Eric Blake 169407e1f7 nbd: Allow unmap and fua during write zeroes ...

Commit fa778fff wired up support to send the NBD_CMD_WRITE_ZEROES,
but forgot to inform the block layer that FUA unmapping of zeroes is
supported.  Without BDRV_REQ_MAY_UNMAP listed as a supported flag,
the block layer will always insist on the NBD layer passing
NBD_CMD_FLAG_NO_HOLE, resulting in the server always allocating
things even when it was desired to let the server punch holes.
Similarly, failing to set BDRV_REQ_FUA means that the client may
send unnecessary NBD_CMD_FLUSH when it could have instead used the
NBD_CMD_FLAG_FUA bit.

CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1479413642-22463-2-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2016-11-22 23:26:51 +01:00

..

accounting.c

…

archipelago.c

block: use aio_bh_schedule_oneshot

2016-10-07 13:34:07 +02:00

backup.c

blockjob: refactor backup_start as backup_job_create

2016-11-14 22:47:34 -05:00

blkdebug.c

block: use aio_bh_schedule_oneshot

2016-10-07 13:34:07 +02:00

blkreplay.c

…

blkverify.c

block: use aio_bh_schedule_oneshot

2016-10-07 13:34:07 +02:00

block-backend.c

block-backend: Always notify on blk_eject

2016-11-14 11:15:54 -05:00

bochs.c

…

cloop.c

…

commit.c

blockjob: add block_job_start

2016-11-14 22:47:34 -05:00

crypto.c

…

curl.c

block/curl: Do not wait for data beyond EOF

2016-11-14 22:47:34 -05:00

dirty-bitmap.c

block: More operations for meta dirty bitmap

2016-10-24 17:56:07 +02:00

dmg-bz2.c

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

dmg.c

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

dmg.h

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

gluster.c

gluster: Fix use after free in glfs_clear_preopened()

2016-11-21 17:04:43 -05:00

io.c

block: Don't mark node clean after failed flush

2016-11-08 16:06:35 +00:00

iscsi.c

block/iscsi: Adding new iSER transport layer option

2016-10-24 11:30:55 +02:00

linux-aio.c

…

Makefile.objs

dmg: Move libbz2 code to dmg-bz2.so

2016-10-07 14:14:06 +02:00

mirror.c

mirror: do not flush every time the disks are synced

2016-11-14 22:49:26 -05:00

nbd-client.c

nbd: Allow unmap and fua during write zeroes

2016-11-22 23:26:51 +01:00

nbd-client.h

nbd: Implement NBD_CMD_WRITE_ZEROES on client

2016-11-02 09:28:56 +01:00

nbd.c

block/nbd: Fix the leaked visitor

2016-11-11 15:54:55 +01:00

nfs.c

nfs: Fix memory leak in nfs_file_create()

2016-11-11 15:54:55 +01:00

null.c

block: use aio_bh_schedule_oneshot

2016-10-07 13:34:07 +02:00

parallels.c

…

qapi.c

qapi: rename QmpOutputVisitor to QObjectOutputVisitor

2016-10-25 16:25:54 +02:00

qcow2-cache.c

…

qcow2-cluster.c

qcow2: Support BDRV_REQ_MAY_UNMAP

2016-10-24 17:54:03 +02:00

qcow2-refcount.c

…

qcow2-snapshot.c

…

qcow2.c

qcow2: Support BDRV_REQ_MAY_UNMAP

2016-10-24 17:54:03 +02:00

qcow2.h

qcow2: Remove stale FIXME comment

2016-11-11 15:54:55 +01:00

qcow.c

crypto: extend mode as a parameter in qcrypto_cipher_supports()

2016-10-19 10:09:24 +01:00

qed-check.c

…

qed-cluster.c

…

qed-gencb.c

…

qed-l2-cache.c

…

qed-table.c

block: introduce BDRV_POLL_WHILE

2016-10-28 21:50:18 +08:00

qed.c

qed: Implement .bdrv_drain

2016-10-28 21:50:18 +08:00

qed.h

block: use aio_bh_schedule_oneshot

2016-10-07 13:34:07 +02:00

quorum.c

quorum: do not allocate multiple iovecs for FIFO strategy

2016-10-24 17:56:06 +02:00

raw_bsd.c

raw_bsd: don't check size alignment when only offset is set

2016-11-11 15:54:55 +01:00

raw-posix.c

raw-posix: Rename 'raw_s' to 'rs'

2016-11-11 15:56:22 +01:00

raw-win32.c

block: improve error handling in raw_open

2016-10-24 17:54:03 +02:00

rbd.c

rbd: make the code more readable

2016-11-01 07:55:57 -04:00

replication.c

blockjob: refactor backup_start as backup_job_create

2016-11-14 22:47:34 -05:00

sheepdog.c

block: only call aio_poll on the current thread's AioContext

2016-10-28 21:50:18 +08:00

snapshot.c

…

ssh.c

block/ssh: Code cleanup for unused parameter

2016-11-11 15:54:55 +01:00

stream.c

blockjob: add block_job_start

2016-11-14 22:47:34 -05:00

throttle-groups.c

throttle: Correct access to wrong BlockBackendPublic structures

2016-10-24 17:54:03 +02:00

trace-events

blockjob: add block_job_start

2016-11-14 22:47:34 -05:00

vdi.c

…

vhdx-endian.c

…

vhdx-log.c

…

vhdx.c

…

vhdx.h

…

vmdk.c

…

vpc.c

…

vvfat.c

…

win32-aio.c

…

write-threshold.c

…