The patch titled
Subject: mm/migrate.c: call detach_page_private to cleanup code
has been added to the -mm tree. Its filename is
mm-migratec-call-detach_page_private-to-cleanup-code.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-migratec-call-detach_page_private-to-cleanup-code.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-migratec-call-detach_page_private-to-cleanup-code.patch
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------------------------------------------------------
From: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
Subject: mm/migrate.c: call detach_page_private to cleanup code
We can cleanup code a little by call detach_page_private here.
Link: http://lkml.kernel.org/r/20200519214049.15179-1-guoqing.jiang@xxxxxxxxxxxxxxx
Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
Cc: Chao Yu <yuchao0@xxxxxxxxxx>
Cc: Cong Wang <xiyou.wangcong@xxxxxxxxx>
Cc: Dave Chinner <dchinner@xxxxxxxxxx>
Cc: Eric Biggers <ebiggers@xxxxxxxxxx>
Cc: Gao Xiang <gaoxiang25@xxxxxxxxxx>
Cc: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Cc: John Hubbard <jhubbard@xxxxxxxxxx>
Cc: Joseph Qi <joseph.qi@xxxxxxxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Cc: Zi Yan <ziy@xxxxxxxxxx>
Cc: Johannes Thumshirn <johannes.thumshirn@xxxxxxx>
Cc: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/mm/migrate.c~mm-migratec-call-detach_page_private-to-cleanup-code
+++ a/mm/migrate.c
@@ -797,10 +797,7 @@ recheck_buffers:
if (rc != MIGRATEPAGE_SUCCESS)
goto unlock_buffers;
- ClearPagePrivate(page);
- set_page_private(newpage, page_private(page));
- set_page_private(page, 0);
- put_page(page);
+ set_page_private(newpage, (unsigned long)detach_page_private(page));
get_page(newpage);
bh = head;
_
Patches currently in -mm which might be from guoqing.jiang@xxxxxxxxxxxxxxx are
include-linux-pagemaph-introduce-attach-detach_page_private.patch
md-remove-__clear_page_buffers-and-use-attach-detach_page_private.patch
btrfs-use-attach-detach_page_private.patch
fs-bufferc-use-attach-detach_page_private.patch
f2fs-use-attach-detach_page_private.patch
iomap-use-attach-detach_page_private.patch
ntfs-replace-attach_page_buffers-with-attach_page_private.patch
orangefs-use-attach-detach_page_private.patch
buffer_headh-remove-attach_page_buffers.patch
mm-migratec-call-detach_page_private-to-cleanup-code.patch
