linux-kernel - [PATCH 22/22] mm/mempolicy: Use vma_lookup() in __access_remote

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Date:   Mon, 10 May 2021 16:58:59 +0000
From:   Liam Howlett <liam.howlett@...cle.com>
To:     "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     Song Liu <songliubraving@...com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Rik van Riel <riel@...riel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Michel Lespinasse <michel@...pinasse.org>,
        Liam Howlett <liam.howlett@...cle.com>
Subject: [PATCH 22/22] mm/mempolicy: Use vma_lookup() in __access_remote_vm()

vma_lookup() finds the vma of a specific address with a cleaner
interface and is more readable.

Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
---
 mm/mempolicy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index d79fa299b70c..325771bef5e2 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -975,7 +975,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask,
 		 * want to return MPOL_DEFAULT in this case.
 		 */
 		mmap_read_lock(mm);
-		vma = find_vma_intersection(mm, addr, addr+1);
+		vma = vma_lookup(mm, addr);
 		if (!vma) {
 			mmap_read_unlock(mm);
 			return -EFAULT;
-- 
2.30.2