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1f23816b8e
linux/drivers/block
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Changpeng Liu 1f23816b8e virtio_blk: add discard and write zeroes support 
In commit 88c85538, "virtio-blk: add discard and write zeroes features
to specification" (https://github.com/oasis-tcs/virtio-spec), the virtio
block specification has been extended to add VIRTIO_BLK_T_DISCARD and
VIRTIO_BLK_T_WRITE_ZEROES commands.  This patch enables support for
discard and write zeroes in the virtio-blk driver when the device
advertises the corresponding features, VIRTIO_BLK_F_DISCARD and
VIRTIO_BLK_F_WRITE_ZEROES.

Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-12-19 18:23:49 -05:00
..
aoe aoe: convert aoeblk to blk-mq 2018-10-14 12:47:52 -06:00
drbd Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
mtip32xx mtip32xx: clean an indentation issue, remove extraneous tabs 2018-10-30 14:31:36 -06:00
paride paride: convert pf to blk-mq 2018-10-15 20:08:15 -06:00
rsxx pci-v4.20-changes 2018-10-25 06:50:48 -07:00
xen-blkback xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring 2018-08-27 12:12:04 -04:00
zram drivers/block: remove redundant 'default n' from Kconfig-s 2018-10-10 14:11:08 -06:00
amiflop.c amiflop: convert to blk-mq 2018-10-16 09:49:52 -06:00
ataflop.c ataflop: convert to blk-mq 2018-10-16 09:50:09 -06:00
brd.c block: brd: associate with queue until adding disk 2018-11-01 19:59:51 -06:00
cryptoloop.c block: cryptoloop: Remove VLA usage of skcipher 2018-09-28 12:46:07 +08:00
floppy.c floppy: fix race condition in __floppy_read_block_0() 2018-11-10 08:16:12 -07:00
Kconfig drivers/block: Remove DAC960 driver 2018-10-17 09:42:30 -06:00
loop.c for-linus-20181102 2018-11-02 11:25:48 -07:00
loop.h loop: remember whether sysfs_create_group() was done 2018-05-07 15:26:36 -06:00
Makefile drivers/block: Remove DAC960 driver 2018-10-17 09:42:30 -06:00
nbd.c iov_iter: Separate type from direction and use accessor functions 2018-10-24 00:41:07 +01:00
null_blk_main.c block: Introduce blk_revalidate_disk_zones() 2018-10-25 11:17:40 -06:00
null_blk_zoned.c block: add a report_zones method 2018-10-25 11:17:40 -06:00
null_blk.h block: add a report_zones method 2018-10-25 11:17:40 -06:00
pktcdvd.c pktcdvd: fix fall-through annotation 2018-10-02 08:36:58 -06:00
ps3disk.c ps3disk: convert to blk-mq 2018-10-15 20:07:56 -06:00
ps3vram.c block: genhd: add 'groups' argument to device_add_disk 2018-09-28 08:30:28 -06:00
rbd_types.h
rbd.c libceph, rbd, ceph: move ceph_osdc_alloc_messages() calls 2018-10-22 10:28:22 +02:00
skd_main.c skd: fix unchecked return values 2018-10-25 11:17:39 -06:00
skd_s1120.h
sunvdc.c for-4.20/block-20181021 2018-10-22 17:46:08 +01:00
swim3.c swim3: convert to blk-mq 2018-10-16 09:49:36 -06:00
swim_asm.S
swim.c swim: convert to blk-mq 2018-10-16 09:49:18 -06:00
sx8.c sx8: switch to the generic DMA API 2018-10-18 15:14:45 -06:00
umem.c umem: switch to the generic DMA API 2018-10-18 15:14:47 -06:00
umem.h
virtio_blk.c virtio_blk: add discard and write zeroes support 2018-12-19 18:23:49 -05:00
xen-blkfront.c xen: fixes for 4.20-rc2 2018-11-10 08:58:48 -06:00
xsysace.c xsysace: convert to blk-mq 2018-10-15 20:08:24 -06:00
z2ram.c powerpc updates for 4.20 2018-10-26 14:36:21 -07:00