Subject: + mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy.patch added to -mm tree
To: wujianguo@xxxxxxxxxx,guohanjun@xxxxxxxxxx,hughd@xxxxxxxxxx,kosaki.motohiro@xxxxxxxxxxxxxx,mgorman@xxxxxxx,riel@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 06 Aug 2013 14:04:19 -0700
The patch titled
Subject: mm/mempolicy: return NULL if node is NUMA_NO_NODE in get_task_policy
has been added to the -mm tree. Its filename is
mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Jianguo Wu <wujianguo@xxxxxxxxxx>
Subject: mm/mempolicy: return NULL if node is NUMA_NO_NODE in get_task_policy
If node == NUMA_NO_NODE, pol is NULL, we should return NULL instead of
do "if (!pol->mode)" check.
[akpm@xxxxxxxxxxxxxxxxxxxx: reorganise code]
Signed-off-by: Jianguo Wu <wujianguo@xxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Hanjun Guo <guohanjun@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mempolicy.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)
diff -puN mm/mempolicy.c~mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy mm/mempolicy.c
--- a/mm/mempolicy.c~mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy
+++ a/mm/mempolicy.c
@@ -123,16 +123,19 @@ static struct mempolicy preferred_node_p
static struct mempolicy *get_task_policy(struct task_struct *p)
{
struct mempolicy *pol = p->mempolicy;
- int node;
if (!pol) {
- node = numa_node_id();
- if (node != NUMA_NO_NODE)
- pol = &preferred_node_policy[node];
+ int node = numa_node_id();
- /* preferred_node_policy is not initialised early in boot */
- if (!pol->mode)
- pol = NULL;
+ if (node != NUMA_NO_NODE) {
+ pol = &preferred_node_policy[node];
+ /*
+ * preferred_node_policy is not initialised early in
+ * boot
+ */
+ if (!pol->mode)
+ pol = NULL;
+ }
}
return pol;
_
Patches currently in -mm which might be from wujianguo@xxxxxxxxxx are
mm-mempolicy-return-null-if-node-is-numa_no_node-in-get_task_policy.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
