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Btrfs: fix arguments to btrfs_wait_on_page_writeback_range

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wait_on_page_writeback_range/btrfs_wait_on_page_writeback_range takes
a pagecache offset, not a byte offset into the file.  Shift the arguments
around to wait for the correct range

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Christoph Hellwig 2009-09-30 16:47:08 -04:00 committed by Chris Mason
parent dd7e0b7b02
commit 35d62a942d
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/disk-io.c
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@ -829,7 +829,9 @@ int btrfs_write_tree_block(struct extent_buffer *buf)
int btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
{
return btrfs_wait_on_page_writeback_range(buf->first_page->mapping,
buf->start, buf->start + buf->len - 1);
buf->start >> PAGE_CACHE_SHIFT,
(buf->start + buf->len - 1) >>
PAGE_CACHE_SHIFT);
}
struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,