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5efdf53227
qemu/block
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Kevin Wolf 5efdf53227 qcow2: Fix write_zeroes with partially allocated backing file cluster 
In order to correctly check whether a given cluster is read as zero, we
don't only need to check whether bdrv_get_block_status_above() sets
BDRV_BLOCK_ZERO, but also if all sectors for the whole cluster have the
same status.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
2016-05-19 16:45:31 +02:00
..
accounting.c block: Clean up includes 2016-01-20 13:36:23 +01:00
archipelago.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
backup.c blockjob: Don't touch BDS iostatus 2016-05-19 16:45:31 +02:00
blkdebug.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
blkreplay.c replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
blkverify.c block: Propagate AioContext change to all children 2016-05-19 16:45:31 +02:00
block-backend.c block: Remove BlockDriverState.blk 2016-05-19 16:45:31 +02:00
bochs.c bochs: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
cloop.c cloop: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
commit.c blockjob: Don't touch BDS iostatus 2016-05-19 16:45:31 +02:00
crypto.c Block layer patches 2016-05-12 16:33:40 +01:00
curl.c block: always compile-check debug prints 2016-05-12 15:22:08 +02:00
dirty-bitmap.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
dmg.c dmg: Implement .bdrv_co_preadv() interface 2016-05-12 15:22:08 +02:00
gluster.c block/gluster: prevent data loss after i/o error 2016-04-19 12:24:59 -04:00
io.c block: Avoid bs->blk in bdrv_next() 2016-05-19 16:45:31 +02:00
iscsi.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
linux-aio.c linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
Makefile.objs replay: introduce block devices record/replay 2016-03-30 12:15:57 +02:00
mirror.c block: Remove BlockDriverState.blk 2016-05-19 16:45:31 +02:00
nbd-client.c nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nbd-client.h nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nbd.c nbd: Simplify client FUA handling 2016-05-12 15:22:09 +02:00
nfs.c block/nfs: add missing #include "qemu/cutils.h" 2016-03-30 16:50:39 -04:00
null.c block/null-{co,aio}: Implement get_block_status() 2016-03-30 12:16:04 +02:00
parallels.c block: Switch blk_*write_zeroes() to byte interface 2016-05-12 15:22:08 +02:00
qapi.c block: Don't return throttling info in query-named-block-nodes 2016-05-19 16:45:31 +02:00
qcow2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qcow2-cluster.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-refcount.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
qcow2-snapshot.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
qcow2.c qcow2: Fix write_zeroes with partially allocated backing file cluster 2016-05-19 16:45:31 +02:00
qcow2.h qcow2: Add function for refcount order amendment 2015-12-18 14:34:43 +01:00
qcow.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
qed-check.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-cluster.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-gencb.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-l2-cache.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed-table.c block: Clean up includes 2016-01-20 13:36:23 +01:00
qed.c block: Drop superfluous invalidating bs->file from drivers 2016-05-12 15:22:09 +02:00
qed.h util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
quorum.c block: Propagate AioContext change to all children 2016-05-19 16:45:31 +02:00
raw_bsd.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
raw-aio.h linux-aio: make it more type safe 2016-05-12 15:22:07 +02:00
raw-posix.c block: Honor BDRV_REQ_FUA during write_zeroes 2016-05-12 15:22:09 +02:00
raw-win32.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
rbd.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +01:00
sheepdog.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
snapshot.c block: Avoid bs->blk in bdrv_next() 2016-05-19 16:45:31 +02:00
ssh.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
stream.c blockjob: Don't touch BDS iostatus 2016-05-19 16:45:31 +02:00
throttle-groups.c block: Move I/O throttling configuration functions to BlockBackend 2016-05-19 16:45:30 +02:00
vdi.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vhdx-endian.c block: Clean up includes 2016-01-20 13:36:23 +01:00
vhdx-log.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
vhdx.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
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: Propagate AioContext change to all children 2016-05-19 16:45:31 +02:00
vpc.c block: Allow BDRV_REQ_FUA through blk_pwrite() 2016-05-12 15:22:08 +02:00
vvfat.c vvfat: Implement .bdrv_co_preadv/pwritev interfaces 2016-05-12 15:22:08 +02:00
win32-aio.c block: Clean up includes 2016-01-20 13:36:23 +01:00
write-threshold.c block: Clean up includes 2016-01-20 13:36:23 +01:00