| commit | 5416a11eb55d46c376dde97c429b89e9b4e1a94f | |
| author | Fam Zheng <famz@redhat.com> | |
| Tue, 10 Jul 2018 06:31:23 +0000 (10 14:31 +0800) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Tue, 10 Jul 2018 14:46:22 +0000 (10 16:46 +0200) | ||
| tree | c7f58ce65327100e4acf7527c210f88b9e2e51b1 | treesnapshot (tar.gz zip) |
| parent | 0eb1e891126f0cde52e88384696ad67076bdc341 | commitdiff |
block: Fix bdrv_co_truncate overlap check
If we are growing the image and potentially using preallocation for the
new area, we need to make sure that no write requests are made to the
"preallocated" area which is [@old_size, @offset), not
[@offset, offset * 2 - @old_size).
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
If we are growing the image and potentially using preallocation for the
new area, we need to make sure that no write requests are made to the
"preallocated" area which is [@old_size, @offset), not
[@offset, offset * 2 - @old_size).
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| block/io.c | diffblobblamehistory |