Fix : Enable qemu-img QED image commit support.

Message ID
State New
Headers show

Commit Message

Onkar N Mahajan Jan. 4, 2013, 10:02 a.m.
Running qemu-img commit on QED image gives this message even if the
image is never committed. This patch fixes this. Do we need to do any
L1, L2 table cleanup here ? I see that cleanup code is commented out in
the case of qcow2 (qcow2_make_empty).

before patching - 
# qemu-img commit -f qed ss.qed 
qemu-img: Image is already committed

even before committing the image.

after patching -
# qemu-img commit -f qed ss.qed 
Image committed.

and image is actually successfully committed.

Signed-off-by: Onkar N Mahajan/India/IBM

 block/qed.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

 static BDRVQEDState *acb_to_s(QEDAIOCB *acb)


Anthony Liguori Jan. 4, 2013, 8:21 p.m. | #1

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Below is the output from git-am:

    Applying: Fix : Enable qemu-img QED image commit support.
    fatal: corrupt patch at line 10
    Repository lacks necessary blobs to fall back on 3-way merge.
    Cannot fall back to three-way merge.
    Patch failed at 0001 Fix : Enable qemu-img QED image commit support.
    The copy of the patch that failed is found in:
    When you have resolved this problem run "git am --resolved".
    If you would prefer to skip this patch, instead run "git am --skip".
    To restore the original branch and stop patching run "git am --abort".


diff --git a/block/qed.c b/block/qed.c
index 6c182ca..32f1d53 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -695,7 +695,7 @@  static int coroutine_fn
bdrv_qed_co_is_allocated(BlockDriverState *bs,
 static int bdrv_qed_make_empty(BlockDriverState *bs)
-    return -ENOTSUP;
+    return 0;