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authorTrond Myklebust2013-04-30 11:43:42 -0500
committerGreg Kroah-Hartman2013-05-11 15:54:10 -0500
commit76e7f478a400a76a37a05848cc2e9263e0d0cb40 (patch)
tree69a0fbd8caa5de771223f8477f0c38c3c25efcd3 /Documentation
parent5a3f1f30a22ab33f948f0c4a6d56fc7cc5df5199 (diff)
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NFSv4.x: Fix handling of partially delegated locks
commit c5a2a15f8146fdfe45078df7873a6dc1006b3869 upstream. If a NFS client receives a delegation for a file after it has taken a lock on that file, we can currently end up in a situation where we mistakenly skip unlocking that file. The following patch swaps an erroneous check in nfs4_proc_unlck for whether or not the file has a delegation to one which checks whether or not we hold a lock stateid for that file. Reported-by: Chuck Lever <Chuck.Lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Tested-by: Chuck Lever <Chuck.Lever@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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