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Eric Blake aff46b4bf5 mirror: Reduce I/O when destination is detect-zeroes:unmap 
If we are going to punch holes in the mirror destination even for the
portions where the source image is unallocated, it is nicer to treat
the entire image as dirty and punch as we go, rather than pre-zeroing
the entire image just to re-do I/O to the allocated portions of the
image.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-ID: <20250513220142.535200-2-eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-05-14 21:27:04 -05:00
..
export block/export: Add option to allow export of inactive nodes 2025-02-06 14:46:40 +01:00
monitor nbd/server: Allow users to adjust handshake limit in QMP 2025-02-11 13:45:47 -06:00
accounting.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
aio_task.c block: Remove unused aio_task_pool_empty 2024-09-30 10:53:18 +03:00
amend.c
backup.c blockdev-backup: Add error handling option for copy-before-write jobs 2025-05-12 18:19:31 +03:00
blkdebug.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
blkio.c include/system: Move exec/memory.h to system/memory.h 2025-04-23 14:08:21 -07:00
blklogwrites.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
blkreplay.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
blkverify.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
block-backend.c block: Remove unused blk_op_is_blocked() 2025-03-11 15:49:14 +01:00
block-copy.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
block-gen.h
block-ram-registrar.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
bochs.c
cloop.c
commit.c block: allow commit to unmap zero blocks 2025-05-01 12:12:19 +03:00
copy-before-write.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
copy-before-write.h blockdev-backup: Add error handling option for copy-before-write jobs 2025-05-12 18:19:31 +03:00
copy-on-read.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
copy-on-read.h
coroutines.h block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
create.c qemu/compiler: Absorb 'clang-tsa.h' 2025-03-06 14:21:25 +01:00
crypto.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
crypto.h
curl.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
dirty-bitmap.c
dmg-bz2.c
dmg-lzfse.c
dmg.c
dmg.h
file-posix.c file-posix, gluster: Handle zero block status hint better 2025-05-14 15:49:27 -05:00
file-win32.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
filter-compress.c
gluster.c file-posix, gluster: Handle zero block status hint better 2025-05-14 15:49:27 -05:00
graph-lock.c
io.c block: Add new bdrv_co_is_all_zeroes() function 2025-05-14 16:08:23 -05:00
io_uring.c file-posix: Support FUA writes 2025-03-13 17:44:55 +01:00
iscsi-opts.c
iscsi.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
linux-aio.c file-posix: Support FUA writes 2025-03-13 17:44:55 +01:00
meson.build include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
mirror.c mirror: Reduce I/O when destination is detect-zeroes:unmap 2025-05-14 21:27:04 -05:00
nbd.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
nfs.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
null.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
nvme.c block/nvme: Use host PCI MMIO API 2025-05-08 10:21:10 -04:00
parallels-ext.c qapi/crypto: Rename QCryptoHashAlgorithm to *Algo, and drop prefix 2024-09-10 14:02:16 +02:00
parallels.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
parallels.h
preallocate.c
progress_meter.c
qapi-system.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
qapi.c Block layer patches 2025-02-10 13:25:36 -05:00
qcow.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
qcow2-bitmap.c
qcow2-cache.c
qcow2-cluster.c
qcow2-refcount.c
qcow2-snapshot.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
qcow2-threads.c
qcow2.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
qcow2.h
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
qed.h
quorum.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
raw-format.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
rbd.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
replication.c blockdev-backup: Add error handling option for copy-before-write jobs 2025-05-12 18:19:31 +03:00
reqlist.c block/reqlist: allow adding overlapping requests 2024-09-30 10:53:18 +03:00
snapshot-access.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
snapshot.c block: Zero block driver state before reopening 2025-03-11 15:49:14 +01:00
ssh.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
stream.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
throttle-groups.c qom: Make InterfaceInfo[] uses const 2025-04-25 17:00:41 +02:00
throttle.c
trace-events
trace.h
vdi.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
vhdx-endian.c
vhdx-log.c
vhdx.c qapi: Move include/qapi/qmp/ to include/qobject/ 2025-02-10 15:33:16 +01:00
vhdx.h
vmdk.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
vpc.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
vvfat.c block: Expand block status mode from bool to flags 2025-05-14 15:33:34 -05:00
win32-aio.c
write-threshold.c