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Commit 35d62a94 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Chris Mason
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Btrfs: fix arguments to btrfs_wait_on_page_writeback_range 



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: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent dd7e0b7b

fs/btrfs/disk-io.c

+3 −1
Original line number Diff line number Diff line
@@ -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,