NFSv4: Ensure delegation recall and byte range lock removal don't conflict

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Add a mutex to the struct nfs4_state_owner to ensure that delegation
recall doesn't conflict with byte range lock removal.

Note that we nest the new mutex _outside_ the state manager reclaim
protection (nfsi->rwsem) in order to avoid deadlocks.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

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This commit is contained in:

Trond Myklebust 2013-02-07 10:54:07 -05:00

parent 37380e4264

commit 65b62a29f7

4 changed files with 16 additions and 2 deletions

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7

fs/nfs/delegation.c

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1

fs/nfs/nfs4_fs.h

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9

fs/nfs/nfs4proc.c

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1

fs/nfs/nfs4state.c

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