Martin Schwidefsky 7bfa0a73b2 nohz: Introduce arch_needs_cpu ... commit 3c5d92a0cf upstream. Allow the architecture to request a normal jiffy tick when the system goes idle and tick_nohz_stop_sched_tick is called . On s390 the hook is used to prevent the system going fully idle if there has been an interrupt other than a clock comparator interrupt since the last wakeup. On s390 the HiperSockets response time for 1 connection ping-pong goes down from 42 to 34 microseconds. The CPU cost decreases by 27%. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> LKML-Reference: <20090929122533.402715150@de.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Jolly <jjolly@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2010-08-13 13:20:13 -07:00
..
acpi	ACPI: skip checking BM_STS if the BIOS doesn't ask for it	2010-08-02 10:21:24 -07:00
asm-generic	dma-mapping: fix dma_sync_single_range_*	2010-05-26 14:29:14 -07:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2009-09-11 09:38:37 -07:00
drm	drm/radeon/kms: add FireMV 2400 PCI ID.	2010-04-26 07:41:26 -07:00
keys	RxRPC: Use uX/sX rather than uintX_t/intX_t types	2009-09-16 00:01:13 -07:00
linux	nohz: Introduce arch_needs_cpu	2010-08-13 13:20:13 -07:00
math-emu	math-emu: correct test for downshifting fraction in _FP_FROM_INT()	2010-08-02 10:20:44 -07:00
media	V4L/DVB (13019): video: initial support for ADV7180	2009-09-19 00:53:39 -03:00
mtd
net	sctp: Fix skb_over_panic resulting from multiple invalid parameter errors (CVE-2010-1173) (v4)	2010-07-05 11:11:14 -07:00
pcmcia	PM / yenta: Split resume into early and late parts (rev. 4)	2009-11-03 10:54:58 +01:00
rdma	trivial: fix typo "to to" in multiple files	2009-09-21 15:14:55 +02:00
rxrpc
scsi	SCSI: fc-transport: Use packed modifier for fc_bsg_request structure.	2010-04-26 07:41:30 -07:00
sound	Merge branch 'topic/ymfpci' into for-linus	2009-09-10 15:33:09 +02:00
trace	tracing: Fix ftrace_event_call alignment for use with gcc 4.5	2010-05-12 14:57:14 -07:00
video	davinci-fb-frame-buffer-driver-for-ti-da8xx-omap-l1xx-v4	2009-09-23 07:39:51 -07:00
xen
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