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authorPavel Emelianov <xemul@openvz.org>2006-11-03 01:07:03 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-11-03 15:27:56 -0500
commitc7e12b838989b0e432c7a1cdf1e6c6fd936007f6 (patch)
tree31a6eea1d9ace0b467ab6bb209dd6a883910d682 /ipc/shm.c
parent733b72c31efb0d6b29577655939ccfe835381b52 (diff)
[PATCH] Fix ipc entries removal
Fix two issuses related to ipc_ids->entries freeing. 1. When freeing ipc namespace we need to free entries allocated with ipc_init_ids(). 2. When removing old entries in grow_ary() ipc_rcu_putref() may be called on entries set to &ids->nullentry earlier in ipc_init_ids(). This is almost impossible without namespaces, but with them this situation becomes possible. Found during OpenVZ testing after obvious leaks in beancounters. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Cc: Kirill Korotaev <dev@openvz.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc/shm.c')
-rw-r--r--ipc/shm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index bfbd317ec11c..d1198dd07a1a 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -116,6 +116,7 @@ void shm_exit_ns(struct ipc_namespace *ns)
116 } 116 }
117 mutex_unlock(&shm_ids(ns).mutex); 117 mutex_unlock(&shm_ids(ns).mutex);
118 118
119 ipc_fini_ids(ns->ids[IPC_SHM_IDS]);
119 kfree(ns->ids[IPC_SHM_IDS]); 120 kfree(ns->ids[IPC_SHM_IDS]);
120 ns->ids[IPC_SHM_IDS] = NULL; 121 ns->ids[IPC_SHM_IDS] = NULL;
121} 122}