| commit | 7cddd3728e964164e99c59e5c9443508d9ee0161 | |
| author | Kevin Wolf <kwolf@redhat.com> | |
| Thu, 20 Nov 2014 15:27:11 +0000 (20 16:27 +0100) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Wed, 10 Dec 2014 09:31:12 +0000 (10 10:31 +0100) | ||
| tree | fec4adc1f623e1b87851c59a819af623b2342664 | treesnapshot (tar.gz zip) |
| parent | c6684249fd35f7e692bcf3039d2fc4b13dd32308 | commitdiff |
block: Read only one sector for format probing
The only image format driver that even potentially accesses anything
after 512 bytes in its bdrv_probe() implementation is VMDK, which reads
a plain-text descriptor file. In practice, the field it's looking for
seems to come first and will be well within the first 512 bytes, too.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1416497234-29880-7-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The only image format driver that even potentially accesses anything
after 512 bytes in its bdrv_probe() implementation is VMDK, which reads
a plain-text descriptor file. In practice, the field it's looking for
seems to come first and will be well within the first 512 bytes, too.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 1416497234-29880-7-git-send-email-kwolf@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| block.c | diffblobblamehistory | |
| include/block/block_int.h | diffblobblamehistory |