Martin K. Petersen f3f5da624e block: Do a full clone when splitting discard bios ... This fixes a data corruption bug when using discard on top of MD linear, raid0 and raid10 personalities. Commit 20d0189b10 "block: Introduce new bio_split()" permits sharing the bio_vec between the two resulting bios. That is fine for read/write requests where the bio_vec is immutable. For discards, however, we need to be able to attach a payload and update the bio_vec so the page can get mapped to a scatterlist entry. Therefore the bio_vec can not be shared when splitting discards and we must do a full clone. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reported-by: Seunguk Shin <seunguk.shin@samsung.com> Tested-by: Seunguk Shin <seunguk.shin@samsung.com> Cc: Seunguk Shin <seunguk.shin@samsung.com> Cc: Jens Axboe <axboe@fb.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: <stable@vger.kernel.org> # v3.14+ Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-07-23 16:21:34 -06:00
..
partitions
bio-integrity.c	bio integrity: do not assume bio_integrity_pool exists if bioset exists	2015-07-07 07:46:47 -06:00
bio.c	block: Do a full clone when splitting discard bios	2015-07-23 16:21:34 -06:00
blk-cgroup.c	blkcg: fix gendisk reference leak in blkg_conf_prep()	2015-07-22 16:06:53 -06:00
blk-core.c	block: use FIELD_SIZEOF to calculate size of a field	2015-07-07 07:47:37 -06:00
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iopoll.c
blk-lib.c
blk-map.c
blk-merge.c
blk-mq-cpu.c
blk-mq-cpumap.c
blk-mq-sysfs.c
blk-mq-tag.c
blk-mq-tag.h
blk-mq.c	blk-mq: set default timeout as 30 seconds	2015-07-16 08:39:11 -06:00
blk-mq.h
blk-settings.c
blk-softirq.c
blk-sysfs.c
blk-tag.c
blk-throttle.c
blk-timeout.c
blk.h
bounce.c
bsg-lib.c
bsg.c
cfq-iosched.c
cmdline-parser.c
compat_ioctl.c
deadline-iosched.c
elevator.c
genhd.c
ioctl.c
ioprio.c
Kconfig
Kconfig.iosched
Makefile
noop-iosched.c
partition-generic.c
scsi_ioctl.c
t10-pi.c