NFS: Force the legacy idmapper to be single threaded
authorBryan Schumaker <bjschuma@netapp.com>
Wed, 20 Jun 2012 18:35:28 +0000 (14:35 -0400)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 20 Jun 2012 18:38:11 +0000 (14:38 -0400)
It was initially coded under the assumption that there would only be one
request at a time, so use a lock to enforce this requirement..

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
CC: stable@vger.kernel.org [3.4+]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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