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Steve Muckle 90b392ea77 init: apply SCHED_FIFO to kthreadd ...

Hotplug (cpu_up) latency currently suffers because the system
must wait for kthreadd to spawn certain kthreads (such as the
migration and workqueue kthreads) and for them to run for
the first time. Setting SCHED_FIFO will cause kthreadd to run
immediately. The newly created kthreads will inherit the scheduler
policy and run immediately also.

The scheduling policy of newly created kthreads is already set
back to SCHED_NORMAL in kthread_create_on_node, so nothing needs
to be done to restore normal scheduling behavior for the kthreads
once spawned.

Change-Id: I236ceb29845cf58ea1ea886fc3210ccaab2dd792
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
(cherry picked from commit 82440737eef236077e5781061b4c8de2c0b013fb)

2013-02-08 15:14:32 -08:00

..

calibrate.c

init: check printed flag to skip printing message

2012-03-23 16:58:38 -07:00

do_mounts_initrd.c

get rid of pointless includes of ext2_fs.h

2012-03-31 16:03:15 -04:00

do_mounts_md.c

init: mark __user address space on string literals

2010-10-26 16:52:15 -07:00

do_mounts_rd.c

new helper: ext2_image_size()

2012-03-31 16:03:16 -04:00

do_mounts.c

init: don't try mounting device as nfs root unless type fully matches

2012-05-05 10:04:40 -07:00

do_mounts.h

md: move lots of #include lines out of .h files and into .c

2009-03-31 14:33:13 +11:00

initramfs.c

init/initramfs.c: should use umode_t

2012-01-03 22:55:14 -05:00

Kconfig

documentation: remove references to cpu_*_map.

2012-03-29 15:38:31 +10:30

main.c

init: apply SCHED_FIFO to kthreadd

2013-02-08 15:14:32 -08:00

Makefile

kbuild: move compile.h to include/generated

2009-12-12 13:08:14 +01:00

noinitramfs.c

init: mark __user address space on string literals

2010-10-26 16:52:15 -07:00

version.c

userns: add a user_namespace as creator/owner of uts_namespace

2011-03-23 19:46:59 -07:00