| commit | fd9fcd37a8645efe322956d94f76e90135522a16 | |
| author | Fam Zheng <famz@redhat.com> | |
| Fri, 1 Jun 2018 09:26:42 +0000 (1 17:26 +0800) | ||
| committer | Stefan Hajnoczi <stefanha@redhat.com> | |
| Fri, 1 Jun 2018 13:41:48 +0000 (1 14:41 +0100) | ||
| tree | 4b5244acff71bc2924a9653dfb04f240722f5083 | treesnapshot (tar.gz zip) |
| parent | 72d219e2f916adeec9845473d239571a267f3314 | commitdiff |
qcow2: Implement copy offloading
The two callbacks are implemented quite similarly to the read/write
functions: bdrv_co_copy_range_from maps for read and calls into bs->file
or bs->backing depending on the allocation status; bdrv_co_copy_range_to
maps for write and calls into bs->file.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20180601092648.24614-5-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The two callbacks are implemented quite similarly to the read/write
functions: bdrv_co_copy_range_from maps for read and calls into bs->file
or bs->backing depending on the allocation status; bdrv_co_copy_range_to
maps for write and calls into bs->file.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 20180601092648.24614-5-famz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
| block/qcow2.c | diffblobblamehistory |