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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-12-20 17:28:26 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-04-10 00:19:45 (GMT) |
| commit | e960551addbad2c36f32ed55d84566250fe46b6e (patch) | |
| tree | fa0cd2f0580a78541e6ad21f9a2473313dae3998 /fs | |
| parent | e72903255fc2c93f1b60ecb9e019e768ef9893a1 (diff) | |
| download | linux-fsl-qoriq-e960551addbad2c36f32ed55d84566250fe46b6e.tar.xz | |
block: Use cpu_chill() for retry loops
Retry loops on RT might loop forever when the modifying side was
preempted. Steven also observed a live lock when there was a
concurrent priority boosting going on.
Use cpu_chill() instead of cpu_relax() to let the system
make progress.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable-rt@vger.kernel.org
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions