[PATCH 09/21] bfs: drop vmtruncate

From: Marco Stornelli
Date: Sat Dec 15 2012 - 05:59:10 EST


Removed vmtruncate

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

diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index f20e8a7..ad3ea14 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -161,6 +161,14 @@ static int bfs_readpage(struct file *file, struct page *page)
return block_read_full_page(page, bfs_get_block);
}

+static void bfs_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 bfs_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -169,11 +177,8 @@ static int bfs_write_begin(struct file *file, struct address_space *mapping,

ret = block_write_begin(mapping, pos, len, flags, pagep,
bfs_get_block);
- if (unlikely(ret)) {
- loff_t isize = mapping->host->i_size;
- if (pos + len > isize)
- vmtruncate(mapping->host, isize);
- }
+ if (unlikely(ret))
+ bfs_write_failed(mapping, pos + len);

return ret;
}
--
1.7.3.4
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