On Fri, Oct 08, 2021 at 01:24:28PM -0700, Mike Kravetz wrote:
> In general, the resize_lock prevents unexpected consequences when
> multiple users are modifying the number of pages in a pool concurrently
> from the proc/sysfs interfaces. The mutex is acquired here because we
> are modifying (decreasing) the pool size.
Yes, I got that. My question was wrt. n_mask initialization:
+ if (nid != NUMA_NO_NODE) {
+ init_nodemask_of_node(&nodes_allowed, nid);
+ n_mask = &nodes_allowed;
+ } else {
+ n_mask = &node_states[N_MEMORY];
+ }
AFAICS, this does not need to be protected.
with that addressed:
Reviewed-by: Oscar Salvador <osalvador@xxxxxxx>
--
Oscar Salvador
SUSE Labs
