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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2017-06-28 15:05:23 +0300
committerMax Reitz <mreitz@redhat.com>2017-07-11 17:44:59 +0200
commitfd5ae4ccbea17971e4202bbdaba4501627b15f70 (patch)
tree759a36d439ad1eb8c488cbf0af7e2fe79c2d9275 /blockdev.c
parentda0eb242ad06b9e33300da7733a582bd61436fd2 (diff)
qmp: add persistent flag to block-dirty-bitmap-add
Add optional 'persistent' flag to qmp command block-dirty-bitmap-add. Default is false. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Message-id: 20170628120530.31251-24-vsementsov@virtuozzo.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/blockdev.c b/blockdev.c
index edeb36bd3b..2ef731b1f7 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1983,6 +1983,7 @@ static void block_dirty_bitmap_add_prepare(BlkActionState *common,
/* AIO context taken and released within qmp_block_dirty_bitmap_add */
qmp_block_dirty_bitmap_add(action->node, action->name,
action->has_granularity, action->granularity,
+ action->has_persistent, action->persistent,
&local_err);
if (!local_err) {
@@ -2708,9 +2709,11 @@ out:
void qmp_block_dirty_bitmap_add(const char *node, const char *name,
bool has_granularity, uint32_t granularity,
+ bool has_persistent, bool persistent,
Error **errp)
{
BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
if (!name || name[0] == '\0') {
error_setg(errp, "Bitmap name cannot be empty");
@@ -2733,7 +2736,20 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
granularity = bdrv_get_default_bitmap_granularity(bs);
}
- bdrv_create_dirty_bitmap(bs, granularity, name, errp);
+ if (!has_persistent) {
+ persistent = false;
+ }
+
+ if (persistent &&
+ !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
+ {
+ return;
+ }
+
+ bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
+ if (bitmap != NULL) {
+ bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
+ }
}
void qmp_block_dirty_bitmap_remove(const char *node, const char *name,