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authorTrond Myklebust <trond.myklebust@primarydata.com>2014-08-25 22:09:08 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-05 16:36:42 -0700
commit96bd3efeed06462bb87d6fdd6d8e66750f294d08 (patch)
treec0bc305f7632c936cd455fe4a1854c3d6619b57d
parente77da97c5aefbc9828313f3b8da4ac5ee4260e53 (diff)
NFSv4: Don't clear the open state when we just did an OPEN_DOWNGRADE
commit 412f6c4c26fb1eba8844290663837561ac53fa6e upstream. If we did an OPEN_DOWNGRADE, then the right thing to do on success, is to apply the new open mode to the struct nfs4_state. Instead, we were unconditionally clearing the state, making it appear to our state machinery as if we had just performed a CLOSE. Fixes: 226056c5c312b (NFSv4: Use correct locking when updating nfs4_state...) Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/nfs/nfs4proc.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4bf3d97cc5a0..bcb8c0bf8963 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2545,6 +2545,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_closedata *calldata = data;
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
+ nfs4_stateid *res_stateid = NULL;
dprintk("%s: begin!\n", __func__);
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
@@ -2555,12 +2556,12 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
*/
switch (task->tk_status) {
case 0:
- if (calldata->roc)
+ res_stateid = &calldata->res.stateid;
+ if (calldata->arg.fmode == 0 && calldata->roc)
pnfs_roc_set_barrier(state->inode,
calldata->roc_barrier);
- nfs_clear_open_stateid(state, &calldata->res.stateid, 0);
renew_lease(server, calldata->timestamp);
- goto out_release;
+ break;
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_STALE_STATEID:
case -NFS4ERR_OLD_STATEID:
@@ -2574,7 +2575,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
goto out_release;
}
}
- nfs_clear_open_stateid(state, NULL, calldata->arg.fmode);
+ nfs_clear_open_stateid(state, res_stateid, calldata->arg.fmode);
out_release:
nfs_release_seqid(calldata->arg.seqid);
nfs_refresh_inode(calldata->inode, calldata->res.fattr);