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Max Reitz e8d04f9237 block: Pass truncate exact=true where reasonable 
This is a change in behavior, so all instances need a good
justification.  The comments added here should explain my reasoning.

qed already had a comment that suggests it always expected
bdrv_truncate()/blk_truncate() to behave as if exact=true were passed
(c743849bee7 came eight months before 55b949c8476), so it was simply
broken until now.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190918095144.955-8-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
[mreitz: Changed comment in qed.c to explain why a new QED file must be
         empty, as requested and suggested by Maxim]
Signed-off-by: Max Reitz <mreitz@redhat.com>
2019-10-28 12:08:45 +01:00
..
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: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +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
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
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
block: Let format drivers pass @exact
2019-10-28 12:05:30 +01:00
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
block: Evaluate @exact in protocol drivers
2019-10-28 12:05:24 +01:00
file-win32.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
gluster.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
io.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +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
block: Evaluate @exact in protocol drivers
2019-10-28 12:05:24 +01:00
linux-aio.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
Makefile.objs
block: introduce backup-top filter driver
2019-10-10 10:56:18 +02:00
mirror.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
nbd.c
block/nbd: nbd reconnect
2019-10-22 09:22:07 -05:00
nfs.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
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: Pass truncate exact=true where reasonable
2019-10-28 12:08:45 +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
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
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
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: Pass truncate exact=true where reasonable
2019-10-28 12:08:45 +01:00
qcow2.h
qcow2: Add qcow2_check_fix_snapshot_table()
2019-10-28 11:54:01 +01:00
qcow.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
qed-check.c
block/qed: add missed coroutine_fn markers
2019-04-30 15:29:00 +02:00
qed-cluster.c
…
qed-l2-cache.c
…
qed-table.c
block/qed: add missed coroutine_fn markers
2019-04-30 15:29:00 +02:00
qed.c
block: Pass truncate exact=true where reasonable
2019-10-28 12:08:45 +01:00
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: Let format drivers pass @exact
2019-10-28 12:05:30 +01:00
rbd.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
replication.c
block/backup: use backup-top instead of write notifiers
2019-10-10 10:56:18 +02:00
sheepdog.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
snapshot.c
block/snapshot: Restrict set of snapshot nodes
2019-10-04 11:52:40 +02:00
ssh.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
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
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
vhdx-endian.c
Include qemu-common.h exactly where needed
2019-06-12 13:20:20 +02:00
vhdx-log.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
vhdx.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
vhdx.h
block/vhdx: Use IEC binary prefixes for size constants
2019-04-30 15:29:00 +02:00
vmdk.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
vpc.c
block: Add @exact parameter to bdrv_co_truncate()
2019-10-28 12:00:07 +01:00
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