linux-kernel - [PATCH 01/21] ufs: drop vmtruncate

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Message-ID: <5094E247.5010602@gmail.com>
Date:	Sat, 03 Nov 2012 10:22:15 +0100
From:	Marco Stornelli <marco.stornelli@...il.com>
To:	unlisted-recipients:; (no To-header on input)
CC:	Evgeniy Dushistov <dushistov@...l.ru>, linux-kernel@...r.kernel.org
Subject: [PATCH 01/21] ufs: drop vmtruncate

Removed vmtruncate

Signed-off-by: Marco Stornelli <marco.stornelli@...il.com>
---
 fs/ufs/inode.c |   15 ++++++++++-----
 1 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index eb6d0b7..ff24e44 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -526,6 +526,14 @@ int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len)
 	return __block_write_begin(page, pos, len, ufs_getfrag_block);
 }
 
+static void ufs_write_failed(struct address_space *mapping, loff_t to)
+{
+	struct inode *inode = mapping->host;
+
+	if (to > inode->i_size)
+		truncate_pagecache(inode, to, inode->i_size);
+}
+
 static int ufs_write_begin(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned flags,
 			struct page **pagep, void **fsdata)
@@ -534,11 +542,8 @@ static int ufs_write_begin(struct file *file, struct address_space *mapping,
 
 	ret = block_write_begin(mapping, pos, len, flags, pagep,
 				ufs_getfrag_block);
-	if (unlikely(ret)) {
-		loff_t isize = mapping->host->i_size;
-		if (pos + len > isize)
-			vmtruncate(mapping->host, isize);
-	}
+	if (unlikely(ret))
+		ufs_write_failed(mapping, pos + len);
 
 	return ret;
 }
-- 
1.7.3.4
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