| commit | fec00559e71c94749deac176f6c4bebf81fbe7b8 | |
| author | Eric Blake <eblake@redhat.com> | |
| Tue, 28 Apr 2020 20:29:01 +0000 (28 15:29 -0500) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Fri, 8 May 2020 11:26:35 +0000 (8 13:26 +0200) | ||
| tree | 4fdc555d7dc44da42b85553038ae11ca220cdb91 | treesnapshot (tar.gz zip) |
| parent | 2f98910d5b89733b1a5df06c6d2a7056da32a7b7 | commitdiff |
sheepdog: Support BDRV_REQ_ZERO_WRITE for truncate
Our .bdrv_has_zero_init_truncate always returns 1 because sheepdog
always 0-fills; we can use that same knowledge to implement
BDRV_REQ_ZERO_WRITE by ignoring it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200428202905.770727-6-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Our .bdrv_has_zero_init_truncate always returns 1 because sheepdog
always 0-fills; we can use that same knowledge to implement
BDRV_REQ_ZERO_WRITE by ignoring it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200428202905.770727-6-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| block/sheepdog.c | diffblobblamehistory |