From 309f77ad9bea057d55b04580b5a711e9e3727e83 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@gmail.com>
Date: Mon, 25 Oct 2010 15:01:12 +0900
Subject: [PATCH] fs/buffer.c: call __block_write_begin() if we have page

If we have the appropriate page already, call __block_write_begin()
directly instead of releasing and regrabbing it inside of
block_write_begin().

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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