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Christoph Lameter 15316ba81a [PATCH] add schedule_on_each_cpu() ...

swap migration's isolate_lru_page() currently uses an IPI to notify other
processors that the lru caches need to be drained if the page cannot be
found on the LRU.  The IPI interrupt may interrupt a processor that is just
processing lru requests and cause a race condition.

This patch introduces a new function run_on_each_cpu() that uses the
keventd() to run the LRU draining on each processor.  Processors disable
preemption when dealing the LRU caches (these are per processor) and thus
executing LRU draining from another process is safe.

Thanks to Lee Schermerhorn <lee.schermerhorn@hp.com> for finding this race
condition.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-01-08 20:12:40 -08:00

..

irq

[PATCH] Alpha: convert to generic irq framework (generic part)

2006-01-06 08:33:40 -08:00

power

[PATCH] swsusp: save image header first

2006-01-06 08:33:43 -08:00

.gitignore

gitignore: ignore more generated files

2006-01-03 11:35:26 +01:00

acct.c

[PATCH] s390: cputime_t fixes

2006-01-06 08:33:49 -08:00

audit.c

[PATCH] Add try_to_freeze to kauditd

2005-12-12 08:57:43 -08:00

auditsc.c

[PATCH] gfp_t: kernel/*

2005-10-28 08:16:49 -07:00

capability.c

[PATCH] kernel/capability.c: add kerneldoc

2005-07-27 16:26:06 -07:00

compat.c

[PATCH] kernel: fix-up schedule_timeout() usage

2005-09-10 10:06:37 -07:00

configs.c

update the email address of Randy Dunlap

2006-01-03 13:37:51 +01:00

cpu.c

[PATCH] clean up lock_cpu_hotplug() in cpufreq

2005-11-28 14:42:23 -08:00

cpuset.c

[PATCH] cpuset: fix return without releasing semaphore

2005-11-13 18:14:11 -08:00

crash_dump.c

[PATCH] kernel/crash_dump.c: add kerneldoc

2005-07-27 16:26:06 -07:00

dma.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

exec_domain.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

exit.c

[PATCH] m68k: introduce task_thread_info

2005-11-13 18:14:13 -08:00

extable.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

fork.c

[PATCH] cpuset fork locking fix

2005-11-28 14:42:24 -08:00

futex.c

[PATCH] FRV: Make futex code compilable on nommu [try #2]

2006-01-06 08:33:33 -08:00

intermodule.c

[PATCH] introduce and use kzalloc

2005-09-07 16:57:45 -07:00

itimer.c

[PATCH] itimer fixes

2005-07-27 16:25:51 -07:00

kallsyms.c

[PATCH] fix missing includes

2005-10-30 17:37:32 -08:00

Kconfig.hz

[PATCH] i386: Selectable Frequency of the Timer Interrupt

2005-06-23 09:45:10 -07:00

Kconfig.preempt

[PATCH] sched: voluntary kernel preemption

2005-06-25 16:24:45 -07:00

kexec.c

[PATCH] mm: split page table lock

2005-10-29 21:40:42 -07:00

kfifo.c

[PATCH] gfp flags annotations - part 1

2005-10-08 15:00:57 -07:00

kmod.c

[PATCH] Keys: Get rid of warning in kmod.c if keys disabled

2005-10-30 17:37:23 -08:00

kprobes.c

[PATCH] kprobes: increment kprobe missed count for multiprobes

2005-12-12 08:57:45 -08:00

ksysfs.c

[PATCH] kobject_uevent CONFIG_NET=n fix

2006-01-04 16:18:08 -08:00

kthread.c

[PATCH] Add kthread_stop_sem()

2005-10-30 17:37:17 -08:00

Makefile

[PATCH] RCU torture-testing kernel module

2005-10-30 17:37:27 -08:00

module.c

[PATCH] kernel/module.c: removed dead code

2006-01-06 08:33:59 -08:00

panic.c

[PATCH] s390: cleanup Kconfig

2006-01-06 08:33:53 -08:00

params.c

[PATCH] kernel/params.c: fix sysfs access with CONFIG_MODULES=n

2005-12-20 10:31:33 -08:00

pid.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

posix-cpu-timers.c

[PATCH] Fix posix-cpu-timers sched_time accumulation

2006-01-06 20:23:04 -08:00

posix-timers.c

[PATCH] timespec: normalize off by one errors

2005-11-13 18:14:17 -08:00

printk.c

[PATCH] Fix crash in unregister_console()

2005-11-23 16:08:39 -08:00

profile.c

[PATCH] mostly_read data section

2005-07-07 18:23:46 -07:00

ptrace.c

[PATCH] Fix crash when ptrace poking hugepage areas

2005-11-29 19:47:03 -08:00

rcupdate.c

[PATCH] Fix RCU race in access of nohz_cpu_mask

2005-12-12 08:57:42 -08:00

rcutorture.c

[PATCH] Fix bug in RCU torture test

2005-12-12 08:57:42 -08:00

resource.c

[PATCH] introduce and use kzalloc

2005-09-07 16:57:45 -07:00

sched.c

[PATCH] m68k: introduce setup_thread_stack() and end_of_stack()

2005-11-13 18:14:13 -08:00

seccomp.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

signal.c

[PATCH] signal handling: revert sigkill priority fix

2005-11-13 18:14:15 -08:00

softirq.c

[PATCH] cpu hoptlug: avoid usage of smp_processor_id() in preemptible code

2005-11-07 07:53:29 -08:00

softlockup.c

[PATCH] quieten softlockup at boot

2005-11-09 07:55:50 -08:00

spinlock.c

[PATCH] spinlock consolidation

2005-09-10 10:06:21 -07:00

stop_machine.c

[PATCH] stop_machine() vs. synchronous IPI send deadlock

2005-11-13 18:14:16 -08:00

sys_ni.c

[PATCH] remove sys_set_zone_reclaim()

2005-08-01 10:03:56 -07:00

sys.c

[PATCH] kprobes: no probes on critical path

2005-12-12 08:57:45 -08:00

sysctl.c

[PATCH] Make high and batch sizes of per_cpu_pagelists configurable

2006-01-08 20:12:40 -08:00

time.c

[PATCH] Add getnstimestamp function

2005-12-12 08:57:42 -08:00

timer.c

[PATCH] jiffies_64 cleanup

2005-10-30 17:37:25 -08:00

uid16.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

user.c

[PATCH] inotify

2005-07-12 20:38:38 -07:00

wait.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

workqueue.c

[PATCH] add schedule_on_each_cpu()

2006-01-08 20:12:40 -08:00