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| author |   Baoquan He <bhe@redhat.com> | 2019-05-13 17:17:35 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:46 -0700 |
| commit | d3ba3ae19751e476b0840a0c9a673a5766fa3219 (patch) | |
| tree | bc991f7623e6057e3f8dea55b81e05da3f877ef8 /mm/memory_hotplug.c | |
| parent | mm,memory_hotplug: drop redundant hugepage_migration_supported check (diff) | |
| download | linux-dev-d3ba3ae19751e476b0840a0c9a673a5766fa3219.tar.xz linux-dev-d3ba3ae19751e476b0840a0c9a673a5766fa3219.zip | |
mm/memory_hotplug.c: fix the wrong usage of N_HIGH_MEMORY
In node_states_check_changes_online(), N_HIGH_MEMORY is used to substitute
ZONE_HIGHMEM directly. This is not right. N_HIGH_MEMORY is to mark the
memory state of node. Here zone index is checked, which should be
compared with 'ZONE_HIGHMEM' accordingly.
Replace it with ZONE_HIGHMEM.
This is a code cleanup - no known runtime effects.
Link: http://lkml.kernel.org/r/20190320080732.14933-1-bhe@redhat.com
Fixes: 8efe33f40f3e ("mm/memory_hotplug.c: simplify node_states_check_changes_online")
Signed-off-by: Baoquan He <bhe@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/memory_hotplug.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index ed4e70c501e6..a279671b9968 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -714,7 +714,7 @@ static void node_states_check_changes_online(unsigned long nr_pages, if (zone_idx(zone) <= ZONE_NORMAL && !node_state(nid, N_NORMAL_MEMORY)) arg->status_change_nid_normal = nid; #ifdef CONFIG_HIGHMEM - if (zone_idx(zone) <= N_HIGH_MEMORY && !node_state(nid, N_HIGH_MEMORY)) + if (zone_idx(zone) <= ZONE_HIGHMEM && !node_state(nid, N_HIGH_MEMORY)) arg->status_change_nid_high = nid; #endif } |