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authorPavel Emelianov <xemul@openvz.org>2006-11-02 22:07:03 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-11-03 12:27:56 -0800
commitc7e12b838989b0e432c7a1cdf1e6c6fd936007f6 (patch)
tree31a6eea1d9ace0b467ab6bb209dd6a883910d682 /ipc/msg.c
parent733b72c31efb0d6b29577655939ccfe835381b52 (diff)
downloadlinux-2.6.38-lt-ux500-c7e12b838989b0e432c7a1cdf1e6c6fd936007f6.tar.gz
[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/msg.c')
-rw-r--r--ipc/msg.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 5b213d95254..600e06f943a 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -124,6 +124,7 @@ void msg_exit_ns(struct ipc_namespace *ns)
}
mutex_unlock(&msg_ids(ns).mutex);
+ ipc_fini_ids(ns->ids[IPC_MSG_IDS]);
kfree(ns->ids[IPC_MSG_IDS]);
ns->ids[IPC_MSG_IDS] = NULL;
}