Nick Piggin 5bfb5d690f [PATCH] sched: disable preempt in idle tasks ... Run idle threads with preempt disabled. Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()). How did it ever work before? Might fix the CPU hotplugging hang which Nigel Cunningham noted. We think the bug hits if the idle thread is preempted after checking need_resched() and before going to sleep, then the CPU offlined. After calling stop_machine_run, the CPU eventually returns from preemption and into the idle thread and goes to sleep. The CPU will continue executing previous idle and have no chance to call play_dead. By disabling preemption until we are ready to explicitly schedule, this bug is fixed and the idle threads generally become more robust. From: alexs <ashepard@u.washington.edu> PPC build fix From: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> MIPS build fix Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-11-09 07:56:33 -08:00
..
calibrate.c
do_mounts_devfs.c
do_mounts_initrd.c
do_mounts_md.c
do_mounts_rd.c
do_mounts.c	[PATCH] remove driverfs references from init/do_mounts.c	2005-09-02 00:57:31 -07:00
do_mounts.h	[PATCH] name_to_dev_t warning fix	2005-07-12 16:00:58 -07:00
initramfs.c	[PATCH] free initrd mem adjustment	2005-09-13 08:22:28 -07:00
Kconfig	[BLOCK] Move all core block layer code to new block/ directory	2005-11-04 08:43:35 +01:00
main.c	[PATCH] sched: disable preempt in idle tasks	2005-11-09 07:56:33 -08:00
Makefile	kbuild: "PREEMPT" in UTS_VERSION	2005-07-14 20:18:07 +00:00
version.c