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NFS: Clean up nfs4_find_state_owners_locked()

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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>
This commit is contained in:
Chuck Lever 2011-12-06 16:13:39 -05:00 committed by Trond Myklebust
parent bf118a342f
commit 414adf14cd
1 changed files with 3 additions and 12 deletions
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15
fs/nfs/nfs4state.c
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@ -377,31 +377,22 @@ nfs4_find_state_owner_locked(struct nfs_server *server, struct rpc_cred *cred)
{
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 *