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yaml
---
r: 347800
b: refs/heads/master
c: 41ddaee
h: refs/heads/master
v: v3
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Marco Stornelli authored and Al Viro committed Dec 20, 2012
1 parent 4d9d1c6 commit 997a2f5
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Showing 2 changed files with 11 additions and 6 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1dc1834f4292624f46da7e0309bc04a3cca1b07c
refs/heads/master: 41ddaeeb9d02ca12fee80b4eb23ab388b3ebe69d
15 changes: 10 additions & 5 deletions trunk/fs/bfs/file.c
Original file line number Diff line number Diff line change
Expand Up @@ -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)
Expand All @@ -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;
}
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