Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Thomas Gleixner cd689985cf futex: Add bitset conditional wait/wakeup functionality ... To allow the implementation of optimized rw-locks in user space, glibc needs a possibility to select waiters for wakeup depending on a bitset mask. This requires two new futex OPs: FUTEX_WAIT_BITS and FUTEX_WAKE_BITS These OPs are basically the same as FUTEX_WAIT and FUTEX_WAKE plus an additional argument - a bitset. Further the FUTEX_WAIT_BITS OP is expecting an absolute timeout value instead of the relative one, which is used for the FUTEX_WAIT OP. FUTEX_WAIT_BITS calls into the kernel with a bitset. The bitset is stored in the futex_q structure, which is used to enqueue the waiter into the hashed futex waitqueue. FUTEX_WAKE_BITS also calls into the kernel with a bitset. The wakeup function logically ANDs the bitset with the bitset stored in each waiters futex_q structure. If the result is zero (i.e. none of the set bits in the bitsets is matching), then the waiter is not woken up. If the result is not zero (i.e. one of the set bits in the bitsets is matching), then the waiter is woken. The bitset provided by the caller must be non zero. In case the provided bitset is zero the kernel returns EINVAL. Internaly the new OPs are only extensions to the existing FUTEX_WAIT and FUTEX_WAKE functions. The existing OPs hand a bitset with all bits set into the futex_wait() and futex_wake() functions. Signed-off-by: Thomas Gleixner <tgxl@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-02-01 17:45:14 +01:00
..
irq	genirq: stackdump after the "Trying to free already-free IRQ" message	2008-01-30 13:33:24 +01:00
power	Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc	2008-02-01 11:45:47 +11:00
time	tick-sched: add more debug information	2008-02-01 17:45:14 +01:00
.gitignore
acct.c	acct: real_parent ppid	2008-01-07 14:55:37 -08:00
audit.c	[AUDIT]: Increase skb->truesize in audit_expand	2008-01-31 19:27:08 -08:00
audit.h	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
audit_tree.c	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
auditfilter.c	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
auditsc.c	auditsc: fix kernel-doc param warnings	2007-10-22 19:40:02 -07:00
backtracetest.c	x86: add a simple backtrace test module	2008-01-30 13:33:08 +01:00
capability.c	Uninline find_pid etc set of functions	2007-10-19 11:53:41 -07:00
cgroup.c	Improve cgroup printks	2007-11-14 18:45:37 -08:00
cgroup_debug.c	Task Control Groups: simple task cgroup debug info subsystem	2007-10-19 11:53:36 -07:00
compat.c	Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt	2007-10-18 15:12:41 -07:00
configs.c
cpu.c	cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00
cpuset.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
delayacct.c
dma.c
exec_domain.c
exit.c	exit: Use task_is_*	2007-12-06 17:35:17 -05:00
extable.c	module: Don't report discarded init pages as kernel text.	2008-01-29 17:13:18 +11:00
fork.c	KVM: Disallow fork() and similar games when using a VM	2008-01-30 17:53:13 +02:00
futex.c	futex: Add bitset conditional wait/wakeup functionality	2008-02-01 17:45:14 +01:00
futex_compat.c	futex: Add bitset conditional wait/wakeup functionality	2008-02-01 17:45:14 +01:00
hrtimer.c	hrtimer: fix hrtimer_init_sleeper() users	2008-02-01 17:45:13 +01:00
itimer.c
kallsyms.c	module: make module_address_lookup safe	2008-01-29 17:13:23 +11:00
Kconfig.hz	sched: high-res preemption tick	2008-01-25 21:08:29 +01:00
Kconfig.instrumentation	Tiny clean-up of OPROFILE/KPROBES configuration	2007-12-06 09:41:12 -08:00
Kconfig.preempt	sched: remove the !PREEMPT_BKL code	2008-01-25 21:08:33 +01:00
kexec.c	vmcoreinfo: add the array length of "free_list" for filtering free pages	2008-01-08 16:10:36 -08:00
kfifo.c
kmod.c	Fix unbalanced helper_lock in kernel/kmod.c	2008-01-17 15:38:59 -08:00
kprobes.c	x86: kprobes: add kprobes smoke tests that run on boot	2008-01-30 13:32:53 +01:00
ksysfs.c	Kobject: convert remaining kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
kthread.c	sched: fix, always create kernel threads with normal priority	2008-01-25 21:08:33 +01:00
latency.c
latencytop.c	sched: latencytop support	2008-01-25 21:08:34 +01:00
