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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-23 11:19:33 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-23 11:27:01 -0400 |
| commit | b88fa69eaa8649f11828158c7b65c4bcd886ebd5 (patch) | |
| tree | 797ad7c0663edcb4bed56a4346ce2ce95191aa1d /fs/nfs/pnfs.c | |
| parent | pNFS: Handle NFS4ERR_OLD_STATEID correctly in LAYOUTSTAT calls (diff) | |
| download | linux-dev-b88fa69eaa8649f11828158c7b65c4bcd886ebd5.tar.xz linux-dev-b88fa69eaa8649f11828158c7b65c4bcd886ebd5.zip | |
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: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v3.20+
Diffstat (limited to 'fs/nfs/pnfs.c')
| -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 bf98f1b2595f..6daf034645c8 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -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); |