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Oleg Nesterov bb7efee2ca signal: cleanup sys_rt_sigprocmask() 
sys_rt_sigprocmask() looks unnecessarily complicated, simplify it.
We can just read current->blocked lockless unconditionally before
anything else and then copy-to-user it if needed.  At worst we
copy 4 words on mips.

We could copy-to-user the old mask first and simplify the code even
more, but the patch tries to keep the current behaviour: we change
current->block even if copy_to_user(oset) fails.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Matt Fleming <matt.fleming@linux.intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
2011-04-28 13:01:38 +02:00
..
debug
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
2011-03-25 21:04:56 -07:00
gcov
Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
2011-03-20 18:14:55 -07:00
irq
genirq: Remove the now obsolete config options and select statements
2011-03-30 14:13:23 +02:00
power
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
time
ntp: fix non privileged system time shifting
2011-04-04 08:31:23 -07:00
trace
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-25 17:53:09 -07:00
.gitignore
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acct.c
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async.c
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audit_tree.c
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audit_watch.c
kill path_lookup()
2011-03-14 09:15:23 -04:00
audit.c
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audit.h
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auditfilter.c
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auditsc.c
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backtracetest.c
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bounds.c
memcg: remove direct page_cgroup-to-page pointer
2011-03-23 19:46:28 -07:00
capability.c
userns: make has_capability* into real functions
2011-03-23 19:47:06 -07:00
cgroup_freezer.c
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cgroup.c
cgroups: if you list_empty() a head then don't list_del() it
2011-03-22 17:43:58 -07:00
compat.c
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configs.c
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cpu.c
kernel/cpu.c: fix many errors related to style.
2011-03-22 17:44:11 -07:00
cpuset.c
cpuset: hold callback_mutex in cpuset_post_clone()
2011-03-23 19:46:35 -07:00
crash_dump.c
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
cred.c
userns: security: make capabilities relative to the user namespace
2011-03-23 19:47:02 -07:00
delayacct.c
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dma.c
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elfcore.c
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exec_domain.c
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exit.c
Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into ptrace
2011-04-07 20:44:11 +02:00
extable.c
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fork.c
Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block
2011-03-24 10:16:26 -07:00
freezer.c
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futex_compat.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
futex.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-25 17:52:22 -07:00
groups.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
hrtimer.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-15 18:53:35 -07:00
hung_task.c
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hw_breakpoint.c
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irq_work.c
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itimer.c
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jump_label.c
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kallsyms.c
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-25 17:52:22 -07:00
Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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kexec.c
kdump: Allow shrinking of kdump region to be overridden
2011-04-01 16:14:30 +11:00
kfifo.c
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kmod.c
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kprobes.c
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ksysfs.c
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kthread.c
kthread: NUMA aware kthread_create_on_node()
2011-03-22 17:44:01 -07:00
latencytop.c
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lockdep_internals.h
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lockdep_proc.c
lockdep: Remove unused 'factor' variable from lockdep_stats_show()
2011-03-23 13:54:47 +01:00
lockdep_states.h
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lockdep.c
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Makefile
crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn
2011-03-23 19:47:19 -07:00
module.c
printk: use %pK for /proc/kallsyms and /proc/modules
2011-03-22 17:44:12 -07:00
mutex-debug.c
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mutex-debug.h
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mutex.c
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mutex.h
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notifier.c
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ns_cgroup.c
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nsproxy.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
padata.c
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panic.c
move x86 specific oops=panic to generic code
2011-03-22 17:44:11 -07:00
params.c
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perf_event.c
perf: Fix task_struct reference leak
2011-03-31 13:02:56 +02:00
pid_namespace.c
pidns: call pid_ns_prepare_proc() from create_pid_namespace()
2011-03-23 19:46:58 -07:00
pid.c
export pid symbols needed for kvm_vcpu_on_spin
2011-03-17 13:08:28 -03:00
pm_qos_params.c
PM QoS: Make pm_qos settings readable
2011-03-15 00:43:18 +01:00
posix-cpu-timers.c
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posix-timers.c
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printk.c
printk: allow setting DEFAULT_MESSAGE_LEVEL via Kconfig
2011-03-22 17:44:13 -07:00
profile.c
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ptrace.c
Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into ptrace
2011-04-07 20:44:11 +02:00
range.c
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rcupdate.c
rcu: add comment saying why DEBUG_OBJECTS_RCU_HEAD depends on PREEMPT.
