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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-12-20 17:28:26 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-05-14 18:38:37 (GMT) |
| commit | a473767a5b67bc7b0196a61e9e26aec5298c1928 (patch) | |
| tree | eca0cea7fb59d22d76229c47ae5ebeaa10f66d86 /drivers/char/agp/amd64-agp.c | |
| parent | ecb0069c91d00cf11a9b60eab0c81b24604ba4f3 (diff) | |
| download | linux-fsl-qoriq-a473767a5b67bc7b0196a61e9e26aec5298c1928.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 'drivers/char/agp/amd64-agp.c')
0 files changed, 0 insertions, 0 deletions