diff options
| author | Chris Mason <chris.mason@oracle.com> | 2007-12-14 12:56:58 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | e9906a98497c26a3c1a7532b51b81cc1fbdf9e1d (patch) | |
| tree | 6c61b8d79f865ed7c06e26e6b8853f5a87b4efea /fs/btrfs/inode.c | |
| parent | 6e3b96668eb34da6060a5189e6a73e9d62a3b178 (diff) | |
| download | lwn-e9906a98497c26a3c1a7532b51b81cc1fbdf9e1d.tar.gz lwn-e9906a98497c26a3c1a7532b51b81cc1fbdf9e1d.zip | |
Fixes for loopback files in btrfs
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 41b0c7de7a59..e535c50e669b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1893,8 +1893,19 @@ static void btrfs_truncate(struct inode *inode) int btrfs_commit_write(struct file *file, struct page *page, unsigned from, unsigned to) { - return extent_commit_write(&BTRFS_I(page->mapping->host)->extent_tree, - page->mapping->host, page, from, to); + loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to; + struct inode *inode = page->mapping->host; + + btrfs_cow_one_page(inode, page, PAGE_CACHE_SIZE); + + set_page_extent_mapped(page); + set_page_dirty(page); + + if (pos > inode->i_size) { + i_size_write(inode, pos); + mark_inode_dirty(inode); + } + return 0; } static int create_subvol(struct btrfs_root *root, char *name, int namelen) |