Stefan Haberland 3284da34a8 s390/dasd: reduce the default queue depth and nr of hardware queues ... Reduce the default values for the number of hardware queues and queue depth to significantly reduce the memory footprint of a DASD device. The memory consumption per DASD device reduces from approximately 40MB to approximately 1.5MB. This is necessary to build systems with a large number of DASD devices and a reasonable amount of memory. Performance measurements showed that good performance results are possible with the new default values even on systems with lots of CPUs and lots of alias devices. Fixes: e443343e50 ("s390/dasd: blk-mq conversion") Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2018-07-02 11:22:41 +02:00
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block	s390/dasd: reduce the default queue depth and nr of hardware queues	2018-07-02 11:22:41 +02:00
char	treewide: Use array_size() in vzalloc()	2018-06-12 16:19:22 -07:00
cio	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2018-06-19 07:44:51 +09:00
crypto	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
net	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
scsi	SCSI misc on 20180610	2018-06-10 13:01:12 -07:00
virtio	virtio/s390: implement PM operations for virtio_ccw	2018-02-14 14:34:09 +02:00
Makefile	kbuild: rename built-in.o to built-in.a	2018-03-26 02:01:19 +09:00