2011-03-04 08:05:41 -08:00
rcutiny_plugin.h
rcu: call __rcu_read_unlock() in exit_rcu for tiny RCU
2011-03-04 08:05:08 -08:00
rcutiny.c
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rcutorture.c
rcutorture: Get rid of duplicate sched.h include
2011-03-04 08:05:17 -08:00
rcutree_plugin.h
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rcutree_trace.c
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rcutree.c
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rcutree.h
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relay.c
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res_counter.c
memcg: res_counter_read_u64(): fix potential races on 32-bit machines
2011-03-23 19:46:22 -07:00
resource.c
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rtmutex_common.h
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rtmutex-debug.c
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rtmutex-debug.h
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rtmutex-tester.c
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rtmutex.c
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rtmutex.h
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rwsem.c
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sched_autogroup.c
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sched_autogroup.h
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sched_clock.c
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sched_cpupri.c
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sched_cpupri.h
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sched_debug.c
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sched_fair.c
sched: Fix rebalance interval calculation
2011-03-31 13:00:37 +02:00
sched_features.h
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sched_idletask.c
sched, doc: Update sched-design-CFS.txt
2011-03-23 14:09:41 +01:00
sched_rt.c
Merge branch 'sched/urgent' into sched/core
2011-03-04 11:12:26 +01:00
sched_stats.h
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sched_stoptask.c
sched, doc: Update sched-design-CFS.txt
2011-03-23 14:09:41 +01:00
sched.c
sched: Leave sched_setscheduler() earlier if possible, do not disturb SCHED_FIFO tasks
2011-03-31 13:00:34 +02:00
seccomp.c
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semaphore.c
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signal.c
signal: cleanup sys_rt_sigprocmask()
2011-04-28 13:01:38 +02:00
smp.c
smp: move smp setup functions to kernel/smp.c
2011-03-22 17:44:11 -07:00
softirq.c
kthread: use kthread_create_on_node()
2011-03-22 17:44:01 -07:00
spinlock.c
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srcu.c
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stacktrace.c
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stop_machine.c
kthread: use kthread_create_on_node()
2011-03-22 17:44:01 -07:00
sys_ni.c
vfs: Add open by file handle support
2011-03-15 02:21:44 -04:00
sys.c
userns: user namespaces: convert all capable checks in kernel/sys.c
2011-03-23 19:47:06 -07:00
sysctl_binary.c
open-style analog of vfs_path_lookup()
2011-03-14 09:15:28 -04:00
sysctl_check.c
sysctl_check: drop dead code
2011-03-23 19:46:51 -07:00
sysctl.c
sysctl: restrict write access to dmesg_restrict
2011-03-23 19:46:54 -07:00
taskstats.c
taskstats: use appropriate printk priority level
2011-03-23 19:47:14 -07:00
test_kprobes.c
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time.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-15 18:53:35 -07:00
timeconst.pl
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timer.c
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2011-03-15 18:53:35 -07:00
tracepoint.c
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tsacct.c
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uid16.c
userns: user namespaces: convert several capable() calls
2011-03-23 19:47:08 -07:00
up.c
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user_namespace.c
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user-return-notifier.c
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user.c
userns: add a user_namespace as creator/owner of uts_namespace
2011-03-23 19:46:59 -07:00
utsname_sysctl.c
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utsname.c
userns: allow sethostname in a container
2011-03-23 19:47:03 -07:00
wait.c
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watchdog.c
kernel/watchdog.c: always return NOTIFY_OK during cpu up/down events
2011-03-22 17:44:12 -07:00
workqueue_sched.h
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workqueue.c
kthread: use kthread_create_on_node()
2011-03-22 17:44:01 -07:00