lockdep.c	softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks	2008-01-25 21:08:02 +01:00
lockdep_internals.h
lockdep_proc.c
Makefile	x86: add a simple backtrace test module	2008-01-30 13:33:08 +01:00
marker.c	Linux Kernel Markers: fix marker mutex not taken upon module load	2007-11-14 18:45:40 -08:00
module.c	x86/non-x86: percpu, node ids, apic ids x86.git fixup	2008-01-30 13:33:32 +01:00
mutex-debug.c
mutex-debug.h
mutex.c	Add mutex_lock_killable	2007-12-06 17:37:59 -05:00
mutex.h
notifier.c	Add kernel/notifier.c	2007-10-19 11:53:34 -07:00
ns_cgroup.c	cgroups: implement namespace tracking subsystem	2007-10-19 11:53:37 -07:00
nsproxy.c	pid namespaces: allow cloning of new namespace	2007-10-19 11:53:39 -07:00
panic.c	debug: add the end-of-trace marker and the module list to	2008-01-30 13:32:50 +01:00
params.c	module: fix the module name length in param_sysfs_builtin	2008-01-29 17:13:24 +11:00
pid.c	pidns: Place under CONFIG_EXPERIMENTAL	2007-11-14 18:45:43 -08:00
posix-cpu-timers.c	sched: rt-watchdog: fix .rlim_max = RLIM_INFINITY	2008-01-25 21:08:32 +01:00
posix-timers.c	Isolate some explicit usage of task->tgid	2007-10-19 11:53:40 -07:00
printk.c	debug: turn ignore_loglevel into an early param	2008-01-31 22:45:23 +01:00
profile.c	debug: clean up kernel/profile.c	2008-01-25 21:08:33 +01:00
ptrace.c	Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc	2008-02-01 11:45:47 +11:00
rcuclassic.c	Preempt-RCU: implementation	2008-01-25 21:08:24 +01:00
rcupdate.c	Preempt-RCU: fix rcu_barrier for preemptive environment.	2008-01-25 21:08:24 +01:00
rcupreempt.c	Preempt-RCU: CPU Hotplug handling	2008-01-25 21:08:25 +01:00
rcupreempt_trace.c	Preempt-RCU: implementation	2008-01-25 21:08:24 +01:00
rcutorture.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
relay.c
resource.c	Add IORESOUCE_BUSY flag for System RAM	2007-11-14 18:45:39 -08:00
rtmutex-debug.c	Use helpers to obtain task pid in printks	2007-10-19 11:53:43 -07:00
rtmutex-debug.h
rtmutex-tester.c	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
rtmutex.c	Use helpers to obtain task pid in printks	2007-10-19 11:53:43 -07:00
rtmutex.h
rtmutex_common.h
rwsem.c	sched: mark rwsem functions as __sched for wchan/profiling	2007-12-18 15:21:13 +01:00
sched.c	Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc	2008-02-01 11:45:47 +11:00
sched_debug.c	sched: keep total / count stats in addition to the max for	2008-01-25 21:08:35 +01:00
sched_fair.c	sched: let +nice tasks have smaller impact	2008-01-31 22:45:22 +01:00
sched_idletask.c	sched: high-res preemption tick	2008-01-25 21:08:29 +01:00
sched_rt.c	sched: fix goto retry in pick_next_task_rt()	2008-01-25 21:08:34 +01:00
sched_stats.h	sched: clean up kernel/sched_stat.h	2007-11-28 15:52:56 +01:00
seccomp.c
signal.c	Ensure that we export __fatal_signal_pending()	2008-02-01 12:58:14 +11:00
softirq.c	time: track accurate idle time with tick_sched.idle_sleeptime	2008-01-30 13:30:04 +01:00
softlockup.c	softlockup: fix signedness	2008-01-25 21:08:34 +01:00
spinlock.c	spinlock: lockbreak cleanup	2008-01-30 13:31:20 +01:00
srcu.c
stacktrace.c
stop_machine.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
sys.c	x86: ignore the sys_getcpu() tcache parameter	2007-11-17 16:27:00 +01:00
sys_ni.c	[POWERPC] Provide a way to protect 4k subpages when using 64k pages	2008-01-24 10:06:01 +11:00
sysctl.c	x86: various changes and cleanups to in_p/out_p delay details	2008-01-30 13:30:05 +01:00
sysctl_check.c	sysctl: Infrastructure for per namespace sysctls	2008-01-28 14:55:17 -08:00
taskstats.c	kernel/taskstats.c: fix bogus nlmsg_free()	2007-11-14 18:45:44 -08:00
test_kprobes.c	x86: kprobes: add kprobes smoke tests that run on boot	2008-01-30 13:32:53 +01:00
time.c	timekeeping: update xtime_cache when time(zone) changes	2008-02-01 17:45:13 +01:00
timer.c	Merge branch 'task_killable' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc	2008-02-01 11:45:47 +11:00
tsacct.c
uid16.c
user.c	uids: merge multiple error paths in alloc_uid() into one	2008-01-25 21:08:26 +01:00
user_namespace.c
utsname.c
utsname_sysctl.c	Isolate the UTS namespace's domainname and hostname back	2007-11-29 09:24:53 -08:00
wait.c	wait: Use TASK_NORMAL	2007-12-06 17:34:36 -05:00
workqueue.c	cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00