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dirty-bitmap: switch assert-fails to errors in bdrv_merge_dirty_bitmap

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Move checks from qmp_x_block_dirty_bitmap_merge() to
bdrv_merge_dirty_bitmap(), to share them with dirty bitmap merge
transaction action in future commit.

Note: for now, only qmp_x_block_dirty_bitmap_merge() calls
bdrv_merge_dirty_bitmap().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2018-10-29 16:23:14 -04:00 • committed by John Snow
parent 945c1ee0cb
commit 06bf50068a
2 changed files with 13 additions and 12 deletions
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15
block/dirty-bitmap.c
View file

@ -798,12 +798,23 @@ void bdrv_merge_dirty_bitmap(BdrvDirtyBitmap *dest, const BdrvDirtyBitmap *src,
qemu_mutex_lock(dest->mutex);
assert(bdrv_dirty_bitmap_enabled(dest));
assert(!bdrv_dirty_bitmap_readonly(dest));
if (bdrv_dirty_bitmap_frozen(dest)) {
error_setg(errp, "Bitmap '%s' is frozen and cannot be modified",
dest->name);
goto out;
}
if (bdrv_dirty_bitmap_readonly(dest)) {
error_setg(errp, "Bitmap '%s' is readonly and cannot be modified",
dest->name);
goto out;
}
if (!hbitmap_merge(dest->bitmap, src->bitmap)) {
error_setg(errp, "Bitmaps are incompatible and can't be merged");
goto out;
}
out:
qemu_mutex_unlock(dest->mutex);
}