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Paul Jackson 505970b96e [PATCH] cpuset oom lock fix ... The problem, reported in: http://bugzilla.kernel.org/show_bug.cgi?id=5859 and by various other email messages and lkml posts is that the cpuset hook in the oom (out of memory) code can try to take a cpuset semaphore while holding the tasklist_lock (a spinlock). One must not sleep while holding a spinlock. The fix seems easy enough - move the cpuset semaphore region outside the tasklist_lock region. This required a few lines of mechanism to implement. The oom code where the locking needs to be changed does not have access to the cpuset locks, which are internal to kernel/cpuset.c only. So I provided a couple more cpuset interface routines, available to the rest of the kernel, which simple take and drop the lock needed here (cpusets callback_sem). Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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irq	…
power	…
.gitignore	…
Kconfig.hz	…
Kconfig.preempt	…
Makefile	[PATCH] hrtimer: hrtimer core code	19 years ago
acct.c	[PATCH] move capable() to capability.h	19 years ago
audit.c	…
auditsc.c	…
capability.c	[PATCH] move capable() to capability.h	19 years ago
compat.c	…
configs.c	…
cpu.c	…
cpuset.c	[PATCH] cpuset oom lock fix	19 years ago
dma.c	Linux-2.6.12-rc2	20 years ago
exec_domain.c	…
exit.c	[PATCH] Unlinline a bunch of other functions	19 years ago
extable.c	Linux-2.6.12-rc2	20 years ago
fork.c	[PATCH] x86_64: Inclusion of ScaleMP vSMP architecture patches - vsmp_align	19 years ago
futex.c	[PATCH] FRV: Make futex code compilable on nommu [try #2]	19 years ago
hrtimer.c	[hrtimer] Enforce resolution as lower limit of intervals	19 years ago
intermodule.c	…
itimer.c	…
kallsyms.c	…
kexec.c	[PATCH] move capable() to capability.h	19 years ago
kfifo.c	…
kmod.c	…
kprobes.c	…
ksysfs.c	[PATCH] kdump: export per cpu crash notes pointer through sysfs	19 years ago
kthread.c	…
module.c	[PATCH] move capable() to capability.h	19 years ago
mutex-debug.c	…
mutex-debug.h	…
mutex.c	…
mutex.h	…
panic.c	…
params.c	…
pid.c	[PATCH] RCU signal handling	19 years ago
posix-cpu-timers.c	…
posix-timers.c	[PATCH] Unlinline a bunch of other functions	19 years ago
printk.c	…
profile.c	…
ptrace.c	[PATCH] move capable() to capability.h	19 years ago
rcupdate.c	…
rcutorture.c	…
resource.c	…
sched.c	[PATCH] Unlinline a bunch of other functions	19 years ago
seccomp.c	…
signal.c	[PATCH] Unlinline a bunch of other functions	19 years ago
softirq.c	…
softlockup.c	…
spinlock.c	…
stop_machine.c	…
sys.c	[PATCH] move capable() to capability.h	19 years ago
sys_ni.c	…
sysctl.c	[PATCH] s390: spinlock fixes	19 years ago
time.c	[PATCH] move capable() to capability.h	19 years ago
timer.c	…
uid16.c	[PATCH] move capable() to capability.h	19 years ago
user.c	[PATCH] inotify	20 years ago
wait.c	…
workqueue.c	[PATCH] Unlinline a bunch of other functions	19 years ago