lkml.org 
[lkml]   [2018]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 3/5] mm/memory_hotplug: Tidy up node_states_clear_node
Date
From: Oscar Salvador <osalvador@suse.de>

node_states_clear has the following if statements:

if ((N_MEMORY != N_NORMAL_MEMORY) &&
(arg->status_change_nid_high >= 0))
...

if ((N_MEMORY != N_HIGH_MEMORY) &&
(arg->status_change_nid >= 0))
...

N_MEMORY can never be equal to neither N_NORMAL_MEMORY nor
N_HIGH_MEMORY.

Similar problem was found in [1].
Since this is wrong, let us get rid of it.

[1] https://patchwork.kernel.org/patch/10579155/

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
mm/memory_hotplug.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index c2c7359bd0a7..131c08106d54 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1590,12 +1590,10 @@ static void node_states_clear_node(int node, struct memory_notify *arg)
if (arg->status_change_nid_normal >= 0)
node_clear_state(node, N_NORMAL_MEMORY);

- if ((N_MEMORY != N_NORMAL_MEMORY) &&
- (arg->status_change_nid_high >= 0))
+ if (arg->status_change_nid_high >= 0)
node_clear_state(node, N_HIGH_MEMORY);

- if ((N_MEMORY != N_HIGH_MEMORY) &&
- (arg->status_change_nid >= 0))
+ if (arg->status_change_nid >= 0)
node_clear_state(node, N_MEMORY);
}

--
2.13.6
\
 
 \ /
  Last update: 2018-09-19 12:09    [W:0.098 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site