Shaohua Li eff2c4f108 nullb: bandwidth control ... In test, we usually expect controllable disk speed. For example, in a raid array, we'd like some disks are fast and some are slow. MD RAID actually has a feature for this. To test the feature, we'd like to make the disk run in specific speed. block throttling probably can be used for this purpose, but it requires cgroup setup. Here we just implement a simple throttling mechanism in the driver. There is slight fluctuation in the mechanism, but it's good enough for test. To configure the bandwidth cap, user sets the 'mbps' attribute. mbps is MB/s. Based on original patch from Kyungchan Koh Signed-off-by: Kyungchan Koh <kkc6196@fb.com> Signed-off-by: Shaohua Li <shli@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2017-08-23 08:54:09 -06:00
..
aoe	block: don't set bounce limit in blk_init_queue	2017-06-27 12:13:45 -06:00
drbd	block: pass in queue to inflight accounting	2017-08-09 13:09:16 -06:00
mtip32xx	Merge branch 'nvme-4.13' of git://git.infradead.org/nvme into for-linus	2017-07-10 11:44:34 -06:00
paride	block: don't set bounce limit in blk_init_queue	2017-06-27 12:13:45 -06:00
rsxx	block: pass in queue to inflight accounting	2017-08-09 13:09:16 -06:00
xen-blkback	xen-blkback: Avoid that gcc 7 warns about fall-through when building with W=1	2017-08-18 08:36:58 -06:00
zram	block: pass in queue to inflight accounting	2017-08-09 13:09:16 -06:00
amiflop.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
ataflop.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
brd.c	ARM: fix rd_size declaration	2017-07-10 16:32:34 -07:00
cciss_cmd.h
cciss_scsi.c	cciss: Remove kmalloc cast	2017-02-22 11:54:49 -07:00
cciss_scsi.h
cciss.c	cciss: initialize struct scsi_req	2017-07-06 12:23:51 -06:00
cciss.h	SCSI misc on 20170220	2017-02-21 11:51:42 -08:00
cryptoloop.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
DAC960.c	block: DAC960: shut up format-overflow warning	2017-07-29 09:00:03 -06:00
DAC960.h
floppy.c	Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2017-07-06 20:57:13 -07:00
Kconfig	nullb: add configfs interface	2017-08-23 08:54:02 -06:00
loop.c	loop: fix to a race condition due to the early registration of device	2017-08-15 12:49:20 -06:00
loop.h	loop: support 4k physical blocksize	2017-06-08 08:40:00 -06:00
Makefile	block: remove the osdblk driver	2017-04-19 09:10:51 -06:00
nbd.c	nbd: change the default nbd partitions	2017-08-17 11:02:59 -06:00
null_blk.c	nullb: bandwidth control	2017-08-23 08:54:09 -06:00
pktcdvd.c	driver core patches for 4.13-rc1	2017-07-03 20:27:48 -07:00
ps3disk.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
ps3vram.c	blk: remove bio_set arg from blk_queue_split()	2017-06-18 12:40:59 -06:00
rbd_types.h	rbd: RBD_V{1,2}_DATA_FORMAT macros	2017-02-20 12:16:15 +01:00
rbd.c	rbd: use bio_clone_fast() instead of bio_clone()	2017-06-18 12:40:59 -06:00
skd_main.c	skd: error pointer dereference in skd_cons_disk()	2017-08-23 08:36:45 -06:00
skd_s1120.h	skd: Use __packed only when needed	2017-08-18 08:45:29 -06:00
smart1,2.h
sunvdc.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
swim3.c	block: don't set bounce limit in blk_init_queue	2017-06-27 12:13:45 -06:00
swim_asm.S
swim.c	block: don't set bounce limit in blk_init_queue	2017-06-27 12:13:45 -06:00
sx8.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
umem.c	blk: remove bio_set arg from blk_queue_split()	2017-06-18 12:40:59 -06:00
umem.h
virtio_blk.c	virtio_blk: Use blk_rq_is_scsi()	2017-08-18 08:36:58 -06:00
xen-blkfront.c	xen-blkfront: Avoid that gcc 7 warns about fall-through when building with W=1	2017-08-18 08:36:58 -06:00
xsysace.c	block: don't set bounce limit in blk_init_queue	2017-06-27 12:13:45 -06:00
z2ram.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00