The patch titled
x86_64: prepare idle loop for dynamic ticks
has been removed from the -mm tree. Its filename was
x86_64-prep-idle-loop-for-dynticks.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: x86_64: prepare idle loop for dynamic ticks
From: Chris Wright <chrisw@xxxxxxxxxxxx>
Add tick_nohz_{stop,restart}_sched_tick to idle loop in prepartion for turning
on dynticks. These are just noops until NO_HZ is enabled.
Signed-off-by: Chris Wright <chrisw@xxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: john stultz <johnstul@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86_64/kernel/process.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff -puN arch/x86_64/kernel/process.c~x86_64-prep-idle-loop-for-dynticks arch/x86_64/kernel/process.c
--- a/arch/x86/kernel/process_64.c~x86_64-prep-idle-loop-for-dynticks
+++ a/arch/x86/kernel/process_64.c
@@ -38,6 +38,7 @@
#include <linux/notifier.h>
#include <linux/kprobes.h>
#include <linux/kdebug.h>
+#include <linux/tick.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
@@ -197,7 +198,7 @@ static inline void play_dead(void)
* low exit latency (ie sit in a loop waiting for
* somebody to say that they'd like to reschedule)
*/
-void cpu_idle (void)
+void cpu_idle(void)
{
current_thread_info()->status |= TS_POLLING;
/* endless idle loop with no priority at all */
@@ -208,6 +209,8 @@ void cpu_idle (void)
if (__get_cpu_var(cpu_idle_state))
__get_cpu_var(cpu_idle_state) = 0;
+ tick_nohz_stop_sched_tick();
+
rmb();
idle = pm_idle;
if (!idle)
@@ -228,6 +231,7 @@ void cpu_idle (void)
__exit_idle();
}
+ tick_nohz_restart_sched_tick();
preempt_enable_no_resched();
schedule();
preempt_disable();
_
Patches currently in -mm which might be from chrisw@xxxxxxxxxxxx are
origin.patch
security-convert-lsm-into-a-static-interface.patch
security-convert-lsm-into-a-static-interface-fix.patch
security-convert-lsm-into-a-static-interface-fix-2.patch
security-convert-lsm-into-a-static-interface-fix-2-fix.patch
security-convert-lsm-into-a-static-interface-fix-unionfs.patch
implement-file-posix-capabilities.patch
implement-file-posix-capabilities-fix.patch
file-capabilities-introduce-cap_setfcap.patch
file-capabilities-get_file_caps-cleanups.patch
file-caps-update-selinux-xattr-hooks.patch
file-capabilities-clear-caps-cleanup.patch
file-capabilities-clear-caps-cleanup-fix.patch
file-capabilities-change-xattr-format-v2.patch
file-capabilities-change-fe-to-a-bool.patch
file-caps-clean-up-for-linux-capabilityh.patch
capabilityh-remove-include-of-currenth.patch
file-capabilities-clear-fcaps-on-inode-change.patch
capabilities-reset-current-pdeath_signal-when-increasing-capabilities.patch
security-cleanups.patch
use-erestart_restartblock-if-poll-is-interrupted-by-a-signal.patch
use-erestart_restartblock-if-poll-is-interrupted-by-a-signal-fix.patch
whitespace-fixes-capability-syscalls.patch
-
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