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Edgar Kaziakhmedov 9776f0db6a nbd: implement bdrv_get_info callback 
Since mirror job supports efficient zero out target mechanism (see
in mirror_dirty_init()), implement bdrv_get_info to make it work
over NBD. Such improvement will allow using the largest chunk possible
and will decrease the number of NBD_CMD_WRITE_ZEROES requests on the wire.

Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Message-Id: <20180118115158.17219-1-edgar.kaziakhmedov@virtuozzo.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2018-01-26 09:58:46 -06:00
..
accounting.c block: make accounting thread-safe 2017-06-16 07:55:00 +08:00
backup.c backup: use copy_bitmap in incremental backup 2017-12-18 10:54:13 -05:00
blkdebug.c block: Align block status requests 2017-10-26 14:45:57 +02:00
blkreplay.c block: change variable names in BlockDriverState 2017-06-26 14:54:46 +02:00
blkverify.c blkverify: Catch bs->exact_filename overflow 2017-06-26 14:54:46 +02:00
block-backend.c block: Don't request I/O permission with BDRV_O_NO_IO 2017-11-21 14:48:22 +01:00
bochs.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
cloop.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
commit.c commit: Simplify reopen of base 2017-12-22 15:05:32 +01:00
crypto.c block: support passthrough of BDRV_REQ_FUA in crypto driver 2017-10-06 16:30:47 +02:00
crypto.h qcow: convert QCow to use QCryptoBlock for encryption 2017-07-11 17:44:56 +02:00
curl.c block/curl: fix minor memory leaks 2017-12-18 15:44:39 -05:00
dirty-bitmap.c hbitmap: add next_zero function 2017-12-18 10:54:13 -05:00
dmg-bz2.c dmg: Move libbz2 code to dmg-bz2.so 2016-10-07 14:14:06 +02:00
dmg.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
dmg.h block: remove "qemu/osdep.h" from header file 2017-12-18 17:07:02 +03:00
file-posix.c file-posix: Clear out first sector in hdev_create 2017-09-26 14:46:23 +02:00
file-win32.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
gluster.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
io.c block: Allow graph changes in subtree drained section 2017-12-22 15:05:32 +01:00
iscsi-opts.c block/iscsi: statically link qemu_iscsi_opts 2017-01-27 18:07:58 +01:00
iscsi.c block/iscsi: fix initialization of iTask in iscsi_co_get_block_status 2018-01-16 14:54:52 +01:00
linux-aio.c block: explicitly acquire aiocontext in aio callbacks that need it 2017-02-21 11:39:39 +00:00
Makefile.objs configure: add dependency 2018-01-22 14:02:33 +00:00
mirror.c blockjob: remove clock argument from block_job_sleep_ns 2017-11-29 15:11:02 +01:00
nbd-client.c nbd: Don't crash when server reports NBD_CMD_READ failure 2017-11-17 08:02:45 -06:00
nbd-client.h nbd: Minimal structured read for client 2017-10-30 21:48:41 +01:00
nbd.c nbd: implement bdrv_get_info callback 2018-01-26 09:58:46 -06:00
nfs.c block/nfs: fix nfs_client_open for filesize greater than 1TB 2017-11-29 15:28:15 +01:00
null.c coroutine: simplify co_aio_sleep_ns() prototype 2017-12-19 09:25:27 +00:00
parallels.c block/parallels: add backing support to readv/writev 2018-01-22 14:02:33 +00:00
parallels.h block/parallels: replace some magic numbers 2018-01-22 14:02:33 +00:00
qapi.c block: Guard against NULL bs->drv 2017-11-17 18:21:31 +01:00
qcow2-bitmap.c qcow2: No persistent dirty bitmaps for compat=0.10 2018-01-23 12:34:42 +01:00
qcow2-cache.c qcow2: Fix overly broad madvise() 2017-11-17 18:21:31 +01:00
qcow2-cluster.c qcow2: Unaligned zero cluster in handle_alloc() 2017-11-17 18:21:30 +01:00
qcow2-refcount.c qcow2: Repair unaligned preallocated zero clusters 2018-01-23 12:34:42 +01:00
qcow2-snapshot.c qcow2: Discard/zero clusters by byte count 2017-05-11 14:28:07 +02:00
qcow2.c qcow2: No persistent dirty bitmaps for compat=0.10 2018-01-23 12:34:42 +01:00
qcow2.h qcow2: get rid of qcow2_backing_read1 routine 2017-12-22 15:03:41 +01:00
qcow.c block/qcow: Add blkdebug events 2018-01-23 12:34:43 +01:00
qed-check.c qed: Use DIV_ROUND_UP 2016-06-07 18:19:24 +03:00
qed-cluster.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-l2-cache.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed-table.c qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
qed.c block: rename bdrv_co_drain to bdrv_co_drain_begin 2017-10-13 12:38:41 +01:00
qed.h qed: protect table cache with CoMutex 2017-07-17 11:34:11 +08:00
quorum.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
raw-format.c block: remove unused bdrv_media_changed 2017-09-04 18:31:13 +02:00
rbd.c block: Deprecate bdrv_set_read_only() and users 2017-11-17 13:35:59 +01:00
replication.c block: Keep nodes drained between reopen_queue/multiple 2017-12-22 15:05:32 +01:00
sheepdog.c Pull request 2017-12-20 11:30:55 +00:00
snapshot.c block: Error out on load_vm with active dirty bitmaps 2017-11-21 14:48:23 +01:00
ssh.c util: remove the obsolete non-blocking connect 2017-09-05 13:21:58 +01:00
stream.c blockjob: remove clock argument from block_job_sleep_ns 2017-11-29 15:11:02 +01:00
throttle-groups.c throttle-groups: forget timer and schedule next TGM on detach 2017-11-16 14:12:57 +00:00
throttle.c block/throttle.c: add bdrv_co_drain_begin/end callbacks 2017-10-13 12:38:41 +01:00
trace-events block: Make bdrv_round_to_clusters() signature more useful 2017-10-26 14:45:57 +02:00
vdi.c vdi: make it thread-safe 2017-07-17 11:28:15 +08:00
vhdx-endian.c vhdx: Use QEMU UUID API 2016-09-23 11:42:52 +08:00
vhdx-log.c vhdx: use QEMU_ALIGN_DOWN 2017-08-31 12:29:07 +02:00
vhdx.c block/vhdx.c: Don't blindly update the header 2017-11-14 18:06:25 +01:00
vhdx.h block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec 2014-12-12 15:42:22 +00:00
vmdk.c block/vmdk: Add blkdebug events 2018-01-23 12:34:43 +01:00
vpc.c vpc: use DIV_ROUND_UP 2017-08-31 12:29:07 +02:00
vvfat.c block: Guard against NULL bs->drv 2017-11-17 18:21:31 +01:00
vxhs.c qobject: Use simpler QDict/QList scalar insertion macros 2017-05-09 09:13:51 +02:00
win32-aio.c block: explicitly acquire aiocontext in aio callbacks that need it 2017-02-21 11:39:39 +00:00
write-threshold.c block: use bdrv_add_before_write_notifier 2016-10-07 13:34:07 +02:00