Alan Stern eabc069401 [PATCH] Add SRCU-based notifier chains ... This patch (as751) adds a new type of notifier chain, based on the SRCU (Sleepable Read-Copy Update) primitives recently added to the kernel. An SRCU notifier chain is much like a blocking notifier chain, in that it must be called in process context and its callout routines are allowed to sleep. The difference is that the chain's links are protected by the SRCU mechanism rather than by an rw-semaphore, so calling the chain has extremely low overhead: no memory barriers and no cache-line bouncing. On the other hand, unregistering from the chain is expensive and the chain head requires special runtime initialization (plus cleanup if it is to be deallocated). SRCU notifiers are appropriate for notifiers that will be called very frequently and for which unregistration occurs very seldom. The proposed "task notifier" scheme qualifies, as may some of the network notifiers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Paul E. McKenney <paulmck@us.ibm.com> Acked-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-10-04 07:55:30 -07:00
..
irq	[PATCH] msi: simplify msi sanity checks by adding with generic irq code	2006-10-04 07:55:29 -07:00
power	[PATCH] namespaces: utsname: use init_utsname when appropriate	2006-10-02 07:57:21 -07:00
time	[PATCH] kernel/time/ntp.c: possible cleanups	2006-10-01 00:39:27 -07:00
.gitignore
acct.c	[PATCH] csa: convert CONFIG tag for extended accounting routines	2006-10-01 00:39:29 -07:00
audit.c
audit.h
auditfilter.c
auditsc.c
capability.c
compat.c	[PATCH] BLOCK: Revert patch to hack around undeclared sigset_t in linux/compat.h	2006-10-02 08:03:31 -07:00
configs.c
cpu.c
cpuset.c	[PATCH] r/o bind mount prepwork: inc_nlink() helper	2006-10-01 00:39:30 -07:00
delayacct.c
dma.c	[PATCH] kernel-doc for kernel/dma.c	2006-10-03 08:03:41 -07:00
exec_domain.c
exit.c	[PATCH] namespaces: exit_task_namespaces() invalidates nsproxy	2006-10-02 07:57:21 -07:00
extable.c
fork.c	[PATCH] IPC namespace - utils	2006-10-02 07:57:22 -07:00
futex_compat.c
futex.c	[PATCH] file: modify struct fown_struct to use a struct pid	2006-10-02 07:57:14 -07:00
hrtimer.c
itimer.c
kallsyms.c	[PATCH] Create kallsyms_lookup_size_offset()	2006-10-03 08:03:41 -07:00
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c	[PATCH] introduce kernel_execve	2006-10-02 07:57:23 -07:00
kprobes.c	[PATCH] kretprobe spinlock deadlock patch	2006-10-02 07:57:16 -07:00
ksysfs.c
kthread.c
latency.c
lockdep_internals.h
lockdep_proc.c
lockdep.c	[PATCH] namespaces: utsname: use init_utsname when appropriate	2006-10-02 07:57:21 -07:00
Makefile	[PATCH] srcu-3: RCU variant permitting read-side blocking	2006-10-04 07:55:30 -07:00
module.c	[PATCH] Create kallsyms_lookup_size_offset()	2006-10-03 08:03:41 -07:00
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
nsproxy.c	[PATCH] nsproxy cloning error path fix	2006-10-02 07:57:22 -07:00
panic.c
params.c
pid.c	[PATCH] introduce get_task_pid() to fix unsafe get_pid()	2006-10-02 07:57:25 -07:00
posix-cpu-timers.c
posix-timers.c	fix file specification in comments	2006-10-03 23:01:26 +02:00
printk.c
profile.c
ptrace.c
rcupdate.c
rcutorture.c	[PATCH] srcu-3: add SRCU operations to rcutorture	2006-10-04 07:55:30 -07:00
relay.c
resource.c	[PATCH] kernel-doc for kernel/resource.c	2006-10-03 08:03:41 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched.c	[PATCH] scheduler: NUMA aware placement of sched_group_allnodes	2006-10-03 08:04:07 -07:00
seccomp.c
signal.c	[PATCH] usb: fixup usb so it uses struct pid	2006-10-02 07:57:15 -07:00
softirq.c
softlockup.c
spinlock.c	[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks	2006-10-01 00:39:21 -07:00
srcu.c	[PATCH] srcu-3: RCU variant permitting read-side blocking	2006-10-04 07:55:30 -07:00
stacktrace.c
stop_machine.c
sys_ni.c
sys.c	[PATCH] Add SRCU-based notifier chains	2006-10-04 07:55:30 -07:00
sysctl.c	[PATCH] replace cad_pid by a struct pid	2006-10-02 07:57:25 -07:00
taskstats.c	[PATCH] csa: Extended system accounting over taskstats	2006-10-01 00:39:29 -07:00
time.c	[PATCH] NTP: Move all the NTP related code to ntp.c	2006-10-01 00:39:26 -07:00
timer.c	[PATCH] kill wall_jiffies	2006-10-01 00:39:27 -07:00
tsacct.c	[PATCH] csa accounting taskstats update	2006-10-01 00:39:29 -07:00
uid16.c
unwind.c
user.c
utsname.c	[PATCH] namespaces: utsname: implement CLONE_NEWUTS flag	2006-10-02 07:57:22 -07:00
wait.c
workqueue.c	remove duplicate "until" from kernel/workqueue.c	2006-10-03 23:07:31 +02:00