Oleg Nesterov 6fb614920b task_work_run: don't take ->pi_lock unconditionally ... As Peter pointed out, task_work() can avoid ->pi_lock and cmpxchg() if task->task_works == NULL && !PF_EXITING. And in fact the only reason why task_work_run() needs ->pi_lock is the possible race with task_work_cancel(), we can optimize this code and make the locking more clear. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2020-03-02 14:06:33 -07:00
..
bpf	bpf: Fix a potential deadlock with bpf_map_do_batch	2020-02-19 16:01:25 -08:00
cgroup	Merge branch 'for-5.6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2020-02-10 17:07:05 -08:00
configs
debug	Revert "kdb: Get rid of confusing diag msg from "rd" if current task has no regs"	2020-02-06 11:40:09 +00:00
dma	dma-direct: improve DMA mask overflow reporting	2020-02-05 18:53:41 +01:00
events	A set of fixes and improvements for the perf subsystem:	2020-02-09 12:04:09 -08:00
gcov
irq	genirq/proc: Reject invalid affinity masks (again)	2020-02-14 09:43:17 +01:00
livepatch
locking	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
power	PM / hibernate: fix typo "reserverd_size" -> "reserved_size"	2020-02-20 11:58:01 +01:00
printk
rcu
sched	Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2020-02-15 12:51:22 -08:00
time	y2038: remove unused time32 interfaces	2020-02-21 11:22:15 -08:00
trace	block-5.6-2020-02-28	2020-02-28 11:43:30 -08:00
.gitignore
acct.c
async.c
audit.c	audit: always check the netlink payload length in audit_receive_msg()	2020-02-24 16:38:57 -05:00
audit.h
audit_fsnotify.c
audit_tree.c
audit_watch.c
auditfilter.c	audit: fix error handling in audit_data_to_entry()	2020-02-22 20:36:47 -05:00
auditsc.c
backtracetest.c
bounds.c
capability.c
compat.c	y2038: remove unused time32 interfaces	2020-02-21 11:22:15 -08:00
configs.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
context_tracking.c
cpu.c
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c
extable.c
fail_function.c
fork.c	hmm related patches for 5.6	2020-01-29 19:56:50 -08:00
freezer.c
futex.c
gen_kheaders.sh
groups.c
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c
kexec.c
kexec_core.c
kexec_elf.c
kexec_file.c
kexec_internal.h
kheaders.c
kmod.c
kprobes.c
ksysfs.c
kthread.c
latencytop.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
Makefile	kcov: ignore fault-inject and stacktrace	2020-01-31 10:30:41 -08:00
module-internal.h
module.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
module_signature.c
module_signing.c
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c
profile.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
ptrace.c
range.c
reboot.c
relay.c
resource.c
rseq.c
seccomp.c
signal.c	signal: avoid double atomic counter increments for user accounting	2020-02-26 09:54:03 -08:00
smp.c
smpboot.c
smpboot.h
softirq.c
stackleak.c
stacktrace.c
stop_machine.c
sys.c
sys_ni.c
sysctl-test.c
sysctl.c	s390: remove obsolete ieee_emulation_warnings	2020-02-19 13:51:46 +01:00
sysctl_binary.c
task_work.c	task_work_run: don't take ->pi_lock unconditionally	2020-03-02 14:06:33 -07:00
taskstats.c
test_kprobes.c
torture.c
tracepoint.c
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c	smp/up: Make smp_call_function_single() match SMP semantics	2020-02-07 15:34:12 +01:00
user-return-notifier.c
user.c
user_namespace.c
utsname.c
utsname_sysctl.c
watchdog.c
watchdog_hld.c
workqueue.c
workqueue_internal.h