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(parent: 4823cde) | patch
vmdk: Don't update L2 table for zero write on zero cluster
authorKevin Wolf <kwolf@redhat.com>
Thu, 30 Apr 2020 13:30:05 +0000 (15:30 +0200)
committerKevin Wolf <kwolf@redhat.com>
Fri, 8 May 2020 11:26:35 +0000 (13:26 +0200)
commit78cae78dbcf94a151203ab5c6e418d9d9094a59e
tree712dc2a5ef3961a1dc75f74a387cc4190efecea9tree | snapshot
parent4823cde58eb507fcdcc0225b087343439a6cb43ccommit | diff
vmdk: Don't update L2 table for zero write on zero cluster

If a cluster is already zeroed, we don't have to call vmdk_L2update(),
which is rather slow because it flushes the image file.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200430133007.170335-5-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/vmdk.c diff | blob | history
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