diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2014-05-08 11:19:41 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-06-09 13:29:15 +0100 |
| commit | 4cb5bbfb6626289d638fa5cee9357305376d6327 (patch) | |
| tree | f6b4eb110619f51c4ff1b4941af4f3a0de3fd8ba /fs | |
| parent | 780c2efc83852e093aa1e53dfebe2e0429f22c04 (diff) | |
nfsd4: warn on finding lockowner without stateid's
commit 27b11428b7de097c42f205beabb1764f4365443b upstream.
The current code assumes a one-to-one lockowner<->lock stateid
correspondance.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/nfs4state.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 6445fbd4fd43..b2e0a5585aed 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3820,6 +3820,10 @@ static bool same_lockowner_ino(struct nfs4_lockowner *lo, struct inode *inode, c if (!same_owner_str(&lo->lo_owner, owner, clid)) return false; + if (list_empty(&lo->lo_owner.so_stateids)) { + WARN_ON_ONCE(1); + return false; + } lst = list_first_entry(&lo->lo_owner.so_stateids, struct nfs4_ol_stateid, st_perstateowner); return lst->st_file->fi_inode == inode; |