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Paul E. McKenney 704dd435ac rcu: Consolidate last open-coded expedited memory barrier 
One of the requirements on RCU grace periods is that if there is a
causal chain of operations that starts after one grace period and
ends before another grace period, then the two grace periods must
be serialized.  There has been (and might still be) code that relies
on this, for example, certain types of reference-counting code that
does a call_rcu() within an RCU callback function.

This requirement is why there is an smp_mb() at the end of both
synchronize_sched_expedited() and synchronize_rcu_expedited().
However, this is the only smp_mb() in these functions, so it would
be nicer to consolidate it into rcu_exp_gp_seq_end().  This commit
does just that.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2015-07-17 14:58:59 -07:00
..
bpf
bpf: allow networking programs to use bpf_trace_printk() for debugging
2015-06-15 15:53:50 -07:00
configs
kconfig: add xenconfig defconfig helper
2015-06-16 11:04:29 +01:00
debug
debug: prevent entering debug mode on panic/exception.
2015-02-19 12:39:03 -06:00
events
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
gcov
gcov: add support for GCC 5.1
2015-06-30 19:44:57 -07:00
irq
Merge branch 'irq/for-x86' into irq/core
2015-06-20 19:14:31 +02:00
livepatch
Merge branches 'for-4.1/upstream-fixes', 'for-4.2/kaslr' and 'for-4.2/upstream' into for-linus
2015-06-22 16:26:56 +02:00
locking
Merge branch 'sched-hrtimers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-24 15:09:40 -07:00
power
Power management and ACPI fixes for v4.2-rc1
2015-07-01 14:17:44 -07:00
printk
printk: improve the description of /dev/kmsg line format
2015-06-30 19:44:59 -07:00
rcu
rcu: Consolidate last open-coded expedited memory barrier
2015-07-17 14:58:59 -07:00
sched
Except for the preempt notifiers fix, these are all small bugfixes
2015-07-04 11:29:59 -07:00
time
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-07-01 15:44:18 -07:00
trace
This patch series contains several clean ups and even a new trace clock
2015-06-26 14:02:43 -07:00
.gitignore
…
acct.c
acct: check FMODE_CAN_WRITE
2015-04-11 22:27:55 -04:00
async.c
kernel/async.c: switch to pr_foo()
2014-10-09 22:26:04 -04:00
audit_tree.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-04-26 17:22:07 -07:00
audit_watch.c
VFS: audit: d_backing_inode() annotations
2015-04-15 15:06:55 -04:00
audit.c
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-06-27 13:53:16 -07:00
audit.h
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-04-22 14:49:23 -07:00
auditfilter.c
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-02-11 20:07:47 -08:00
auditsc.c
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
2015-06-27 13:53:16 -07:00
backtracetest.c
…
bounds.c
…
capability.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
cgroup_freezer.c
…
cgroup.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
compat.c
compat: cleanup coding in compat_get_bitmap() and compat_put_bitmap()
2015-06-04 23:57:18 +02:00
configs.c
…
context_tracking.c
context_tracking: Inherit TIF_NOHZ through forks instead of context switches
2015-05-07 12:02:51 +02:00
cpu_pm.c
…
cpu.c
cpu: Remove new instance of __cpuinit that crept back in
2015-05-27 12:58:39 -07:00
cpuset.c
kernel, cpuset: remove exception for __GFP_THISNODE
2015-04-14 16:49:03 -07:00
crash_dump.c
…
cred.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
Remove rest of exec domains.
2015-04-12 21:03:31 +02:00
exit.c
exit,stats: /* obey this comment */
2015-06-25 17:00:43 -07:00
extable.c
ftrace/x86/extable: Add is_ftrace_trampoline() function
2014-11-19 15:25:26 -05:00
fork.c
Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-06-26 19:50:04 -07:00
freezer.c
freezer: remove obsolete comments in __thaw_task()
2014-10-21 23:44:20 +02:00
futex_compat.c
…
futex.c
Merge branch 'sched-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-24 14:46:01 -07:00
groups.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
hung_task.c
kernel/hung_task.c: change hung_task.c to use for_each_process_thread()
2015-04-15 16:35:22 -07:00
irq_work.c
percpu: Convert remaining __get_cpu_var uses in 3.18-rcX
2014-10-29 11:18:18 -04:00
jump_label.c
module, jump_label: Fix module locking
2015-05-27 11:09:50 +09:30
kallsyms.c
kernel/kallsyms.c: use __seq_open_private()
2014-10-14 02:18:16 +02:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
locking/qrwlock: Rename QUEUE_RWLOCK to QUEUED_RWLOCKS
2015-05-12 09:46:00 +02:00
Kconfig.preempt
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kexec.c
kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path
2015-06-30 19:44:57 -07:00
kmod.c
usermodehelper: kill the kmod_thread_locker logic
2014-12-10 17:41:17 -08:00
kprobes.c
kprobes: makes kprobes/enabled works correctly for optimized kprobes.
