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From: Wei Yang <richardw.yang@linux.intel.com>
To: akpm@linux-foundation.org
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	mhocko@suse.com, yang.shi@linux.alibaba.com,
	Wei Yang <richardw.yang@linux.intel.com>
Subject: [PATCH 2/8] mm/migrate.c: not necessary to check start and i
Date: Sun, 19 Jan 2020 11:06:30 +0800	[thread overview]
Message-ID: <20200119030636.11899-3-richardw.yang@linux.intel.com> (raw)
In-Reply-To: <20200119030636.11899-1-richardw.yang@linux.intel.com>

Till here, i must no less than start. And if i equals to start,
store_status() would always return 0.

Remove some unnecessary check to make it easy to read and prepare for
further cleanup.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
---
 mm/migrate.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index ba7cf4fa43a0..c3ef70de5876 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1664,11 +1664,9 @@ static int do_pages_move(struct mm_struct *mm, nodemask_t task_nodes,
 		err = do_move_pages_to_node(mm, &pagelist, current_node);
 		if (err)
 			goto out;
-		if (i > start) {
-			err = store_status(status, start, current_node, i - start);
-			if (err)
-				goto out;
-		}
+		err = store_status(status, start, current_node, i - start);
+		if (err)
+			goto out;
 		current_node = NUMA_NO_NODE;
 	}
 out_flush:
-- 
2.17.1



  parent reply	other threads:[~2020-01-19  3:07 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-19  3:06 [PATCH 0/8] mm/migrate.c: cleanup on do_pages_move() Wei Yang
2020-01-19  3:06 ` [PATCH 1/8] mm/migrate.c: skip node check if done in last round Wei Yang
2020-01-20  9:36   ` Michal Hocko
2020-01-20 22:25     ` Wei Yang
2020-01-21  8:42       ` Michal Hocko
2020-01-22  0:36         ` Wei Yang
2020-01-22  8:16           ` Michal Hocko
2020-01-19  3:06 ` Wei Yang [this message]
2020-01-19 22:14   ` [PATCH 2/8] mm/migrate.c: not necessary to check start and i David Rientjes
2020-01-20  0:31     ` Wei Yang
2020-01-20  9:45   ` Michal Hocko
2020-01-19  3:06 ` [PATCH 3/8] mm/migrate.c: reform the last call on do_move_pages_to_node() Wei Yang
2020-01-20  9:46   ` Michal Hocko
2020-01-20 22:27     ` Wei Yang
2020-01-19  3:06 ` [PATCH 4/8] mm/migrate.c: wrap do_move_pages_to_node() and store_status() Wei Yang
2020-01-20  9:49   ` Michal Hocko
2020-01-19  3:06 ` [PATCH 5/8] mm/migrate.c: check pagelist in move_pages_and_store_status() Wei Yang
2020-01-20  9:52   ` Michal Hocko
2020-01-19  3:06 ` [PATCH 6/8] mm/migrate.c: handle same node and add failure in the same way Wei Yang
2020-01-20 10:01   ` Michal Hocko
2020-01-19  3:06 ` [PATCH 7/8] mm/migrate.c: move page on next iteration Wei Yang
2020-01-20 10:02   ` Michal Hocko
2020-01-21  1:22     ` Wei Yang
2020-01-21  8:43       ` Michal Hocko
2020-01-22  0:40         ` Wei Yang
2020-01-22  8:17           ` Michal Hocko
2020-01-19  3:06 ` [PATCH 8/8] mm/migrate.c: use break instead of goto out_flush Wei Yang
2020-01-20 10:03   ` Michal Hocko
2020-01-21  1:22     ` Wei Yang

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