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[Qemu-block] [PATCH 00/17] make bdrv_is_allocated[_above] byte-based
From: |
Eric Blake |
Subject: |
[Qemu-block] [PATCH 00/17] make bdrv_is_allocated[_above] byte-based |
Date: |
Tue, 11 Apr 2017 17:29:28 -0500 |
There are patches floating around to add NBD_CMD_BLOCK_STATUS,
but NBD wants to report status on byte granularity (even if the
reporting will probably be naturally aligned to sectors or even
much higher levels). I've therefore started the task of
converting our block status code to report at a byte granularity
rather than sectors.
This is part one of that conversion: bdrv_is_allocated().
Other parts (still to be written) include tracking dirty bitmaps
by bytes (it's still one bit per granularity, but now we won't
be double-scaling from bytes to sectors to granularity), then
replacing bdrv_get_block_status() with a byte based callback
in all the drivers.
Available as a tag at:
git fetch git://repo.or.cz/qemu/ericb.git nbd-byte-allocated-v1
It requires v9 or later of my prior work on blkdebug:
https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg01723.html
which in turn requires Max's block-next tree:
https://lists.gnu.org/archive/html/qemu-devel/2017-04/msg01298.html
Eric Blake (17):
blockjob: Track job ratelimits via bytes, not sectors
trace: Show blockjob actions via bytes, not sectors
stream: Switch stream_populate() to byte-based
stream: Switch stream_run() to byte-based
commit: Switch commit_populate() to byte-based
commit: Switch commit_run() to byte-based
mirror: Switch MirrorBlockJob to byte-based
mirror: Switch mirror_do_zero_or_discard() to byte-based
mirror: Switch mirror_cow_align() to byte-based
mirror: Switch mirror_do_read() to byte-based
mirror: Switch mirror_iteration() to byte-based
backup: Switch BackupBlockJob to byte-based
backup: Switch block_backup.h to byte-based
backup: Switch backup_do_cow() to byte-based
backup: Switch backup_run() to byte-based
block: Make bdrv_is_allocated() byte-based
block: Make bdrv_is_allocated_above() byte-based
include/block/block.h | 6 +-
include/block/block_backup.h | 11 +-
include/qemu/ratelimit.h | 3 +-
block/backup.c | 126 ++++++++----------
block/commit.c | 54 ++++----
block/io.c | 59 +++++----
block/mirror.c | 300 ++++++++++++++++++++++---------------------
block/replication.c | 29 +++--
block/stream.c | 35 +++--
block/vvfat.c | 34 +++--
migration/block.c | 9 +-
qemu-img.c | 15 ++-
qemu-io-cmds.c | 57 ++++----
block/trace-events | 14 +-
14 files changed, 381 insertions(+), 371 deletions(-)
--
2.9.3