| commit | 3b65081638c68be1c6ed08635c8acd99f32320ac | |
| author | Kevin Wolf <kwolf@redhat.com> | |
| Fri, 22 Nov 2019 15:57:48 +0000 (22 16:57 +0100) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Wed, 18 Dec 2019 10:21:16 +0000 (18 11:21 +0100) | ||
| tree | a966d54d2b18e722ec71b94dbe9619a33ae6f063 | treesnapshot (tar.gz zip) |
| parent | 1ef7d9d368eb76d64e86e4d1251eb8e53881ff26 | commitdiff |
qcow2: Declare BDRV_REQ_NO_FALLBACK supported
In the common case, qcow2_co_pwrite_zeroes() already only modifies
metadata case, so we're fine with or without BDRV_REQ_NO_FALLBACK set.
The only exception is when using an external data file, where the
request is passed down to the block driver of the external data file. We
are forwarding the BDRV_REQ_NO_FALLBACK flag there, though, so this is
fine, too.
Declare the flag supported therefore.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
In the common case, qcow2_co_pwrite_zeroes() already only modifies
metadata case, so we're fine with or without BDRV_REQ_NO_FALLBACK set.
The only exception is when using an external data file, where the
request is passed down to the block driver of the external data file. We
are forwarding the BDRV_REQ_NO_FALLBACK flag there, though, so this is
fine, too.
Declare the flag supported therefore.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
| block/qcow2.c | diffblobblamehistory |