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authorShaibal Dutta <shaibal.dutta@broadcom.com>2014-01-31 11:53:06 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-02-17 15:02:14 -0800
commitae1670339c95c3ff96ab10582506cf827c5fecc8 (patch)
tree65f8d452bd742cf8942abdfb1a427ab20310dd81 /fs/file.c
parent52e2bb958ac4f9b3c4bdd78606d279852fd72922 (diff)
rcu: Move SRCU grace period work to power efficient workqueue
For better use of CPU idle time, allow the scheduler to select the CPU on which the SRCU grace period work would be scheduled. This improves idle residency time and conserves power. This functionality is enabled when CONFIG_WQ_POWER_EFFICIENT is selected. Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Shaibal Dutta <shaibal.dutta@broadcom.com> [zoran.markovic@linaro.org: Rebased to latest kernel version. Added commit message. Fixed code alignment.] Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
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