Eric Dumazet 60af388d23 rseq: Optimize rseq_update_cpu_id() ... Two put_user() in rseq_update_cpu_id() are replaced by a pair of unsafe_put_user() with appropriate surroundings. This removes one stac/clac pair on x86 in fast path. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Link: https://lkml.kernel.org/r/20210413203352.71350-2-eric.dumazet@gmail.com		2021-04-14 18:04:09 +02:00
..
bpf	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
cgroup	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
configs
debug	kgdb: fix to kill breakpoints on initmem after boot	2021-02-26 09:41:05 -08:00
dma	Merge branch 'stable/for-linus-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb	2021-02-26 13:59:32 -08:00
entry	entry: Explicitly flush pending rcuog wakeup before last rescheduling point	2021-02-17 14:12:43 +01:00
events	kernel: delete repeated words in comments	2021-02-26 09:41:03 -08:00
gcov	init/gcov: allow CONFIG_CONSTRUCTORS on UML to fix module gcov	2021-02-05 11:03:47 -08:00
irq	Driver core / debugfs update for 5.12-rc1	2021-02-24 10:13:55 -08:00
kcsan
livepatch	kallsyms: refactor {,module_}kallsyms_on_each_symbol	2021-02-08 12:22:08 +01:00
locking	kernel: delete repeated words in comments	2021-02-26 09:41:03 -08:00
power	Merge branches 'powercap' and 'pm-misc'	2021-02-15 18:50:01 +01:00
printk	Merge branch 'printk-rework' into for-linus	2021-02-22 13:43:55 +01:00
rcu	Scheduler updates for v5.12:	2021-02-21 12:35:04 -08:00
sched	sched/fair: Introduce a CPU capacity comparison helper	2021-04-09 18:02:21 +02:00
time	These are the latest RCU updates for v5.12:	2021-02-21 12:04:41 -08:00
trace	tracing: Skip selftests if tracing is disabled	2021-03-04 09:51:25 -05:00
.gitignore
acct.c
async.c
audit.c	audit: Remove leftover reference to the audit_tasklet	2021-01-15 11:58:10 -05:00
audit.h
audit_fsnotify.c	audit_alloc_mark(): don't open-code ERR_CAST()	2021-02-23 10:25:27 -05:00
audit_tree.c
audit_watch.c
auditfilter.c
auditsc.c	idmapped-mounts-v5.12	2021-02-23 13:39:45 -08:00
backtracetest.c
bounds.c
capability.c	capability: handle idmapped mounts	2021-01-24 14:27:16 +01:00
compat.c
configs.c
context_tracking.c
cpu.c	cpu/hotplug: Add cpuhp_invoke_callback_range()	2021-03-06 12:40:22 +01:00
cpu_pm.c
crash_core.c
crash_dump.c
cred.c
delayacct.c
dma.c
exec_domain.c
exit.c	signal: Allow tasks to cache one sigqueue struct	2021-04-14 18:04:08 +02:00
extable.c
fail_function.c
fork.c	signal: Allow tasks to cache one sigqueue struct	2021-04-14 18:04:08 +02:00
freezer.c
futex.c	Merge branch 'linus' into locking/core, to pick up upstream fixes	2021-02-12 12:54:58 +01:00
gen_kheaders.sh
groups.c	groups: simplify struct group_info allocation	2021-02-26 09:41:03 -08:00
hung_task.c
iomem.c
irq_work.c
jump_label.c
kallsyms.c	kallsyms: only build {,module_}kallsyms_on_each_symbol when required	2021-02-08 12:24:04 +01:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt	preempt: Introduce CONFIG_PREEMPT_DYNAMIC	2021-02-17 14:12:24 +01:00
kcov.c
kexec.c
kexec_core.c	Merge branch 'work.elf-compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-02-21 09:29:23 -08:00
kexec_elf.c
kexec_file.c	ima: Free IMA measurement buffer after kexec syscall	2021-02-10 15:49:38 -05:00
kexec_internal.h	kexec: move machine_kexec_post_load() to public interface	2021-02-22 12:33:26 +00:00
kheaders.c
kmod.c
kprobes.c	kprobes: Fix to delay the kprobes jump optimization	2021-02-19 14:57:12 -05:00
ksysfs.c
kthread.c	- Correct the marking of kthreads which are supposed to run on a specific,	2021-01-24 10:09:20 -08:00
latencytop.c
Makefile	kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE	2021-02-16 09:59:41 +01:00
module-internal.h
module.c	module: potential uninitialized return in module_kallsyms_on_each_symbol()	2021-02-10 16:57:04 +01:00
module_signature.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
module_signing.c	module: harden ELF info handling	2021-01-19 10:24:45 +01:00
notifier.c
nsproxy.c
padata.c
panic.c
params.c
pid.c
pid_namespace.c
profile.c
ptrace.c	rseq, ptrace: Add PTRACE_GET_RSEQ_CONFIGURATION request	2021-03-17 16:15:39 +01:00
range.c
reboot.c
regset.c
relay.c
resource.c
resource_kunit.c
rseq.c	rseq: Optimize rseq_update_cpu_id()	2021-04-14 18:04:09 +02:00
scftorture.c
scs.c
seccomp.c	seccomp: Improve performace by optimizing rmb()	2021-02-10 12:40:11 -08:00
signal.c	signal: Allow tasks to cache one sigqueue struct	2021-04-14 18:04:08 +02:00
smp.c	smp: Process pending softirqs in flush_smp_call_function_from_idle()	2021-02-17 14:12:42 +01:00
smpboot.c	kthread: Extract KTHREAD_IS_PER_CPU	2021-01-22 15:09:42 +01:00
smpboot.h
softirq.c	softirq: Move do_softirq_own_stack() to generic asm header	2021-02-10 23:34:16 +01:00
stackleak.c
stacktrace.c
static_call.c	static_call: Allow module use without exposing static_call_key	2021-02-17 14:12:42 +01:00
stop_machine.c	stop_machine: Add caller debug info to queue_stop_cpus_work	2021-03-23 16:01:58 +01:00
sys.c	Kbuild updates for v5.12	2021-02-25 10:17:31 -08:00
sys_ni.c
sysctl-test.c
sysctl.c	sysctl.c: fix underflow value setting risk in vm_table	2021-02-26 09:41:03 -08:00
task_work.c
taskstats.c
test_kprobes.c
torture.c
tracepoint.c	tracepoints: Code clean up	2021-02-09 12:27:29 -05:00
tsacct.c
ucount.c
uid16.c
uid16.h
umh.c
up.c
user-return-notifier.c
user.c
user_namespace.c
usermode_driver.c
utsname.c
utsname_sysctl.c
watch_queue.c	watch_queue: rectify kernel-doc for init_watch()	2021-01-26 11:16:34 +00:00
watchdog.c
watchdog_hld.c
workqueue.c	Merge branch 'for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2021-02-22 17:06:54 -08:00
workqueue_internal.h