diff options
| author | John Snow <jsnow@redhat.com> | 2019-03-12 12:05:49 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2019-03-12 12:05:49 -0400 |
| commit | 0064cfefa4e90c11e394befb7abe47602f2f30d7 (patch) | |
| tree | 1bf04a71c89e4d51b487d9b14d5cdcff88651926 | |
| parent | b0f455599d0f092abc11aa3daba693be1453d29a (diff) | |
| download | qemu-0064cfefa4e90c11e394befb7abe47602f2f30d7.zip qemu-0064cfefa4e90c11e394befb7abe47602f2f30d7.tar.gz qemu-0064cfefa4e90c11e394befb7abe47602f2f30d7.tar.bz2 | |
block/dirty-bitmap: add inconsistent status
Even though the status field is deprecated, we still have to support
it for a few more releases. Since this is a very new kind of bitmap
state, it makes sense for it to have its own status field.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190301191545.8728-3-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
| -rw-r--r-- | block/dirty-bitmap.c | 7 | ||||
| -rw-r--r-- | qapi/block-core.json | 7 |
2 files changed, 12 insertions, 2 deletions
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c index 096c1b7..4a2349d 100644 --- a/block/dirty-bitmap.c +++ b/block/dirty-bitmap.c @@ -210,10 +210,15 @@ bool bdrv_dirty_bitmap_enabled(BdrvDirtyBitmap *bitmap) * or it can be Disabled and not recording writes. * (4) Locked: Whether Active or Disabled, the user cannot modify this bitmap * in any way from the monitor. + * (5) Inconsistent: This is a persistent bitmap whose "in use" bit is set, and + * is unusable by QEMU. It can be deleted to remove it from + * the qcow2. */ DirtyBitmapStatus bdrv_dirty_bitmap_status(BdrvDirtyBitmap *bitmap) { - if (bdrv_dirty_bitmap_has_successor(bitmap)) { + if (bdrv_dirty_bitmap_inconsistent(bitmap)) { + return DIRTY_BITMAP_STATUS_INCONSISTENT; + } else if (bdrv_dirty_bitmap_has_successor(bitmap)) { return DIRTY_BITMAP_STATUS_FROZEN; } else if (bdrv_dirty_bitmap_busy(bitmap)) { return DIRTY_BITMAP_STATUS_LOCKED; diff --git a/qapi/block-core.json b/qapi/block-core.json index 1a1c527..bbb9dcc 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -451,10 +451,15 @@ # recording new writes. If the bitmap was @disabled, it is not # recording new writes. (Since 2.12) # +# @inconsistent: This is a persistent dirty bitmap that was marked in-use on +# disk, and is unusable by QEMU. It can only be deleted. +# Please rely on the inconsistent field in @BlockDirtyInfo +# instead, as the status field is deprecated. (Since 4.0) +# # Since: 2.4 ## { 'enum': 'DirtyBitmapStatus', - 'data': ['active', 'disabled', 'frozen', 'locked'] } + 'data': ['active', 'disabled', 'frozen', 'locked', 'inconsistent'] } ## # @BlockDirtyInfo: |