Jeff Moyer 30e2bc08b2 Revert "block: remove artifical max_hw_sectors cap" ... This reverts commit 34b48db66e. That commit caused performance regressions for streaming I/O workloads on a number of different storage devices, from SATA disks to external RAID arrays. It also managed to trip up some buggy firmware in at least one drive, causing data corruption. The next patch will bump the default max_sectors_kb value to 1280, which will accommodate a 10-data-disk stripe write with chunk size 128k. In the testing I've done using iozone, fio, and aio-stress, a value of 1280 does not show a big performance difference from 512. This will hopefully still help the software RAID setup that Christoph saw the original performance gains with while still not regressing other storage configurations. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-08-18 13:21:13 -07:00
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partitions	Merge branch 'for-3.20/core' of git://git.kernel.dk/linux-block	2015-02-12 14:13:23 -08:00
Kconfig	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
Kconfig.iosched	blkcg: make CONFIG_BLK_CGROUP bool	2012-03-06 21:27:21 +01:00
Makefile	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00
bio-integrity.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
bio.c	block: remove bio_get_nr_vecs()	2015-08-13 12:32:04 -06:00
blk-cgroup.c	blkcg: fix blkcg_policy_data allocation bug	2015-07-09 14:41:11 -06:00
blk-core.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
blk-exec.c	block: move PM request support to IDE	2015-05-05 13:40:42 -06:00
blk-flush.c	blk-mq: fix race between timeout and freeing request	2015-08-15 09:45:21 -06:00
blk-integrity.c	writeback: separate out include/linux/backing-dev-defs.h	2015-06-02 08:33:34 -06:00
blk-ioc.c	block: Substitute rcu_access_pointer() for rcu_dereference_raw()	2014-02-18 12:21:26 -08:00
blk-iopoll.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-03 12:57:53 -07:00
blk-lib.c	block: remove split code in blkdev_issue_{discard,write_same}	2015-08-13 12:31:47 -06:00
blk-map.c	block: manipulate bio->bi_flags through helpers	2015-07-29 08:55:20 -06:00
blk-merge.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
blk-mq-cpu.c	blk-mq: add file comments and update copyright notices	2014-05-28 10:15:41 -06:00
blk-mq-cpumap.c	sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()	2015-05-27 15:22:15 +02:00
blk-mq-sysfs.c	blk-mq: fix buffer overflow when reading sysfs file of 'pending'	2015-08-15 09:45:19 -06:00
blk-mq-tag.c	blk-mq: fix race between timeout and freeing request	2015-08-15 09:45:21 -06:00
blk-mq-tag.h	blk-mq: fix race between timeout and freeing request	2015-08-15 09:45:21 -06:00
blk-mq.c	blk-mq: fix race between timeout and freeing request	2015-08-15 09:45:21 -06:00
blk-mq.h	blk-mq: release mq's kobjects in blk_release_queue()	2015-01-29 08:30:51 -08:00
blk-settings.c	Revert "block: remove artifical max_hw_sectors cap"	2015-08-18 13:21:13 -07:00
blk-softirq.c	block: fix regression with block enabled tagging	2014-04-09 21:54:06 -06:00
blk-sysfs.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
blk-tag.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
blk-throttle.c	blkcg: move block/blk-cgroup.h to include/linux/blk-cgroup.h	2015-06-02 08:33:33 -06:00
blk-timeout.c	blk-mq: Allow requests to never expire	2015-01-08 08:59:01 -07:00
blk.h	blk-mq: fix race between timeout and freeing request	2015-08-15 09:45:21 -06:00
bounce.c	block: manipulate bio->bi_flags through helpers	2015-07-29 08:55:20 -06:00
bsg-lib.c	bsg: Remove unused function bsg_goose_queue()	2012-12-06 14:33:02 +01:00
bsg.c	block: Simplify bsg complete all	2015-02-04 09:57:52 -07:00
cfq-iosched.c	Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block	2015-06-25 16:00:17 -07:00
cmdline-parser.c	block: remove unrelated header files and export symbol	2014-01-21 20:18:26 -08:00
compat_ioctl.c	block, bdi: an active gendisk always has a request_queue associated with it	2014-09-08 10:00:35 -06:00
deadline-iosched.c	block: Stop abusing csd.list for fifo_time	2014-02-24 14:46:32 -08:00
elevator.c	Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block	2015-06-25 16:00:17 -07:00
genhd.c	block: partition: convert percpu ref	2015-07-17 08:41:53 -06:00
ioctl.c	block: replace trylock with mutex_lock in blkdev_reread_part()	2015-05-20 09:05:45 -06:00
ioprio.c	block: Fix computation of merged request priority	2014-10-31 08:30:43 -06:00
noop-iosched.c	elevator: Fix a race in elevator switching	2013-07-03 13:25:24 +02:00
partition-generic.c	block: partition: convert percpu ref	2015-07-17 08:41:53 -06:00
scsi_ioctl.c	block: fix bogus EFAULT error from SG_IO ioctl	2015-06-27 11:43:34 -06:00
t10-pi.c	block: Add T10 Protection Information functions	2014-09-27 09:14:59 -06:00