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| author | Baoquan He <bhe@redhat.com> | 2019-05-14 03:17:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-15 12:52:52 +0300 |
| commit | e39f78afb731a05d4ca1f55fc17cae7b3d95465e (patch) | |
| tree | 0cb99735654fb024d2a721dcb5728ba724893368 /mm | |
| parent | f3918ea4962b4238fcc7317974023527ac69342c (diff) | |
| download | linux-e39f78afb731a05d4ca1f55fc17cae7b3d95465e.tar.xz | |
mm/memory_hotplug.c: fix the wrong usage of N_HIGH_MEMORY
[ Upstream commit d3ba3ae19751e476b0840a0c9a673a5766fa3219 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm')
| -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 28587f290109..547e48addced 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -700,7 +700,7 @@ 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 } |