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cow: convert to .bdrv_co_is_allocated()
authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Mon, 14 Nov 2011 12:44:24 +0000 (12:44 +0000)
committerKevin Wolf <kwolf@redhat.com>
Mon, 5 Dec 2011 13:51:37 +0000 (14:51 +0100)
commit81145834d39897c6f153ac26a4077f90f269c5fc
tree9e04e7b769c731f3af263a22bf740157a63f102ftree
parente850b35a1f41304c31b971bde95f0534f2afd791commit | diff
cow: convert to .bdrv_co_is_allocated()

The cow block driver does not keep internal state for cluster lookups.
This means it is safe to perform cluster lookups in coroutine context
without risk of race conditions that corrupt internal state.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
block/cow.c diff | blob | blame | history
Qemu copy for testing