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 <h...@lst.de>
Index: linux-2.6/fs/btrfs/disk-io.c
===================================================================
--- linux-2.6.orig/fs/btrfs/disk-io.c 2009-09-30 13:54:10.101028559 -0300
+++ linux-2.6/fs/btrfs/disk-io.c 2009-09-30 13:55:25.396005824 -0300
@@ -829,7 +829,9 @@ int btrfs_write_tree_block(struct extent
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,
--
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