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[Qemu-block] [PATCH v2 0/8] blockdev: Further BlockBackend work
From: |
Max Reitz |
Subject: |
[Qemu-block] [PATCH v2 0/8] blockdev: Further BlockBackend work |
Date: |
Tue, 10 Nov 2015 04:27:41 +0100 |
Overall, this series adds more uses for BlockBackends and makes the code
follow the "reference theory" more closely, in that any BlockBackend
created (through -drive or blockdev-add) has a reference count of 1, and
that reference should be held by the monitor. This is reflected here by
introducing an explicit list of monitor-owned BlockBackends, which in
turn allows us to remove bdrv_states, and, perhaps most importantly,
blk_hide_on_behalf_of_do_drive_del().
Also, it lays groundwork for a nice series that will make bdrv_open()
return a BDS pointer.
This series depends on v8 (or any later version) of my series
"block: Rework bdrv_close_all()" (or any later version). With v7 you
will get a contextual conflict in patch 5 which should be simple to
resolve, however.
(No, v8 is not yet out, what I am referring to as that is basically v7
with a fix for the following:
http://lists.nongnu.org/archive/html/qemu-block/2015-11/msg00330.html)
v2:
- Mostly a rebase, complicated by the fact that the underlying series
have changed a lot in the meantime.
Although I don't suppose anyone will care much, here's that
backport-diff against v1:
Key:
[----] : patches are identical
[####] : number of functional differences between upstream/downstream patch
[down] : patch is downstream-only
The flags [FC] indicate (F)unctional and (C)ontextual differences, respectively
001/8:[----] [-C] 'block: Add blk_name_taken()'
002/8:[----] [-C] 'block: Add blk_next_inserted()'
003/8:[----] [-C] 'block: Add blk_commit_all() and blk_invalidate_cache_all()'
004/8:[0073] [FC] 'block: Use BlockBackend more'
005/8:[0004] [FC] 'blockdev: Add list of monitor-owned BlockBackends'
006/8:[down] 'blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del()'
(renamed from "..._on_behalf_of_do_drive_del()")
007/8:[0213] [FC] 'block: Move some bdrv_*_all() functions to BB'
008/8:[0027] [FC] 'block: Remove bdrv_states'
Max Reitz (8):
block: Add blk_name_taken()
block: Add blk_next_inserted()
block: Add blk_commit_all() and blk_invalidate_cache_all()
block: Use BlockBackend more
blockdev: Add list of monitor-owned BlockBackends
blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del()
block: Move some bdrv_*_all() functions to BB
block: Remove bdrv_states
block.c | 82 ++------------
block/block-backend.c | 245 ++++++++++++++++++++++++++++++++++-------
block/io.c | 88 ---------------
block/qapi.c | 13 ++-
blockdev.c | 29 ++---
cpus.c | 7 +-
include/block/block.h | 5 -
include/block/block_int.h | 4 -
include/sysemu/block-backend.h | 8 +-
migration/block.c | 7 +-
migration/migration.c | 3 +-
migration/savevm.c | 66 ++++++-----
monitor.c | 15 ++-
qemu-char.c | 3 +-
qemu-io.c | 2 +-
qmp.c | 9 +-
stubs/Makefile.objs | 2 +-
stubs/bdrv-commit-all.c | 7 --
stubs/blk-commit-all.c | 7 ++
xen-mapcache.c | 3 +-
20 files changed, 322 insertions(+), 283 deletions(-)
delete mode 100644 stubs/bdrv-commit-all.c
create mode 100644 stubs/blk-commit-all.c
--
2.6.2
- [Qemu-block] [PATCH v2 0/8] blockdev: Further BlockBackend work,
Max Reitz <=
- [Qemu-block] [PATCH v2 1/8] block: Add blk_name_taken(), Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 2/8] block: Add blk_next_inserted(), Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 3/8] block: Add blk_commit_all() and blk_invalidate_cache_all(), Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 5/8] blockdev: Add list of monitor-owned BlockBackends, Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 4/8] block: Use BlockBackend more, Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 6/8] blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del(), Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 8/8] block: Remove bdrv_states, Max Reitz, 2015/11/09
- [Qemu-block] [PATCH v2 7/8] block: Move some bdrv_*_all() functions to BB, Max Reitz, 2015/11/09