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authorStefan Hajnoczi <stefanha@linux.vnet.ibm.com>2011-11-30 12:23:42 +0000
committerKevin Wolf <kwolf@redhat.com>2011-12-05 14:52:34 +0100
commit5f8b6491f20732e0a31e64bbf75b62def579e044 (patch)
tree2da9621db484711a4d29fdbf2df729c0545d0dcc /block-migration.c
parentbd9533e36ea3d6c964f65b8e407bad00dab59e5d (diff)
downloadfocaccia-qemu-5f8b6491f20732e0a31e64bbf75b62def579e044.tar.gz
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block: wait_for_overlapping_requests() deadlock detection
Debugging a reentrant request deadlock was fun but in the future we need
a quick and obvious way of detecting such bugs.  Add an assert that
checks we are not about to deadlock when waiting for another request.

Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block-migration.c')
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