Revoking state through 'unlock_filesystem' now revokes any lock states
found. When the stateids are then freed by the client, the revoked
stateids will be cleaned up correctly.
Signed-off-by: NeilBrown <[email protected]>
---
fs/nfsd/nfs4state.c | 40 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 39 insertions(+), 1 deletion(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index c57f2ff954cb..0f52e10fbdfb 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1708,7 +1708,7 @@ void nfsd4_revoke_states(struct net *net, struct super_block *sb)
unsigned int idhashval;
unsigned int sc_types;
- sc_types = 0;
+ sc_types = NFS4_LOCK_STID;
spin_lock(&nn->client_lock);
for (idhashval = 0; idhashval < CLIENT_HASH_MASK; idhashval++) {
@@ -1719,8 +1719,36 @@ void nfsd4_revoke_states(struct net *net, struct super_block *sb)
struct nfs4_stid *stid = find_one_sb_stid(clp, sb,
sc_types);
if (stid) {
+ struct nfs4_ol_stateid *stp;
+
spin_unlock(&nn->client_lock);
switch (stid->sc_type) {
+ case NFS4_LOCK_STID:
+ stp = openlockstateid(stid);
+ mutex_lock_nested(&stp->st_mutex,
+ LOCK_STATEID_MUTEX);
+ spin_lock(&clp->cl_lock);
+ if (stid->sc_status == 0) {
+ struct nfs4_lockowner *lo =
+ lockowner(stp->st_stateowner);
+ struct nfsd_file *nf;
+
+ stid->sc_status |=
+ NFS4_STID_ADMIN_REVOKED;
+ atomic_inc(&clp->cl_admin_revoked);
+ spin_unlock(&clp->cl_lock);
+ nf = find_any_file(stp->st_stid.sc_file);
+ if (nf) {
+ get_file(nf->nf_file);
+ filp_close(nf->nf_file,
+ (fl_owner_t)lo);
+ nfsd_file_put(nf);
+ }
+ release_all_access(stp);
+ } else
+ spin_unlock(&clp->cl_lock);
+ mutex_unlock(&stp->st_mutex);
+ break;
}
nfs4_put_stid(stid);
spin_lock(&nn->client_lock);
@@ -4659,8 +4687,18 @@ nfsd4_find_existing_open(struct nfs4_file *fp, struct nfsd4_open *open)
static void nfsd_drop_revoked_stid(struct nfs4_stid *s)
{
struct nfs4_client *cl = s->sc_client;
+ LIST_HEAD(reaplist);
+ struct nfs4_ol_stateid *stp;
+ bool unhashed;
switch (s->sc_type) {
+ case NFS4_LOCK_STID:
+ stp = openlockstateid(s);
+ unhashed = unhash_lock_stateid(stp);
+ spin_unlock(&cl->cl_lock);
+ if (unhashed)
+ nfs4_put_stid(s);
+ break;
default:
spin_unlock(&cl->cl_lock);
}
--
2.42.1