Thomas Gleixner 6d3aadf3e1 timekeeping: Restructure the timekeeper some more ... Access to time requires to touch two cachelines at minimum 1) The timekeeper data structure 2) The clocksource data structure The access to the clocksource data structure can be avoided as almost all clocksource implementations ignore the argument to the read callback, which is a pointer to the clocksource. But the core needs to touch it to access the members @read and @mask. So we are better off by copying the @read function pointer and the @mask from the clocksource to the core data structure itself. For the most used ktime_get() access all required data including the @read and @mask copies fits together with the sequence counter into a single 64 byte cacheline. For the other time access functions we touch in the current code three cache lines in the worst case. But with the clocksource data copies we can reduce that to two adjacent cachelines, which is more efficient than disjunct cache lines. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>		2014-07-23 15:01:52 -07:00
..
debug	kdb: Use ktime_get_ts()	2014-06-12 16:18:45 +02:00
events	Oleg Nesterov found and fixed a bug in the perf/ftrace/uprobes code where	2014-07-03 18:37:25 -07:00
gcov	gcov: add support for GCC 4.9	2014-06-10 15:34:46 -07:00
irq	genirq: Fix memory leak when calling irq_free_hwirqs()	2014-07-05 21:42:08 +02:00
locking	Merge branch 'locking-urgent-for-linus.patch' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-06-21 07:06:02 -10:00
power	x86, kaslr: boot-time selectable with hibernation	2014-06-16 23:30:44 +02:00
printk	kernel/printk/printk.c: revert "printk: enable interrupts before calling console_trylock_for_printk()"	2014-07-03 09:21:54 -07:00
rcu	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
sched	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-06-12 19:42:15 -07:00
time	timekeeping: Restructure the timekeeper some more	2014-07-23 15:01:52 -07:00
trace	tracing: Remove ftrace_stop/start() from reading the trace file	2014-07-01 12:45:54 -04:00
.gitignore
acct.c	sched: Make task->start_time nanoseconds based	2014-07-23 10:18:05 -07:00
async.c
audit_tree.c
audit_watch.c
audit.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-06-12 14:27:40 -07:00
audit.h
auditfilter.c
auditsc.c	auditsc: audit_krule mask accesses need bounds checking	2014-06-10 08:44:40 -07:00
backtracetest.c	kernel/backtracetest.c: replace no level printk by pr_info()	2014-06-04 16:54:14 -07:00
bounds.c
capability.c	fs,userns: Change inode_capable to capable_wrt_inode_uidgid	2014-06-10 13:57:22 -07:00
cgroup_freezer.c	cgroup: remove css_parent()	2014-05-16 13:22:48 -04:00
cgroup.c	cgroup: fix a race between cgroup_mount() and cgroup_kill_sb()	2014-06-30 10:16:26 -04:00
compat.c	kernel/compat.c: use sizeof() instead of sizeof	2014-06-04 16:54:19 -07:00
configs.c
context_tracking.c	x86/kprobes: Fix build errors and blacklist context_track_user	2014-06-14 09:07:44 +02:00
cpu_pm.c
cpu.c	More ACPI and power management updates for 3.16-rc1	2014-06-12 13:14:19 -07:00
cpuset.c	cpuset: break kernfs active protection in cpuset_write_resmask()	2014-07-01 16:42:28 -04:00
crash_dump.c
cred.c
delayacct.c	delayacct: Remove braindamaged type conversions	2014-07-23 10:18:06 -07:00
dma.c
elfcore.c
exec_domain.c	kernel/exec_domain.c: code clean-up	2014-06-04 16:54:15 -07:00
exit.c	signals: mv {dis,}allow_signal() from sched.h/exit.c to signal.[ch]	2014-06-06 16:08:11 -07:00
extable.c
