diff options
| author |   Kevin Wolf <kwolf@redhat.com> | 2010-08-30 18:42:15 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2010-08-30 18:42:15 +0200 |
| commit | 2c1064ed2dd30494e4a5484f4b1a24e9dc24c2b8 (patch) | |
| tree | 70c4d793620121f076382aaad462ea98438b6faf | |
| parent | virtio-blk: Fix migration of queued requests (diff) | |
| download | qemu-kvm-2c1064ed2dd30494e4a5484f4b1a24e9dc24c2b8.tar.gz qemu-kvm-2c1064ed2dd30494e4a5484f4b1a24e9dc24c2b8.tar.bz2 qemu-kvm-2c1064ed2dd30494e4a5484f4b1a24e9dc24c2b8.zip | |
block: Fix image re-open in bdrv_commit
Arguably we should re-open the backing file with the backing file format and
not with the format of the snapshot image.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit ee1811965fd15e0b41f8d508b951a8ab826ae3a7)
Conflicts:
block.c
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| -rw-r--r-- | block.c | 13 |
1 files changed, 9 insertions, 4 deletions
@@ -743,6 +743,7 @@ int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res) int bdrv_commit(BlockDriverState *bs) { BlockDriver *drv = bs->drv; + BlockDriver *backing_drv; int64_t i, total_sectors; int n, j, ro, open_flags; int ret = 0, rw_ret = 0; @@ -760,7 +761,8 @@ int bdrv_commit(BlockDriverState *bs) if (bs->backing_hd->keep_read_only) { return -EACCES; } - + + backing_drv = bs->backing_hd->drv; ro = bs->backing_hd->read_only; strncpy(filename, bs->backing_hd->filename, sizeof(filename)); open_flags = bs->backing_hd->open_flags; @@ -770,12 +772,14 @@ int bdrv_commit(BlockDriverState *bs) bdrv_delete(bs->backing_hd); bs->backing_hd = NULL; bs_rw = bdrv_new(""); - rw_ret = bdrv_open(bs_rw, filename, open_flags | BDRV_O_RDWR, drv); + rw_ret = bdrv_open(bs_rw, filename, open_flags | BDRV_O_RDWR, + backing_drv); if (rw_ret < 0) { bdrv_delete(bs_rw); /* try to re-open read-only */ bs_ro = bdrv_new(""); - ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, drv); + ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, + backing_drv); if (ret < 0) { bdrv_delete(bs_ro); /* drive not functional anymore */ @@ -827,7 +831,8 @@ ro_cleanup: bdrv_delete(bs->backing_hd); bs->backing_hd = NULL; bs_ro = bdrv_new(""); - ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, drv); + ret = bdrv_open(bs_ro, filename, open_flags & ~BDRV_O_RDWR, + backing_drv); if (ret < 0) { bdrv_delete(bs_ro); /* drive not functional anymore */ |