linux-kernel - [PATCH] mm: delete bool "migrated"

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Date:   Mon,  1 Mar 2021 20:57:01 +0800
From:   Wang Qing <wangqing@...o.com>
To:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] mm: delete bool "migrated"

Smatch gives the warning:
	do_numa_page() warn: assigning (-11) to unsigned variable 'migrated'

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 mm/memory.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index 784249f..d8125df
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4102,7 +4102,6 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
 	int page_nid = NUMA_NO_NODE;
 	int last_cpupid;
 	int target_nid;
-	bool migrated = false;
 	pte_t pte, old_pte;
 	bool was_writable = pte_savedwrite(vmf->orig_pte);
 	int flags = 0;
@@ -4172,8 +4171,7 @@ static vm_fault_t do_numa_page(struct vm_fault *vmf)
 	}
 
 	/* Migrate to the requested node */
-	migrated = migrate_misplaced_page(page, vma, target_nid);
-	if (migrated) {
+	if (migrate_misplaced_page(page, vma, target_nid)) {
 		page_nid = target_nid;
 		flags |= TNF_MIGRATED;
 	} else
-- 
2.7.4