2015-02-13 21:21:42 -08:00
ksysfs.c
…
kthread.c
kernel/kthread.c: partial revert of 81c98869faa5 ("kthread: ensure locality of task_struct allocations")
2014-10-09 22:25:51 -04:00
latencytop.c
…
Makefile
make certificate list change message more useful
2015-07-02 16:42:13 -07:00
module_signing.c
…
module-internal.h
…
module.c
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00
notifier.c
rcu: Make SRCU optional by using CONFIG_SRCU
2015-01-06 11:04:29 -08:00
nsproxy.c
bury struct proc_ns in fs/proc
2014-12-04 14:34:54 -05:00
padata.c
padata: use %*pb[l] to print bitmaps including cpumasks and nodemasks
2015-02-13 21:21:38 -08:00
panic.c
kernel/panic/kexec: fix "crash_kexec_post_notifiers" option issue in oops path
2015-06-30 19:44:57 -07:00
params.c
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00
pid_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-12-16 15:53:03 -08:00
pid.c
fork: report pid reservation failure properly
2015-04-17 09:04:06 -04:00
profile.c
profile: use %*pb[l] to print bitmaps including cpumasks and nodemasks
2015-02-13 21:21:38 -08:00
ptrace.c
ptrace: ptrace_detach() can no longer race with SIGKILL
2015-04-17 09:04:06 -04:00
range.c
kernel: avoid overflow in cmp_range
2015-01-17 10:02:23 +13:00
reboot.c
kernel/reboot.c: add orderly_reboot for graceful reboot
2015-04-15 16:35:23 -07:00
relay.c
kernel/relay.c: use kvfree() in relay_free_page_array()
2015-06-30 19:44:59 -07:00
resource.c
kernel/resource.c: remove deprecated __check_region() and friends
2015-04-15 16:35:22 -07:00
seccomp.c
seccomp, filter: add and use bpf_prog_create_from_user from seccomp
2015-05-09 17:35:05 -04:00
signal.c
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2015-06-27 13:26:03 -07:00
smp.c
smp: Fix error case handling in smp_call_function_*()
2015-04-19 13:19:23 -07:00
smpboot.c
watchdog: add watchdog_cpumask sysctl to assist nohz
2015-06-24 17:49:40 -07:00
smpboot.h
…
softirq.c
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-02-09 15:24:03 -08:00
stacktrace.c
stacktrace: introduce snprint_stack_trace for buffer output
2014-12-13 12:42:48 -08:00
stop_machine.c
sched/stop_machine: Fix deadlock between multiple stop_two_cpus()
2015-06-19 10:03:12 +02:00
sys_ni.c
kernel: conditionally support non-root users, groups and capabilities
2015-04-15 16:35:22 -07:00
sys.c
prctl: more prctl(PR_SET_MM_*) checks
2015-06-25 17:00:37 -07:00
sysctl_binary.c
kernel: add panic_on_warn
2014-12-10 17:41:10 -08:00
sysctl.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
system_certificates.S
…
system_keyring.c
…
task_work.c
…
taskstats.c
netlink: make nlmsg_end() and genlmsg_end() void
2015-01-18 01:03:45 -05:00
test_kprobes.c
…
torture.c
rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE()
2015-05-27 12:56:15 -07:00
tracepoint.c
…
tsacct.c
…
uid16.c
groups: Consolidate the setgroups permission checks
2014-12-05 17:19:27 -06:00
up.c
…
user_namespace.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2014-12-17 12:31:40 -08:00
user-return-notifier.c
…
user.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2014-12-17 12:31:40 -08:00
utsname_sysctl.c
…
utsname.c
copy address of proc_ns_ops into ns_common
2014-12-04 14:34:47 -05:00
watchdog.c
watchdog: add watchdog_cpumask sysctl to assist nohz
2015-06-24 17:49:40 -07:00
workqueue_internal.h
…
workqueue.c
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00