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block: wait for overlapping requests
authorStefan Hajnoczi <[email protected]>
Thu, 17 Nov 2011 13:40:29 +0000 (13:40 +0000)
committerKevin Wolf <[email protected]>
Mon, 5 Dec 2011 13:51:38 +0000 (14:51 +0100)
commitf4658285f99473367dbbc34ce6970ec4637c2388
tree7cc84f22cc93a3fe458c6d483a09d60de064bf71tree | snapshot
parent53fec9d3fd3d3a4ded4b92dfa843436bf71380f1commit | diff
block: wait for overlapping requests

When copy-on-read is enabled it is necessary to wait for overlapping
requests before issuing new requests.  This prevents races between the
copy-on-read and a write request.

Signed-off-by: Stefan Hajnoczi <[email protected]>
Signed-off-by: Kevin Wolf <[email protected]>
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