diff mbox

[v2,1/3] block: Invalidate all children

Message ID 1462934735-12047-2-git-send-email-famz@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Fam Zheng May 11, 2016, 2:45 a.m. UTC 
Currently we only recurse to bs->file, which will miss the children in quorum
and VMDK.

Recurse into the whole subtree to avoid that.

Signed-off-by: Fam Zheng <famz@redhat.com>
---
 block.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

Comments

Alberto Garcia May 11, 2016, 10:37 a.m. UTC | #1 
On Wed 11 May 2016 04:45:33 AM CEST, Fam Zheng wrote:
> Currently we only recurse to bs->file, which will miss the children in quorum
> and VMDK.
>
> Recurse into the whole subtree to avoid that.
>
> Signed-off-by: Fam Zheng <famz@redhat.com>

Reviewed-by: Alberto Garcia <berto@igalia.com>

Berto
diff mbox

Patch

diff --git a/block.c b/block.c
index d4939b4..fa8b38f 100644
--- a/block.c
+++ b/block.c
@@ -3201,6 +3201,7 @@  void bdrv_init_with_whitelist(void)
 
 void bdrv_invalidate_cache(BlockDriverState *bs, Error **errp)
 {
+    BdrvChild *child;
     Error *local_err = NULL;
     int ret;
 
@@ -3215,13 +3216,20 @@  void bdrv_invalidate_cache(BlockDriverState *bs, Error **errp)
 
     if (bs->drv->bdrv_invalidate_cache) {
         bs->drv->bdrv_invalidate_cache(bs, &local_err);
-    } else if (bs->file) {
-        bdrv_invalidate_cache(bs->file->bs, &local_err);
+        if (local_err) {
+            bs->open_flags |= BDRV_O_INACTIVE;
+            error_propagate(errp, local_err);
+            return;
+        }
     }
-    if (local_err) {
-        bs->open_flags |= BDRV_O_INACTIVE;
-        error_propagate(errp, local_err);
-        return;
+
+    QLIST_FOREACH(child, &bs->children, next) {
+        bdrv_invalidate_cache(child->bs, &local_err);
+        if (local_err) {
+            bs->open_flags |= BDRV_O_INACTIVE;
+            error_propagate(errp, local_err);
+            return;
+        }
     }
 
     ret = refresh_total_sectors(bs, bs->total_sectors);