linux-kernel - [PATCH] mm/thp/autonuma: Use TNF flag instead of vm fault.

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Date:   Sun, 19 Feb 2017 15:29:55 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:     akpm@...ux-foundation.org, Rik van Riel <riel@...riel.com>,
        Mel Gorman <mgorman@...hsingularity.net>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH] mm/thp/autonuma: Use TNF flag instead of vm fault.

We are using wrong flag value in task_numa_falt function. This can result in
us doing wrong numa fault statistics update, because we update num_pages_migrate
and numa_fault_locality etc based on the flag argument passed.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 mm/huge_memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 5f3ad65c85de..8f1d93257fb9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1333,7 +1333,7 @@ int do_huge_pmd_numa_page(struct vm_fault *vmf, pmd_t pmd)
 
 	if (page_nid != -1)
 		task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR,
-				vmf->flags);
+				flags);
 
 	return 0;
 }
-- 
2.7.4