commit: 5ca3957510b9fc2a14d3647db518014842f9a2b4 From: Hillf Danton <[email protected]> Date: Fri, 8 Mar 2013 12:43:28 -0800 Subject: mm/mempolicy.c: fix wrong sp_node insertion
n->end is accessed in sp_insert(). Thus it should be update before calling sp_insert(). This mistake may make kernel panic. Signed-off-by: Hillf Danton <[email protected]> Signed-off-by: KOSAKI Motohiro <[email protected]> Cc: Sasha Levin <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Dave Jones <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]> --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 31d2663..868d08f 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2391,8 +2391,8 @@ restart: *mpol_new = *n->policy; atomic_set(&mpol_new->refcnt, 1); sp_node_init(n_new, n->end, end, mpol_new); - sp_insert(sp, n_new); n->end = start; + sp_insert(sp, n_new); n_new = NULL; mpol_new = NULL; break; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
