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(parent: 81a204e) | patch
block: fix aio_flush segfaults for read-only protocols (e.g. curl)
authorAvi Kivity <avi@redhat.com>
Sun, 16 May 2010 11:59:57 +0000 (14:59 +0300)
committerKevin Wolf <kwolf@redhat.com>
Fri, 21 May 2010 09:49:18 +0000 (11:49 +0200)
commitc53a7285b4377e91f30b7742c7e12c16d6bf86f0
treebf012c66eddd97a04dbe4d6795cd10a1ccbba4cctree | snapshot
parent81a204e44356a4e147ee4bcfded3d25793c5a2adcommit | diff
block: fix aio_flush segfaults for read-only protocols (e.g. curl)

Not all block format drivers expose an io_flush method (reasonable for
read-only protocols), so calling io_flush there will immediately segfault.

Fix by checking for the method's existence before calling it.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
aio.c diff | blob | history
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