[PATCH] mm: memcg: keep root group unchanged if fail to create new

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



If the request is not to create root group and we fail to meet it, we'd leave
the root unchanged.

Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
---

--- a/mm/memcontrol.c	Fri Dec  9 21:57:40 2011
+++ b/mm/memcontrol.c	Sun Dec 11 09:04:48 2011
@@ -4849,8 +4849,10 @@ mem_cgroup_create(struct cgroup_subsys *
 		enable_swap_cgroup();
 		parent = NULL;
 		root_mem_cgroup = memcg;
-		if (mem_cgroup_soft_limit_tree_init())
+		if (mem_cgroup_soft_limit_tree_init()) {
+			root_mem_cgroup = NULL;
 			goto free_out;
+		}
 		for_each_possible_cpu(cpu) {
 			struct memcg_stock_pcp *stock =
 						&per_cpu(memcg_stock, cpu);
@@ -4888,7 +4890,6 @@ mem_cgroup_create(struct cgroup_subsys *
 	return &memcg->css;
 free_out:
 	__mem_cgroup_free(memcg);
-	root_mem_cgroup = NULL;
 	return ERR_PTR(error);
 }

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>


[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux]     [Linux OMAP]     [Linux MIPS]     [ECOS]     [Asterisk Internet PBX]     [Linux API]