fork.c	sched: Make task->start_time nanoseconds based	2014-07-23 10:18:05 -07:00
freezer.c
futex_compat.c
futex.c	Merge branch 'next' (accumulated 3.16 merge window patches) into master	2014-06-08 11:31:16 -07:00
groups.c
hung_task.c	kernel/hung_task.c: convert simple_strtoul to kstrtouint	2014-06-04 16:54:15 -07:00
irq_work.c
jump_label.c
kallsyms.c
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks	locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks	2014-06-06 07:58:28 +02:00
Kconfig.preempt
kexec.c	kexec: save PG_head_mask in VMCOREINFO	2014-06-23 16:47:43 -07:00
kmod.c	signals: change wait_for_helper() to use kernel_sigaction()	2014-06-06 16:08:12 -07:00
kprobes.c
ksysfs.c
kthread.c	kthread: fix return value of kthread_create() upon SIGKILL.	2014-06-04 16:53:51 -07:00
latencytop.c	kernel/latencytop.c: convert seq_printf to seq_puts	2014-06-04 16:54:15 -07:00
Makefile	time/timers: Move all time(r) related files into kernel/time	2014-06-23 11:22:35 +02:00
module_signing.c
module-internal.h
module.c	Most of this is cleaning up various driver sysfs permissions so we can	2014-06-11 16:09:14 -07:00
notifier.c
nsproxy.c
padata.c
panic.c	kernel/panic.c: add "crash_kexec_post_notifiers" option for kdump after panic_notifers	2014-06-06 16:08:12 -07:00
params.c
pid_namespace.c
pid.c
profile.c	kernel/profile.c: use static const char instead of static char	2014-06-06 16:08:13 -07:00
ptrace.c
range.c
reboot.c	kernel/reboot.c: convert simple_strtoul to kstrtoint	2014-06-04 16:54:15 -07:00
relay.c
res_counter.c	kernel/res_counter.c: replace simple_strtoull by kstrtoull	2014-06-04 16:54:15 -07:00
resource.c	resources: Clarify sanity check message	2014-05-23 10:47:21 -06:00
seccomp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-06-12 14:27:40 -07:00
signal.c	signals: introduce kernel_sigaction()	2014-06-06 16:08:12 -07:00
smp.c	CPU hotplug, smp: flush any pending IPI callbacks before CPU offline	2014-06-23 16:47:43 -07:00
smpboot.c
smpboot.h
softirq.c	Merge branch 'rcu/next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2014-05-22 11:36:10 +02:00
stacktrace.c
stop_machine.c	kernel/stop_machine.c: kernel-doc warning fix	2014-06-04 16:54:15 -07:00
sys_ni.c	sys_sgetmask/sys_ssetmask: add CONFIG_SGETMASK_SYSCALL	2014-06-04 16:54:14 -07:00
sys.c	sched: Consolidate open coded implementations of nice level frobbing into nice_to_rlimit() and rlimit_to_nice()	2014-05-22 11:16:36 +02:00
sysctl_binary.c
sysctl.c	kernel/watchdog.c: print traces for all cpus on lockup detection	2014-06-23 16:47:44 -07:00
system_certificates.S
system_keyring.c
task_work.c
taskstats.c
test_kprobes.c
torture.c	torture: Remove __init from torture_init_begin/end	2014-05-14 09:46:30 -07:00
tracepoint.c	tracing: syscall_regfunc() should not skip kernel threads	2014-06-21 00:15:26 -04:00
tsacct.c	sched: Make task->start_time nanoseconds based	2014-07-23 10:18:05 -07:00
uid16.c
up.c
user_namespace.c	kernel/user_namespace.c: kernel-doc/checkpatch fixes	2014-06-06 16:08:13 -07:00
user-return-notifier.c
user.c	kernel/user.c: drop unused field 'files' from user_struct	2014-06-04 16:54:16 -07:00
utsname_sysctl.c	sysctl: convert use of typedef ctl_table to struct ctl_table	2014-06-06 16:08:16 -07:00
utsname.c
watchdog.c	kernel/watchdog.c: print traces for all cpus on lockup detection	2014-06-23 16:47:44 -07:00
workqueue_internal.h	workqueue: rename manager_mutex to attach_mutex	2014-05-20 10:59:32 -04:00
workqueue.c	workqueue: zero cpumask of wq_numa_possible_cpumask on init	2014-07-07 09:56:48 -04:00