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Message-Id: <1286208220-5151-1-git-send-email-namhyung@gmail.com>
Date: Tue, 5 Oct 2010 01:03:40 +0900
From: Namhyung Kim <namhyung@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>, Jan Kara <jack@...e.cz>
Cc: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] jbd: Use offset_in_page() instead of manual calculation
Signed-off-by: Namhyung Kim <namhyung@...il.com>
---
fs/jbd/transaction.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 981449c..c9bb7a7 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -711,7 +711,7 @@ done:
J_EXPECT_JH(jh, buffer_uptodate(jh2bh(jh)),
"Possible IO failure.\n");
page = jh2bh(jh)->b_page;
- offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
+ offset = offset_in_page(jh2bh(jh)->b_data);
source = kmap_atomic(page, KM_USER0);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
kunmap_atomic(source, KM_USER0);
--
1.7.0.4
--
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