Peter Zijlstra e895dad0a5 sched, idle: Fix the idle polling state logic ... commit ea81174789 upstream. Mike reported that commit 7d1a9417 ("x86: Use generic idle loop") regressed several workloads and caused excessive reschedule interrupts. The patch in question failed to notice that the x86 code had an inverted sense of the polling state versus the new generic code (x86: default polling, generic: default !polling). Fix the two prominent x86 mwait based idle drivers and introduce a few new generic polling helpers (fixing the wrong smp_mb__after_clear_bit usage). Also switch the idle routines to using tif_need_resched() which is an immediate TIF_NEED_RESCHED test as opposed to need_resched which will end up being slightly different. Reported-by: Mike Galbraith <bitbucket@online.de> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: lenb@kernel.org Cc: tglx@linutronix.de Link: http://lkml.kernel.org/n/tip-nc03imb0etuefmzybzj7sprf@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-11-29 11:11:42 -08:00
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acpi	ACPI: Try harder to resolve _ADR collisions for bridges	2013-08-29 09:47:29 -07:00
asm-generic	mm: Fix generic hugetlb pte check return type.	2013-10-13 16:08:33 -07:00
clocksource	ARM: late Exynos multiplatform changes	2013-05-07 11:28:42 -07:00
crypto
drm	Merge branch 'drm-radeon-sun-hainan' of git://people.freedesktop.org/~airlied/linux	2013-05-21 08:50:57 -07:00
dt-bindings
keys
linux	sched, idle: Fix the idle polling state logic	2013-11-29 11:11:42 -08:00
math-emu
media	media: v4l2: added missing mutex.h include to v4l2-ctrls.h	2013-09-26 17:18:26 -07:00
memory
misc
net	ipv6: reset dst.expires value when clearing expire flag	2013-11-20 12:27:46 -08:00
pcmcia
ras
rdma
rxrpc
scsi	Merge branch 'postmerge' into for-linus	2013-05-10 07:54:01 -07:00
sound	ASoC: dapm: Treat DAI widgets like AIF widgets for power	2013-06-07 15:54:50 +01:00
target	iscsi-target: Fix iscsit_sequence_cmd reject handling for iser	2013-08-04 16:51:17 +08:00
trace	Fixed regressions (two stability regressions and a performance	2013-05-14 09:30:54 -07:00
uapi	perf: Fix perf ring buffer memory ordering	2013-11-20 12:27:47 -08:00
video	Merge branch 'fbdev-3.10-fixes' of git://gitorious.org/linux-omap-dss2/linux into linux-fbdev/for-3.10-fixes	2013-05-29 17:00:34 +08:00
xen	xenbus: delay xenbus frontend resume if xenstored is not running	2013-05-29 09:04:19 -04:00
Kbuild