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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-07-30 08:27:03 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2014-08-01 16:28:18 -0400 |
| commit | 4864af97e02d1ef6aa78963195a64ed2ed7752c3 (patch) | |
| tree | c7c09fa544f353f4777826e0c2cc575758798f17 | |
| parent | 4beb345b37fc099e98f40d20c94da6c07654005c (diff) | |
| download | linux-4864af97e02d1ef6aa78963195a64ed2ed7752c3.tar.gz linux-4864af97e02d1ef6aa78963195a64ed2ed7752c3.tar.bz2 linux-4864af97e02d1ef6aa78963195a64ed2ed7752c3.zip | |
nfsd: Ensure that the laundromat unhashes the client before releasing locks
If we leave the client on the confirmed/unconfirmed tables, and leave
the sessions visible on the sessionid_hashtbl, then someone might
find them before we've had a chance to destroy them.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4state.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index cb630db015b0..a374592e7dcf 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4125,13 +4125,15 @@ nfs4_laundromat(struct nfsd_net *nn) clp->cl_clientid.cl_id); continue; } - list_move(&clp->cl_lru, &reaplist); + unhash_client_locked(clp); + list_add(&clp->cl_lru, &reaplist); } spin_unlock(&nn->client_lock); list_for_each_safe(pos, next, &reaplist) { clp = list_entry(pos, struct nfs4_client, cl_lru); dprintk("NFSD: purging unused client (clientid %08x)\n", clp->cl_clientid.cl_id); + list_del_init(&clp->cl_lru); expire_client(clp); } spin_lock(&state_lock); |