NFS: Clean up nfs4_find_state_owners_locked()
There's no longer a need to check the so_server field in the state
owner, because nowadays the RB tree we search for state owners
contains owners for that only server.
Make nfs4_find_state_owners_locked() use the same tree searching logic
as nfs4_insert_state_owner_locked().
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 6a7107a..6354e4f 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -377,31 +377,22 @@
{
struct rb_node **p = &server->state_owners.rb_node,
*parent = NULL;
- struct nfs4_state_owner *sp, *res = NULL;
+ struct nfs4_state_owner *sp;
while (*p != NULL) {
parent = *p;
sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);
- if (server < sp->so_server) {
- p = &parent->rb_left;
- continue;
- }
- if (server > sp->so_server) {
- p = &parent->rb_right;
- continue;
- }
if (cred < sp->so_cred)
p = &parent->rb_left;
else if (cred > sp->so_cred)
p = &parent->rb_right;
else {
atomic_inc(&sp->so_count);
- res = sp;
- break;
+ return sp;
}
}
- return res;
+ return NULL;
}
static struct nfs4_state_owner *