diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-10-28 20:21:41 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-10-28 20:21:41 +0100 |
| commit | eac0d18d44705f8a1b72cccec3a453e1a43eb20a (patch) | |
| tree | b727174dba608adc5c4cbfaea9e19b2c6ac1cf26 /net | |
| parent | NFS: Convert nfs_attr_generation_counter into an atomic_long (diff) | |
| download | linux-eac0d18d44705f8a1b72cccec3a453e1a43eb20a.tar.xz linux-eac0d18d44705f8a1b72cccec3a453e1a43eb20a.zip | |
SUNRPC: Fix rpcauth_prune_expired
We need to make sure that we don't remove creds from the cred_unused list
if they are still under the moratorium, or else they will never get
garbage collected.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/auth.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 436bf1b4b76c..a045a1253d49 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -228,19 +228,21 @@ static int rpcauth_prune_expired(struct list_head *free, int nr_to_scan) { spinlock_t *cache_lock; - struct rpc_cred *cred; + struct rpc_cred *cred, *next; unsigned long expired = jiffies - RPC_AUTH_EXPIRY_MORATORIUM; - while (!list_empty(&cred_unused)) { - cred = list_entry(cred_unused.next, struct rpc_cred, cr_lru); + list_for_each_entry_safe(cred, next, &cred_unused, cr_lru) { + + /* Enforce a 60 second garbage collection moratorium */ + if (time_in_range(cred->cr_expire, expired, jiffies) && + test_bit(RPCAUTH_CRED_HASHED, &cred->cr_flags) != 0) + continue; + list_del_init(&cred->cr_lru); number_cred_unused--; if (atomic_read(&cred->cr_count) != 0) continue; - /* Enforce a 5 second garbage collection moratorium */ - if (time_in_range(cred->cr_expire, expired, jiffies) && - test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0) - continue; + cache_lock = &cred->cr_auth->au_credcache->lock; spin_lock(cache_lock); if (atomic_read(&cred->cr_count) == 0) { |