diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-23 11:19:33 -0400 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-09-12 12:52:25 -0400 |
| commit | f3c774844e4950d7afab7a8d5518750cbcdcc5ed (patch) | |
| tree | a3c346ec39579c800ef6318d81298254a4e9b068 | |
| parent | 47998eb567e31b9b5f4b6ffcbacace83be60f915 (diff) | |
| download | lwn-f3c774844e4950d7afab7a8d5518750cbcdcc5ed.tar.gz lwn-f3c774844e4950d7afab7a8d5518750cbcdcc5ed.zip | |
pNFS: The client must not do I/O to the DS if it's lease has expired
[ Upstream commit b88fa69eaa8649f11828158c7b65c4bcd886ebd5 ]
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: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v3.20+
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
| -rw-r--r-- | fs/nfs/pnfs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index d47c188682b1..ea4fe630cdac 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1472,6 +1472,7 @@ pnfs_update_layout(struct inode *ino, goto out; lookup_again: + nfs4_client_recover_expired_lease(clp); first = false; spin_lock(&ino->i_lock); lo = pnfs_find_alloc_layout(ino, ctx, gfp_flags); |