Re: [PATCH 2.6.16-mm2 4/4] sched_domain: Allocate sched_group structures dynamically

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Srivatsa Vaddagiri wrote:
On Sun, Apr 02, 2006 at 11:39:30AM +1000, Nick Piggin wrote:

Srivatsa Vaddagiri wrote:

+		if (!sched_group_phys) {
+			sched_group_phys
+ = kmalloc(sizeof(struct sched_group) * NR_CPUS,
+					  GFP_KERNEL);
+			if (!sched_group_phys) {
+ printk (KERN_WARNING "Can not alloc phys sched"
+						     "group\n");
+				goto error;
+			}
+			sched_group_phys_bycpu[i] = sched_group_phys;
+		}

Doesn't the last assignment have to be outside the if statement?


I dont think so. The assignment can happen once (when we allocate
successfully) and not every time in the for loop?


Then after you have allocated sched_group_phys, subsequent cpus
in cpu_map will have their sched_group_phys_bycpu[] entry
uninitialised, by the looks?

--
SUSE Labs, Novell Inc.
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