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qemu-e2k/block
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Max Reitz 26536c7fc2 block: Do not truncate file node when formatting 
There is no reason why the format drivers need to truncate the protocol
node when formatting it.  When using the old .bdrv_co_create_ops()
interface, the file will be created with no size option anyway, which
generally gives it a size of 0.  (Exceptions are block devices, which
cannot be truncated anyway.)

When using blockdev-create, the user must have given the file node some
size anyway, so there is no reason why we should override that.

qed is an exception, it needs the file to start completely empty (as
explained by c743849bee).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190918095144.955-4-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
 		2019-10-28 11:59:57 +01:00
..
Makefile.objs block: introduce backup-top filter driver 2019-10-10 10:56:18 +02:00
accounting.c block: add empty account cookie type 2019-10-10 10:56:18 +02:00
aio_task.c block: introduce aio task pool 2019-10-10 10:56:17 +02:00
backup-top.c block/backup: use backup-top instead of write notifiers 2019-10-10 10:56:18 +02:00
backup-top.h block: introduce backup-top filter driver 2019-10-10 10:56:18 +02:00
backup.c block/backup: drop dead code from backup_job_create 2019-10-25 15:15:01 +02:00
blkdebug.c blkdebug: Inject errors on .bdrv_co_block_status() 2019-06-14 14:16:57 +02:00
blklogwrites.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
blkreplay.c block: implement bdrv_snapshot_goto for blkreplay 2019-10-14 17:12:48 +02:00
blkverify.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
block-backend.c block/block-backend: add blk_co_pwritev_part 2019-10-28 11:22:30 +01:00
block-copy.c block/block-copy: increase buffered copy request 2019-10-28 11:22:31 +01:00
bochs.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
cloop.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
commit.c job: drop job_drain 2019-09-10 08:58:43 +02:00
copy-on-read.c block/cor: Drop cor_co_truncate() 2019-10-28 11:59:51 +01:00
create.c block/create: Do not abort if a block driver is not available 2019-09-13 12:18:37 +02:00
crypto.c LUKS: support preallocation 2019-08-19 17:13:26 +02:00
crypto.h Clean up ill-advised or unusual header guards 2019-05-13 08:58:55 +02:00
curl.c curl: Check curl_multi_add_handle()'s return code 2019-09-16 15:31:12 +02:00
dirty-bitmap.c block/qcow2-bitmap: get rid of bdrv_has_changed_persistent_bitmaps 2019-10-17 17:02:32 -04:00
dmg-bz2.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
dmg-lzfse.c block: adding lzfse decompressing support as a module. 2018-12-14 11:52:40 +01:00
dmg.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
dmg.h Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
file-posix.c qapi: query-blockstat: add driver specific file-posix stats 2019-10-10 10:56:18 +02:00
file-win32.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
gluster.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
io.c block: Handle filter truncation like native impl. 2019-10-28 11:59:45 +01:00
iscsi-opts.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
iscsi.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
linux-aio.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
mirror.c mirror: Do not dereference invalid pointers 2019-10-28 11:49:37 +01:00
nbd.c block/nbd: nbd reconnect 2019-10-22 09:22:07 -05:00
nfs.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
null.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
nvme.c block/nvme: add support for discard 2019-10-28 11:34:35 +01:00
parallels.c block: Do not truncate file node when formatting 2019-10-28 11:59:57 +01:00
parallels.h Clean up includes 2018-02-09 05:05:11 +01:00
qapi.c qapi: query-blockstat: add driver specific file-posix stats 2019-10-10 10:56:18 +02:00
qcow.c block: Do not truncate file node when formatting 2019-10-28 11:59:57 +01:00
qcow2-bitmap.c block/qcow2-bitmap: fix and improve qcow2_reopen_bitmaps_rw 2019-10-17 17:53:28 -04:00
qcow2-cache.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
qcow2-cluster.c qcow2: Limit total allocation range to INT_MAX 2019-10-14 17:12:48 +02:00
qcow2-refcount.c qcow2: Fix corruption bug in qcow2_detect_metadata_preallocation() 2019-10-25 15:18:55 +02:00
qcow2-snapshot.c qcow2: Fix v3 snapshot table entry compliancy 2019-10-28 11:54:09 +01:00
qcow2-threads.c block/qcow2: refactor encryption code 2019-09-16 15:36:22 +02:00
qcow2.c block: Do not truncate file node when formatting 2019-10-28 11:59:57 +01:00
qcow2.h qcow2: Add qcow2_check_fix_snapshot_table() 2019-10-28 11:54:01 +01:00
qed-check.c block/qed: add missed coroutine_fn markers 2019-04-30 15:29:00 +02:00
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 block/qed: add missed coroutine_fn markers 2019-04-30 15:29:00 +02:00
qed.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
qed.h block/qed: add missed coroutine_fn markers 2019-04-30 15:29:00 +02:00
quorum.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
raw-format.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
rbd.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
replication.c block/backup: use backup-top instead of write notifiers 2019-10-10 10:56:18 +02:00
sheepdog.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
snapshot.c block/snapshot: Restrict set of snapshot nodes 2019-10-04 11:52:40 +02:00
ssh.c block: Implement .bdrv_has_zero_init_truncate() 2019-08-19 17:13:26 +02:00
stream.c job: drop job_drain 2019-09-10 08:58:43 +02:00
throttle-groups.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
throttle.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
trace-events block/nvme: add support for discard 2019-10-28 11:34:35 +01:00
vdi.c vdi: Make block_status recurse for fixed images 2019-08-19 17:13:26 +02:00
vhdx-endian.c Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
vhdx-log.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
vhdx.c block/vhdx: add check for truncated image files 2019-10-14 17:12:48 +02:00
vhdx.h block/vhdx: Use IEC binary prefixes for size constants 2019-04-30 15:29:00 +02:00
vmdk.c vmdk: Reject invalid compressed writes 2019-09-03 14:55:35 +02:00
vpc.c vpc: Return 0 from vpc_co_create() on success 2019-09-10 08:58:43 +02:00
vvfat.c block: Use QEMU_IS_ALIGNED 2019-09-16 14:48:30 +02:00
vxhs.c replay: add BH oneshot event for block layer 2019-10-14 17:12:48 +02:00
win32-aio.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
write-threshold.c qapi: Drop qapi_event_send_FOO()'s Error ** argument 2018-08-28 18:21:38 +02:00