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Christophe JAILLET 8c703d6604 kernel/umh.c: optimize 'proc_cap_handler()' 
If 'write' is 0, we can avoid a call to spin_lock/spin_unlock.

Link: http://lkml.kernel.org/r/20171020193331.7233-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-11-17 16:10:01 -08:00
..
bpf
Merge branch 'akpm' (patches from Andrew)
2017-11-15 19:42:40 -08:00
cgroup
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2017-11-15 14:29:44 -08:00
configs
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debug
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events
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2017-11-15 11:56:19 -08:00
gcov
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irq
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2017-11-15 10:56:56 -08:00
livepatch
Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
2017-11-15 10:21:58 -08:00
locking
kmemcheck: remove annotations
2017-11-15 18:21:04 -08:00
power
mm: remove __GFP_COLD
2017-11-15 18:21:06 -08:00
printk
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rcu
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
sched
Merge tag 'afs-next-20171113' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
2017-11-16 11:41:22 -08:00
time
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:56:58 -08:00
trace
Merge branch 'akpm' (patches from Andrew)
2017-11-15 19:42:40 -08:00
.gitignore
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acct.c
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async.c
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audit_fsnotify.c
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audit_tree.c
Merge branch 'fsnotify' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2017-11-14 14:08:20 -08:00
audit_watch.c
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audit.c
Audit: remove unused audit_log_secctx function
2017-11-10 16:08:47 -05:00
audit.h
Merge tag 'audit-pr-20171113' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2017-11-15 13:28:48 -08:00
auditfilter.c
audit: filter PATH records keyed on filesystem magic
2017-11-10 16:08:56 -05:00
auditsc.c
Merge tag 'audit-pr-20171113' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2017-11-15 13:28:48 -08:00
backtracetest.c
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bounds.c
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capability.c
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compat.c
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configs.c
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context_tracking.c
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cpu_pm.c
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cpu.c
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crash_core.c
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crash_dump.c
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cred.c
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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
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extable.c
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fork.c
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
freezer.c
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futex_compat.c
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futex.c
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groups.c
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hung_task.c
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irq_work.c
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2017-11-13 17:33:11 -08:00
jump_label.c
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kallsyms.c
/proc/module: use the same logic as /proc/kallsyms for address exposure
2017-11-12 19:01:23 -08:00
kcmp.c
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Kconfig.freezer
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Kconfig.hz
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Kconfig.locks
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Kconfig.preempt
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kcov.c
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kexec_core.c
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kexec_file.c
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kexec_internal.h
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kexec.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
Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block
2017-11-14 15:32:19 -08:00
latencytop.c
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Makefile
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memremap.c
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module_signing.c
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module-internal.h
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module.c
Merge tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
2017-11-15 13:46:33 -08:00
notifier.c
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nsproxy.c
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padata.c
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panic.c
bug: fix "cut here" location for __WARN_TAINT architectures
2017-11-17 16:10:01 -08:00
params.c
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pid_namespace.c
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pid.c
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profile.c
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ptrace.c
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range.c
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reboot.c
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relay.c
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resource.c
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seccomp.c
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signal.c
kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK
2017-11-15 18:21:04 -08:00
smp.c
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smpboot.c
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smpboot.h
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softirq.c
kmemcheck: rip it out
2017-11-15 18:21:05 -08:00
stacktrace.c
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stop_machine.c
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sys_ni.c
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sys.c
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2017-11-15 10:56:56 -08:00
sysctl_binary.c
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sysctl.c
mm, sysctl: make NUMA stats configurable
2017-11-15 18:21:07 -08:00
task_work.c
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taskstats.c
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test_kprobes.c
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torture.c
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tracepoint.c
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tsacct.c
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ucount.c
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uid16.c
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umh.c
kernel/umh.c: optimize 'proc_cap_handler()'
2017-11-17 16:10:01 -08:00
up.c
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user_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2017-11-16 12:20:15 -08:00
user-return-notifier.c
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user.c
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utsname_sysctl.c
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utsname.c
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watchdog_hld.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2017-11-15 14:15:21 -08:00