Peter Oberparleiter b207f5a8f9 s390/cio: Relax subchannel scan loop ... The CIO layer scans for newly available I/O devices by performing a scan of available subchannels using the Store Subchannel (STSCH) instruction. This processing can take a significant amount of time during which no other task can run on the same CPU (unless CONFIG_PREEMPT has been enabled). As a result, scheduling latencies for other tasks are increased noticeably, especially on a single-CPU system. Fix this problem by explicitly allowing other tasks to be scheduled each time a subchannel has been processed. Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2013-12-16 14:37:40 +01:00
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block	s390/dasd: fix memory leak caused by dangling references to request_queue	2013-12-02 15:31:06 +01:00
char	s390/sclp: replace uninitialized early_event_mask_sccb variable with sccb_early	2013-12-02 15:31:07 +01:00
cio	s390/cio: Relax subchannel scan loop	2013-12-16 14:37:40 +01:00
crypto	s390/s390dbf: use debug_level_enabled() where applicable	2013-10-24 17:16:54 +02:00
kvm	virtio_ring: change host notification API	2013-10-29 11:28:11 +10:30
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-11-13 17:40:34 +09:00
scsi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-11-15 16:47:22 -08:00
Makefile	[S390] split/move machine check handler code	2009-03-26 15:24:10 +01:00