linux/block
Christoph Hellwig bef13315e9 block: don't try to discard from __blkdev_issue_zeroout
Discard can return -EIO asynchronously if the alignment for the request
isn't suitable for the driver, which makes a proper fallback to other
methods in __blkdev_issue_zeroout impossible.  Thus only issue a sync
discard from blkdev_issue_zeroout an don't try discard at all from
__blkdev_issue_zeroout as a non-invasive workaround.

One more reason why abusing discard for zeroing must die..

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Eryu Guan <eguan@redhat.com>
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-01-13 15:18:16 -07:00
..
partitions Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
badblocks.c badblocks: badblocks_set/clear update unacked_exist 2016-10-21 15:45:47 -06:00
bio-integrity.c block: remove bio_is_rw 2016-10-28 08:45:17 -06:00
bio.c block: improve handling of the magic discard payload 2016-12-09 08:30:51 -07:00
blk-cgroup.c block,blkcg: use __GFP_NOWARN for best-effort allocations in blkcg 2016-11-22 08:59:49 -07:00
blk-core.c Merge branch 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2016-12-13 13:26:24 -08:00
blk-exec.c block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -06:00
blk-flush.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-integrity.c
blk-ioc.c
blk-lib.c block: don't try to discard from __blkdev_issue_zeroout 2017-01-13 15:18:16 -07:00
blk-map.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-merge.c block: improve handling of the magic discard payload 2016-12-09 08:30:51 -07:00
blk-mq-cpumap.c blk-mq: export blk_mq_map_queues 2016-11-08 17:30:00 -05:00
blk-mq-pci.c
blk-mq-sysfs.c block: add scalable completion tracking of requests 2016-11-10 13:53:26 -07:00
blk-mq-tag.c
blk-mq-tag.h
blk-mq.c ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
blk-mq.h SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
blk-settings.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-softirq.c
blk-stat.c blk-stat: fix a few cases of missing batch flushing 2016-12-09 13:08:35 -07:00
blk-stat.h block: add scalable completion tracking of requests 2016-11-10 13:53:26 -07:00
blk-sysfs.c Merge branch 'for-4.10/block' of git://git.kernel.dk/linux-block 2016-12-13 10:19:16 -08:00
blk-tag.c block: split out request-only flags into a new namespace 2016-10-28 08:45:17 -06:00
blk-throttle.c block: replace REQ_THROTTLED with a bio flag 2016-10-28 08:45:17 -06:00
blk-timeout.c
blk-wbt.c block: Avoid that sparse complains about context imbalance in __wbt_wait() 2017-01-02 09:48:47 -07:00
blk-wbt.h blk-wbt: allow wbt to be enabled always through sysfs 2016-11-28 10:27:03 -07:00
blk-zoned.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
blk.h blk-mq: implement hybrid poll mode for sync O_DIRECT 2016-11-17 13:34:51 -07:00
bounce.c
bsg-lib.c SCSI misc on 20161213 2016-12-14 10:49:33 -08:00
bsg.c sg_write()/bsg_write() is not fit to be called under KERNEL_DS 2016-12-22 23:03:42 -05:00
cfq-iosched.c blk-wbt: cleanup disable-by-default for CFQ 2016-11-28 10:27:03 -07:00
cmdline-parser.c
compat_ioctl.c
deadline-iosched.c
elevator.c elevator: make the rqhash helpers exported 2016-12-09 09:03:02 -07:00
genhd.c
ioctl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ioprio.c
Kconfig block: hook up writeback throttling 2016-11-10 13:53:40 -07:00
Kconfig.iosched
Makefile blk-wbt: add general throttling mechanism 2016-11-10 13:53:32 -07:00
noop-iosched.c
partition-generic.c block: Rename blk_queue_zone_size and bdev_zone_size 2017-01-12 07:58:32 -07:00
scsi_ioctl.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
t10-pi.c