nfsd: nfsd4_locku() must reference the lock stateid
Ensure that nfsd4_locku() keeps a reference to the lock stateid
until it is done working with it. Necessary step toward client_mutex
removal.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 1ddf4da..4f19145 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -5147,10 +5147,12 @@
&stp, nn);
if (status)
goto out;
+ /* FIXME: move into nfs4_preprocess_seqid_op */
+ atomic_inc(&stp->st_stid.sc_count);
filp = find_any_file(stp->st_stid.sc_file);
if (!filp) {
status = nfserr_lock_range;
- goto out;
+ goto put_stateid;
}
file_lock = locks_alloc_lock();
if (!file_lock) {
@@ -5180,6 +5182,8 @@
memcpy(&locku->lu_stateid, &stp->st_stid.sc_stateid, sizeof(stateid_t));
fput:
fput(filp);
+put_stateid:
+ nfs4_put_stid(&stp->st_stid);
out:
nfsd4_bump_seqid(cstate, status);
if (!cstate->replay_owner)