diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-03-07 16:39:06 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-02 09:52:50 -0700 |
| commit | 12a2bb2225a1636d291af1714ac6da2b2947ced8 (patch) | |
| tree | 6dbadf8d5279026dd5b73b109ef0c3629d7c47e8 /fs/nfs | |
| parent | 7be1e5fdc0b3932ab0882820f69e27769bfd9d70 (diff) | |
NFSv4: Return the delegation if the server returns NFS4ERR_OPENMODE
commit 3114ea7a24d3264c090556a2444fc6d2c06176d4 upstream.
If a setattr() fails because of an NFS4ERR_OPENMODE error, it is
probably due to us holding a read delegation. Ensure that the
recovery routines return that delegation in this case.
Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4_fs.h | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index d6ba137f185..0983b2581ea 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -191,6 +191,7 @@ struct nfs4_exception { long timeout; int retry; struct nfs4_state *state; + struct inode *inode; }; struct nfs4_state_recovery_ops { diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a51e1ddb0a2..758e8096caa 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -257,18 +257,28 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc { struct nfs_client *clp = server->nfs_client; struct nfs4_state *state = exception->state; + struct inode *inode = exception->inode; int ret = errorcode; exception->retry = 0; switch(errorcode) { case 0: return 0; + case -NFS4ERR_OPENMODE: + if (nfs_have_delegation(inode, FMODE_READ)) { + nfs_inode_return_delegation(inode); + exception->retry = 1; + return 0; + } + if (state == NULL) + break; + nfs4_schedule_stateid_recovery(server, state); + goto wait_on_recovery; case -NFS4ERR_DELEG_REVOKED: case -NFS4ERR_ADMIN_REVOKED: case -NFS4ERR_BAD_STATEID: if (state != NULL) nfs_remove_bad_delegation(state->inode); - case -NFS4ERR_OPENMODE: if (state == NULL) break; nfs4_schedule_stateid_recovery(server, state); @@ -1901,6 +1911,7 @@ static int nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred, struct nfs_server *server = NFS_SERVER(inode); struct nfs4_exception exception = { .state = state, + .inode = inode, }; int err; do { |