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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-23 11:19:33 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-24 10:09:27 +0200 |
| commit | 36148aaa4fc5826fe9db860a2dcc15ad701159f6 (patch) | |
| tree | aa16f32b4c38fb5de73bf0b6530213705514b18f /fs | |
| parent | 01b5dd8fe979089c1197bf0665a17ed8a5c7f568 (diff) | |
| download | lwn-36148aaa4fc5826fe9db860a2dcc15ad701159f6.tar.gz lwn-36148aaa4fc5826fe9db860a2dcc15ad701159f6.zip | |
pNFS: The client must not do I/O to the DS if it's lease has expired
commit b88fa69eaa8649f11828158c7b65c4bcd886ebd5 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -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 7d992362ff04..8b03cd369279 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -1527,6 +1527,7 @@ 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); |