linux-kernel - [RFC PATCH V3 05/10] f2fs: use attach/detach_page

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Message-Id: <20200507214400.15785-6-guoqing.jiang@cloud.ionos.com>
Date:   Thu,  7 May 2020 23:43:55 +0200
From:   Guoqing Jiang <guoqing.jiang@...ud.ionos.com>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     david@...morbit.com, hch@...radead.org, willy@...radead.org,
        Guoqing Jiang <guoqing.jiang@...ud.ionos.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>, Chao Yu <chao@...nel.org>,
        linux-f2fs-devel@...ts.sourceforge.net
Subject: [RFC PATCH V3 05/10] f2fs: use attach/detach_page_private

Since the new pair function is introduced, we can call them to clean the
code in f2fs.h.

Cc: Jaegeuk Kim <jaegeuk@...nel.org>
Cc: Chao Yu <chao@...nel.org>
Cc: linux-f2fs-devel@...ts.sourceforge.net
Acked-by: Chao Yu <yuchao0@...wei.com>
Signed-off-by: Guoqing Jiang <guoqing.jiang@...ud.ionos.com>
---
RFC V2 -> RFC V3
1. rename clear_page_private to detach_page_private.

RFC -> RFC V2
1. change the name of new functions to attach/clear_page_private.

 fs/f2fs/f2fs.h | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ba470d5687fe..6920d1a88289 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -3051,19 +3051,12 @@ static inline void f2fs_set_page_private(struct page *page,
 	if (PagePrivate(page))
 		return;
 
-	get_page(page);
-	SetPagePrivate(page);
-	set_page_private(page, data);
+	attach_page_private(page, (void *)data);
 }
 
 static inline void f2fs_clear_page_private(struct page *page)
 {
-	if (!PagePrivate(page))
-		return;
-
-	set_page_private(page, 0);
-	ClearPagePrivate(page);
-	f2fs_put_page(page, 0);
+	detach_page_private(page);
 }
 
 /*
-- 
2.17.1