qemu-e2k/block
Alberto Garcia 580384d637 qcow2: Return the original error code in qcow2_co_pwrite_zeroes()
This function checks the current status of a (sub)cluster in order to
see if an unaligned 'write zeroes' request can be done efficiently by
simply updating the L2 metadata and without having to write actual
zeroes to disk.

If the situation does not allow using the fast path then the function
returns -ENOTSUP and the caller falls back to writing zeroes.

If can happen however that the aforementioned check returns an actual
error code so in this case we should pass it to the caller.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200909123739.719-1-berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-09-15 11:05:13 +02:00
..
monitor commit: Deal with filters 2020-09-07 12:31:31 +02:00
accounting.c
aio_task.c
amend.c block/amend: Check whether the node exists 2020-07-27 12:37:25 +02:00
backup-top.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
backup-top.h
backup.c backup: Deal with filters 2020-09-07 12:31:31 +02:00
blkdebug.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
blklogwrites.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
blkreplay.c block: Use bdrv_default_perms() 2020-05-18 19:05:25 +02:00
blkverify.c error: Eliminate error_propagate() with Coccinelle, part 2 2020-07-10 15:18:08 +02:00
block-backend.c commit: Deal with filters 2020-09-07 12:31:31 +02:00
block-copy.c block-copy: Use CAF to find sync=top base 2020-09-07 12:31:31 +02:00
bochs.c block: Use bdrv_default_perms() 2020-05-18 19:05:25 +02:00
cloop.c block: Use bdrv_default_perms() 2020-05-18 19:05:25 +02:00
commit.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
copy-on-read.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
create.c
crypto.c block/crypto: disallow write sharing by default 2020-07-21 10:49:02 +02:00
crypto.h block/crypto: implement the encryption key management 2020-07-06 08:49:28 +02:00
curl.c error: Eliminate error_propagate() with Coccinelle, part 1 2020-07-10 15:18:08 +02:00
dirty-bitmap.c block/dirty-bitmap: add bdrv_has_named_bitmaps helper 2020-05-28 13:15:22 -05:00
dmg-bz2.c
dmg-lzfse.c
dmg.c block: Use bdrv_default_perms() 2020-05-18 19:05:25 +02:00
dmg.h
file-posix.c file-posix: Handle EINVAL fallocate return value 2020-07-21 16:28:57 +02:00
file-win32.c file-win32: Fix "locking" option 2020-09-10 11:11:12 +02:00
filter-compress.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
gluster.c error: Reduce unnecessary error propagation 2020-07-10 15:18:08 +02:00
io_uring.c io_uring: use io_uring_cq_ready() to check for ready cqes 2020-06-05 09:54:48 +01:00
io.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
iscsi-opts.c
iscsi.c iscsi: return -EIO when sense fields are meaningless 2020-07-10 18:02:23 -04:00
linux-aio.c misc: Replace zero-length arrays with flexible array member (automatic) 2020-03-16 22:07:42 +01:00
meson.build block: always link with zlib 2020-09-01 01:51:51 -04:00
mirror.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
nbd.c block/nbd: use non-blocking connect: fix vm hang on connect() 2020-09-02 16:47:23 -05:00
nfs.c qapi: Smooth another visitor error checking pattern 2020-07-10 15:18:08 +02:00
null.c block/null: Implement bdrv_get_allocated_file_size 2020-09-07 12:31:31 +02:00
nvme.c block/nvme: Pair doorbell registers 2020-09-10 11:11:13 +02:00
parallels.c error: Avoid error_propagate() after migrate_add_blocker() 2020-07-10 15:18:08 +02:00
parallels.h
qapi-sysemu.c block: Move system emulator QMP commands to block/qapi-sysemu.c 2020-03-06 17:15:38 +01:00
qapi.c block: Leave BDS.backing_{file,format} constant 2020-09-07 12:31:31 +02:00
qcow2-bitmap.c qcow2: Use macros for the L1, refcount and bitmap table entry sizes 2020-09-15 11:05:12 +02:00
qcow2-cache.c core: replace getpagesize() with qemu_real_host_page_size 2019-10-26 15:38:06 +02:00
qcow2-cluster.c qcow2: Make qcow2_free_any_clusters() free only one cluster 2020-09-15 11:05:13 +02:00
qcow2-refcount.c qcow2: Make qcow2_free_any_clusters() free only one cluster 2020-09-15 11:05:13 +02:00
qcow2-snapshot.c qcow2: Use macros for the L1, refcount and bitmap table entry sizes 2020-09-15 11:05:12 +02:00
qcow2-threads.c qcow2: add zstd cluster compression 2020-05-13 14:20:31 +02:00
qcow2.c qcow2: Return the original error code in qcow2_co_pwrite_zeroes() 2020-09-15 11:05:13 +02:00
qcow2.h qcow2: Make qcow2_free_any_clusters() free only one cluster 2020-09-15 11:05:13 +02:00
qcow.c qcow: Tolerate backing_fmt= 2020-07-14 15:18:59 +02:00
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c qapi: Smooth another visitor error checking pattern 2020-07-10 15:18:08 +02:00
qed.h qed: Simplify backing reads 2020-07-06 10:34:14 +02:00
quorum.c block/quorum.c: stable children names 2020-09-15 11:05:12 +02:00
raw-format.c error: Eliminate error_propagate() with Coccinelle, part 2 2020-07-10 15:18:08 +02:00
rbd.c qapi: Smooth another visitor error checking pattern 2020-07-10 15:18:08 +02:00
replication.c error: Reduce unnecessary error propagation 2020-07-10 15:18:08 +02:00
sheepdog.c sheepdog: Add trivial backing_fmt support 2020-07-14 15:18:59 +02:00
snapshot.c block/snapshot: Fix fallback 2020-09-07 12:31:31 +02:00
ssh.c qapi: Smooth another visitor error checking pattern 2020-07-10 15:18:08 +02:00
stream.c stream: Deal with filters 2020-09-07 12:31:31 +02:00
throttle-groups.c throttle-groups: Move ThrottleGroup typedef to header 2020-08-27 14:04:54 -04:00
throttle.c block: Inline bdrv_co_block_status_from_*() 2020-09-07 12:31:31 +02:00
trace-events trace-events: Fix attribution of trace points to source 2020-09-09 17:17:58 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vdi.c error: Avoid error_propagate() after migrate_add_blocker() 2020-07-10 15:18:08 +02:00
vhdx-endian.c
vhdx-log.c block: Add flags to bdrv(_co)_truncate() 2020-04-30 17:51:07 +02:00
vhdx.c block/vhdx: Support vhdx image only with 512 bytes logical sector size 2020-09-15 11:05:13 +02:00
vhdx.h
vmdk.c vmdk: Drop vmdk_co_flush() 2020-09-07 12:31:31 +02:00
vpc.c error: Avoid error_propagate() after migrate_add_blocker() 2020-07-10 15:18:08 +02:00
vvfat.c error: Avoid error_propagate() after migrate_add_blocker() 2020-07-10 15:18:08 +02:00
win32-aio.c
write-threshold.c