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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-01-26 21:42:21 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2010-01-26 21:42:21 +0100 |
| commit | 2bee72a6aa1e6d0a4f5da56217f0d0bbbdd0d9a3 (patch) | |
| tree | 62a943e0bfb1cff52ac9e54ef5d8a5cea3fbfa35 /fs | |
| parent | NFS: Avoid warnings when CONFIG_NFS_V4=n (diff) | |
| download | linux-2bee72a6aa1e6d0a4f5da56217f0d0bbbdd0d9a3.tar.xz linux-2bee72a6aa1e6d0a4f5da56217f0d0bbbdd0d9a3.zip | |
NFSv4: Ensure that the NFSv4 locking can recover from stateid errors
In most cases, we just want to mark the lock_stateid sequence id as being
uninitialised.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 198d51d17c13..0b68238ed0c8 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -4088,6 +4088,22 @@ static const struct rpc_call_ops nfs4_recover_lock_ops = { .rpc_release = nfs4_lock_release, }; +static void nfs4_handle_setlk_error(struct nfs_server *server, struct nfs4_lock_state *lsp, int new_lock_owner, int error) +{ + struct nfs_client *clp = server->nfs_client; + struct nfs4_state *state = lsp->ls_state; + + switch (error) { + case -NFS4ERR_ADMIN_REVOKED: + case -NFS4ERR_BAD_STATEID: + case -NFS4ERR_EXPIRED: + if (new_lock_owner != 0 || + (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0) + nfs4_state_mark_reclaim_nograce(clp, state); + lsp->ls_seqid.flags &= ~NFS_SEQID_CONFIRMED; + }; +} + static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *fl, int recovery_type) { struct nfs4_lockdata *data; @@ -4126,6 +4142,9 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *f ret = nfs4_wait_for_completion_rpc_task(task); if (ret == 0) { ret = data->rpc_status; + if (ret) + nfs4_handle_setlk_error(data->server, data->lsp, + data->arg.new_lock_owner, ret); } else data->cancelled = 1; rpc_put_task(task); |