Changes, v3->v4
Patch 1/3: Commit message typo (Eric)
Patch 2/3: Removed dead code (Benoît)
Patch 3/3: None
Changes, v2->v3:
Patch 1/3: None
Patch 2/3: Set errp for both bdrv_getlength() failure cases (Fam)
Remove "." from error message (Eric Blake)
Patch 3/3: Removed spurious double space (Eric Blake)
Changes, v1->v2:
Patch 1/3: Added error check for bdrv_getlength() return (Stefan)
Patch 2/3: Restore flags in commit_active_start() on failures after
the bdrv_reopen() (Fam)
Patch 3/3: New patch, adds documentation clarification for the behavior
of both offline commit, and live block commit, as it pertains
to image truncation. (Stefan)
If a snapshot is larger than a backing file, then the offline bdrv_commit and
the live active layer commit will fail with an i/o error (usually). A live
commit of a non-active layer will complete successfully, as it runs
bdrv_truncate() on the backing image to resize it to the larger size.
For both bdrv_commit() and commit_active_start(), this series will resize
the underlying base image if needed. If the resize fails, an error will
be returned.
Jeff Cody (3):
block: resize backing file image during offline commit, if necessary
block: resize backing image during active layer commit, if needed
block: update block commit documentation regarding image truncation
block.c | 23 ++++++++++++++++++++---
block/mirror.c | 38 ++++++++++++++++++++++++++++++++++++++
hmp-commands.hx | 5 +++++
qapi-schema.json | 7 +++++++
qemu-img.texi | 7 ++++++-
qmp-commands.hx | 39 +++++++++++++++++++++++++++++++++++++++
6 files changed, 115 insertions(+), 4 deletions(-)
--
1.8.3.1
