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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2014-01-17 17:03:41 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-01-19 09:31:59 -0500 |
| commit | 64590daa9e0dfb3aad89e3ab9230683b76211d5b (patch) | |
| tree | 376c49758cd4fabf70ca51a57e0a96192c931a5b /fs/nfs | |
| parent | nfs: always make sure page is up-to-date before extending a write to cover the entire page (diff) | |
| download | linux-dev-64590daa9e0dfb3aad89e3ab9230683b76211d5b.tar.xz linux-dev-64590daa9e0dfb3aad89e3ab9230683b76211d5b.zip | |
NFSv4.1: Handle errors correctly in nfs41_walk_client_list
Both nfs41_walk_client_list and nfs40_walk_client_list expect the
'status' variable to be set to the value -NFS4ERR_STALE_CLIENTID
if the loop fails to find a match.
The problem is that the 'pos->cl_cons_state > NFS_CS_READY' changes
the value of 'status', and sets it either to the value '0' (which
indicates success), or to the value EINTR.
Cc: stable@vger.kernel.org # 3.7.x: 7b1f1fd1842e6: NFSv4/4.1: Fix bugs in
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4client.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index c1b7a80b6704..06e770ace073 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -498,9 +498,10 @@ int nfs40_walk_client_list(struct nfs_client *new, prev = pos; status = nfs_wait_client_init_complete(pos); - spin_lock(&nn->nfs_client_lock); if (status < 0) - continue; + goto out; + status = -NFS4ERR_STALE_CLIENTID; + spin_lock(&nn->nfs_client_lock); } if (pos->cl_cons_state != NFS_CS_READY) continue; @@ -638,7 +639,8 @@ int nfs41_walk_client_list(struct nfs_client *new, } spin_lock(&nn->nfs_client_lock); if (status < 0) - continue; + break; + status = -NFS4ERR_STALE_CLIENTID; } if (pos->cl_cons_state != NFS_CS_READY) continue; |