NeilBrown f856dc36b6 rbd: use bio_clone_fast() instead of bio_clone() ... bio_clone() makes a copy of the bi_io_vec, but rbd never changes that, so there is no need for a copy. bio_clone_fast() can be used instead, which avoids making the copy. This requires that we provide a bio_set. bio_clone() uses fs_bio_set, but it isn't, in general, safe to use the same bio_set at different levels of the stack, as that can lead to deadlocks. As filesystems use fs_bio_set, block devices shouldn't. As rbd never stacks, it is safe to have a single global bio_set for all rbd devices to use. So allocate that when the module is initialised, and use it with bio_clone_fast(). Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2017-06-18 12:40:59 -06:00
..
aoe	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
drbd	blk: make the bioset rescue_workqueue optional.	2017-06-18 12:40:59 -06:00
mtip32xx	blk-mq: switch ->queue_rq return value to blk_status_t	2017-06-09 09:27:32 -06:00
paride	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
rsxx	blk: remove bio_set arg from blk_queue_split()	2017-06-18 12:40:59 -06:00
xen-blkback	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
zram	zram: reduce load operation in page_same_filled	2017-05-03 15:52:11 -07:00
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	libnvdimm for 4.12	2017-05-05 18:49:20 -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	block: introduce new block status code type	2017-06-09 09:27:32 -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: introduce new block status code type	2017-06-09 09:27:32 -06:00
DAC960.h
floppy.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
Kconfig	libnvdimm for 4.12	2017-05-05 18:49:20 -07:00
loop.c	loop: Add PF_LESS_THROTTLE to block/loop device thread.	2017-06-18 09:07:42 -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	Linux 4.12-rc5	2017-06-12 08:30:13 -06:00
null_blk.c	blk-mq: switch ->queue_rq return value to blk_status_t	2017-06-09 09:27:32 -06:00
pktcdvd.c	blk: remove bio_set arg from blk_queue_split()	2017-06-18 12:40:59 -06:00
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	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
skd_s1120.h	skd: fix formatting in skd_s1120.h	2013-11-08 09:10:30 -07:00
smart1,2.h
sunvdc.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
swim3.c	block: swim3: make of_device_ids const.	2017-06-16 09:49:13 -06:00
swim_asm.S
swim.c	block: introduce new block status code type	2017-06-09 09:27:32 -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	blk-mq: switch ->queue_rq return value to blk_status_t	2017-06-09 09:27:32 -06:00
xen-blkfront.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
xsysace.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00
z2ram.c	block: introduce new block status code type	2017-06-09 09:27:32 -06:00