SUNRPC: Ensure rpcauth_prune_expired() respects the nr_to_scan parameter

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index c40856f589f0..73affb8624fa 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -236,6 +236,8 @@ rpcauth_prune_expired(struct list_head *free, int nr_to_scan)
 
         list_for_each_entry_safe(cred, next, &cred_unused, cr_lru) {
 
+                if (nr_to_scan-- == 0)
+                        break;
                 /*
                  * Enforce a 60 second garbage collection moratorium
                  * Note that the cred_unused list must be time-ordered.
@@ -255,11 +257,8 @@ rpcauth_prune_expired(struct list_head *free, int nr_to_scan)
                         get_rpccred(cred);
                         list_add_tail(&cred->cr_lru, free);
                         rpcauth_unhash_cred_locked(cred);
-                        nr_to_scan--;
                 }
                 spin_unlock(cache_lock);
-                if (nr_to_scan == 0)
-                        break;
         }
         return (number_cred_unused / 100) * sysctl_vfs_cache_pressure;
 }