Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Paul Jackson 6b9c2603ce [PATCH] cpuset: use rcu directly optimization ... Optimize the cpuset impact on page allocation, the most performance critical cpuset hook in the kernel. On each page allocation, the cpuset hook needs to check for a possible change in the current tasks cpuset. It can now handle the common case, of no change, without taking any spinlock or semaphore, thanks to RCU. Convert a spinlock on the current task to an rcu_read_lock(), saving approximately a memory barrier and an atomic op, depending on architecture. This is done by adding rcu_assign_pointer() and synchronize_rcu() calls to the write side of the task->cpuset pointer, in cpuset.c:attach_task(), to delay freeing up a detached cpuset until after any critical sections referencing that pointer. Thanks to Andi Kleen, Nick Piggin and Eric Dumazet for ideas. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-01-08 20:13:45 -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: use rcu directly optimization	2006-01-08 20:13:45 -08:00
crash_dump.c	[PATCH] kernel/crash_dump.c: add kerneldoc	2005-07-27 16:26:06 -07:00
dma.c
exec_domain.c
exit.c	[PATCH] RCU signal handling	2006-01-08 20:13:40 -08:00
extable.c
fork.c	[PATCH] cpuset: fork hook fix	2006-01-08 20:13:43 -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	[PATCH] RCU signal handling	2006-01-08 20:13:40 -08:00
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] RCU signal handling	2006-01-08 20:13:40 -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] RCU signal handling	2006-01-08 20:13:40 -08:00
seccomp.c
signal.c	[PATCH] Simpler signal-exit concurrency handling	2006-01-08 20:13:40 -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.c	[PATCH] kprobes: no probes on critical path	2005-12-12 08:57:45 -08:00
sys_ni.c	[PATCH] Swap Migration V5: sys_migrate_pages interface	2006-01-08 20:12:42 -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
user.c	[PATCH] inotify	2005-07-12 20:38:38 -07:00
wait.c
workqueue.c	[PATCH] add schedule_on_each_cpu()	2006-01-08 20:12:40 -08:00