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| author | Kevin Wolf <kwolf@redhat.com> | 2017-11-30 17:38:43 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-12-22 15:03:41 +0100 |
| commit | 5fbfabd313b77e1cc7038ae8c4481c4b9f8b650a (patch) | |
| tree | b965fe3930393846d4cb96476441b90455ce36c4 /qemu-nbd.c | |
| parent | 281f327487c9c9b1599f93c589a408bbf4a651b8 (diff) | |
block: Formats don't need CONSISTENT_READ with NO_IO
Commit 1f4ad7d fixed 'qemu-img info' for raw images that are currently
in use as a mirror target. It is not enough for image formats, though,
as these still unconditionally request BLK_PERM_CONSISTENT_READ.
As this permission is geared towards whether the guest-visible data is
consistent, and has no impact on whether the metadata is sane, and
'qemu-img info' does not read guest-visible data (except for the raw
format), it makes sense to not require BLK_PERM_CONSISTENT_READ if there
is not going to be any guest I/O performed, regardless of image format.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qemu-nbd.c')
0 files changed, 0 insertions, 0 deletions