e372be358 (patch) | |
| tree | abb27dda433ad9c731f82ac5c4901c0b44457548 /kernel/kthread.c | |
| parent | sched/numa: Fix NUMA_DIRECT topology identification (diff) | |
| download | kernel-qcow2-linux-7855a35ac07a350e2cd26f09568a6d8e372be358.tar.gz kernel-qcow2-linux-7855a35ac07a350e2cd26f09568a6d8e372be358.tar.xz kernel-qcow2-linux-7855a35ac07a350e2cd26f09568a6d8e372be358.zip | |
sched: Ensure a task has a non-normalized vruntime when returning back to CFS
Current code ensures that a task has a normalized vruntime when switching away
from the fair class, but it does not ensure the task has a non-normalized
vruntime when switching back to the fair class.
This is an example breaking this consistency:
1. a task is in fair class and !queued
2. changes its class to RT class (still !queued)
3. changes its class to fair class again (still !queued)
Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1439197375-27927-1-git-send-email-byungchul.park@lge.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/kthread.c')
0 files changed, 0 insertions, 0 deletions