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495ab9c045
linux/kernel
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Andi Kleen 495ab9c045 [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status 
During some profiling I noticed that default_idle causes a lot of
memory traffic. I think that is caused by the atomic operations
to clear/set the polling flag in thread_info. There is actually
no reason to make this atomic - only the idle thread does it
to itself, other CPUs only read it. So I moved it into ti->status.

Converted i386/x86-64/ia64 for now because that was the easiest
way to fix ACPI which also manipulates these flags in its idle
function.

Cc: Nick Piggin <npiggin@novell.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 10:48:21 -07:00
..
irq [PATCH] adjust handle_IRR_event() return type 2006-06-23 07:43:08 -07:00
power Revert "swsusp special saveable pages support" commits 2006-06-25 18:41:00 -07:00
.gitignore
acct.c [PATCH] pacct: none-delayed process accounting accumulation 2006-06-25 10:01:25 -07:00
audit.c [PATCH] log more info for directory entry change events 2006-06-20 05:25:28 -04:00
audit.h [PATCH] log more info for directory entry change events 2006-06-20 05:25:28 -04:00
auditfilter.c [PATCH] log more info for directory entry change events 2006-06-20 05:25:28 -04:00
auditsc.c [PATCH] Doc: add audit & acct to DocBook 2006-06-23 07:43:07 -07:00
capability.c [PATCH] refactor capable() to one implementation, add __capable() helper 2006-03-25 08:22:56 -08:00
compat.c [PATCH] N32 sigset and __COMPAT_ENDIAN_SWAP__ 2006-06-25 10:01:15 -07:00
configs.c
cpu.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
cpuset.c [PATCH] SELinux: add security hook call to mediate attach_task (kernel/cpuset.c) 2006-06-23 07:42:54 -07:00
dma.c
exec_domain.c [PATCH] Fix module refcount leak in __set_personality() 2006-03-24 07:33:30 -08:00
exit.c [PATCH] pacct: avoidance to refer the last thread as a representation of the process 2006-06-25 10:01:25 -07:00
extable.c [PATCH] symbol_put_addr() locks kernel 2006-05-15 11:20:55 -07:00
fork.c [PATCH] pacct: add pacct_struct to fix some pacct bugs. 2006-06-25 10:01:25 -07:00
futex_compat.c [PATCH] futex: check and validate timevals 2006-03-31 12:18:59 -08:00
futex.c [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
hrtimer.c [PATCH] ktime/hrtimer: fix kernel-doc comments 2006-06-25 10:01:23 -07:00
itimer.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
kallsyms.c
Kconfig.hz
Kconfig.preempt
kexec.c [PATCH] Add a sysfs file to determine if a kexec kernel is loaded 2006-06-23 07:43:02 -07:00
kfifo.c
kmod.c [PATCH] wait_for_helper: trivial style cleanup 2006-03-28 18:36:41 -08:00
kprobes.c [PATCH] kprobes: NULL out non-relevant fields in struct kretprobe 2006-04-20 07:54:03 -07:00
ksysfs.c [PATCH] Add a sysfs file to determine if a kexec kernel is loaded 2006-06-23 07:43:02 -07:00
kthread.c [PATCH] kthread: move kernel-doc and put it into DocBook 2006-06-25 10:01:24 -07:00
Makefile [PATCH] x86_64: reliable stack trace support 2006-06-26 10:48:17 -07:00
module.c [PATCH] x86_64: reliable stack trace support 2006-06-26 10:48:17 -07:00
mutex-debug.c [PATCH] fix/simplify mutex debugging code 2006-01-11 08:14:16 -08:00
mutex-debug.h [PATCH] mutex subsystem, debugging code 2006-01-09 15:59:20 -08:00
mutex.c [PATCH] mutex: trivial whitespace cleanups 2006-01-10 14:27:59 -08:00
mutex.h [PATCH] mutex subsystem, core 2006-01-09 15:59:19 -08:00
panic.c [PATCH] the scheduled unexport of panic_timeout 2006-04-11 06:18:40 -07:00
params.c [PATCH] Change dash2underscore() return value to char 2006-03-28 09:16:03 -08:00
pid.c [PATCH] pidhash: Refactor the pid hash table 2006-03-31 12:19:00 -08:00
posix-cpu-timers.c [PATCH] arm_timer: remove a racy and obsolete PF_EXITING check 2006-06-17 10:52:13 -07:00
posix-timers.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
printk.c [PATCH] printk time parameter 2006-06-25 10:01:13 -07:00
profile.c [PATCH] Remove __devinit and __cpuinit from notifier_call definitions 2006-04-26 08:30:03 -07:00
ptrace.c ptrace_attach: fix possible deadlock schenario with irqs 2006-05-11 11:08:49 -07:00
rcupdate.c [PATCH] Make RCU API inaccessible to non-GPL Linux kernel modules 2006-06-23 07:43:07 -07:00
rcutorture.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
relay.c [PATCH] relay: consolidate sendfile() and read() code 2006-03-23 19:58:45 +01:00
resource.c [PATCH] kernel/resource.c: __check_region(): remove pointless __deprecated 2006-01-10 08:02:02 -08:00
sched.c [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status 2006-06-26 10:48:21 -07:00
seccomp.c
signal.c [PATCH] collect sid of those who send signals to auditd 2006-06-20 05:25:21 -04:00
softirq.c [PATCH] cpu hotplug: fix CPU_UP_CANCEL handling 2006-06-25 10:01:22 -07:00
softlockup.c [PATCH] cpu hotplug: fix CPU_UP_CANCEL handling 2006-06-25 10:01:22 -07:00
spinlock.c [PATCH] BUILD_LOCK_OPS: cleanup preempt_disable() usage 2006-03-23 07:38:16 -08:00
stop_machine.c [PATCH] kthread: convert stop_machine into a kthread 2006-06-25 10:01:22 -07:00
sys_ni.c [PATCH] sys_move_pages: 32bit support (i386, x86_64) 2006-06-23 07:42:53 -07:00
sys.c [PATCH] kernel/sys.c: cleanups 2006-06-25 10:01:06 -07:00
sysctl.c [PATCH] x86_64: Add compat_printk and sysctl to turn off compat layer warnings 2006-06-26 10:48:16 -07:00
time.c Fix comments: s/granuality/granularity/ 2006-04-01 01:41:22 +02:00
timer.c [PATCH] Define __raw_get_cpu_var and use it 2006-06-25 10:01:01 -07:00
uid16.c [PATCH] Add more prevent_tail_call() 2006-04-19 16:27:18 -07:00
unwind.c [PATCH] x86_64: allow unwinder to build without module support 2006-06-26 10:48:18 -07:00
user.c [PATCH] selinux: add hooks for key subsystem 2006-06-22 15:05:55 -07:00
wait.c
workqueue.c [PATCH] cpu hotplug: fix CPU_UP_CANCEL handling 2006-06-25 10:01:22 -07:00