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Commit b88fa69e authored by Trond Myklebust's avatar Trond Myklebust
Browse files

pNFS: The client must not do I/O to the DS if it's lease has expired 



Ensure that the client conforms to the normative behaviour described in
RFC5661 Section 12.7.2: "If a client believes its lease has expired,
it MUST NOT send I/O to the storage device until it has validated its
lease."

So ensure that we wait for the lease to be validated before using
the layout.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v3.20+
parent 9a0fe867

fs/nfs/pnfs.c

+1 −0
Original line number Diff line number Diff line
@@ -1555,6 +1555,7 @@ pnfs_update_layout(struct inode *ino, 
	}



lookup_again:

	nfs4_client_recover_expired_lease(clp);

	first = false;

	spin_lock(&ino->i_lock);

	lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags);