linux-kernel - [PATCH]mm/migrate.c: clean up comment

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Date:	Sat, 07 May 2011 00:03:11 +0800
From:	"Figo.zhang" <figo1802@...il.com>
To:	lkml <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Cc:	Andrew Morton <akpm@...l.org>
Subject: [PATCH]mm/migrate.c: clean up comment


clean up comment. prepare cgroup return 0 or -ENOMEN, others return -EAGAIN.
avoid conflict meanings.

Signed-off-by: Figo.zhang <figo1802@...il.com>
---
mm/migrate.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index 34132f8..d65b351 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -647,7 +647,6 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
 		if (unlikely(split_huge_page(page)))
 			goto move_newpage;
 
-	/* prepare cgroup just returns 0 or -ENOMEM */
 	rc = -EAGAIN;
 
 	if (!trylock_page(page)) {
@@ -687,7 +686,7 @@ static int unmap_and_move(new_page_t get_new_page, unsigned long private,
 		goto unlock;
 	}
 
-	/* charge against new page */
+	/* charge against new page, return 0 or -ENOMEM */
 	charge = mem_cgroup_prepare_migration(page, newpage, &mem, GFP_KERNEL);
 	if (charge == -ENOMEM) {
 		rc = -ENOMEM;


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