Changes from v1:
Patch 2: Has v1 patch 8 (do not blindly xset bs->read_only) squashed into it
(thanks Stefan)
COW -> "copy-on-read" (Thanks John)
Drop unneeded call in vvfat, and bypass enable_write_target (Stefan)
Patch 5: Rename bdrv_try_... to bdrv_can_set_read_only() (Thanks John, Stefan)
Patch 6: Use "reopen_state->flags" not "reopen_state->bs->open_flags"
(Thanks John)
This series does two things:
1.) Cleans up some of the logic behind setting the read_only flag
for a BDS in the block layer, so that it is done consistently
(and rules are applied consistently), and
2.) Adds .bdrv_reopen_prepare() implementation for RBD, so that block
jobs can be run on backing chains that have rbd protocol nodes.
Jeff Cody (8):
block: add bdrv_set_read_only() helper function
block: do not set BDS read_only if copy_on_read enabled
block: honor BDRV_O_ALLOW_RDWR when clearing bs->read_only
block: code movement
block: introduce bdrv_can_set_read_only()
block: use bdrv_can_set_read_only() during reopen
block/rbd - update variable names to more apt names
block/rbd: Add support for reopen()
block.c | 56 +++++++++++++++++++++++++++++++++++---------
block/bochs.c | 5 +++-
block/cloop.c | 5 +++-
block/dmg.c | 6 ++++-
block/rbd.c | 65 +++++++++++++++++++++++++++++++++++++--------------
block/vvfat.c | 19 +++++++++++----
include/block/block.h | 2 ++
7 files changed, 123 insertions(+), 35 deletions(-)
--
2.9.3
