btrfs: remove btrfs_set_range_writeback()

The function btrfs_set_range_writeback() was originally a callback for
metadata and data, to mark a range with writeback flag.

Then it was converted into a common function call for both metadata and
data.

From the very beginning, the function had been only called on a full page,
later converted to handle range inside a page.

But it never needed to handle multiple pages, and since commit
8189197425e7 ("btrfs: refactor __extent_writepage_io() to do
sector-by-sector submission") the function was only called on a
sector-by-sector basis.

This makes the function unnecessary, and can be converted to a simple
btrfs_folio_set_writeback() call instead.

Signed-off-by: Qu Wenruo <[email protected]>
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: David Sterba <[email protected]>

1 files changed, 0 insertions, 1 deletions

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index e152fde888fc..c514bab532fa 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -577,7 +577,6 @@ void btrfs_merge_delalloc_extent(struct btrfs_inode *inode, struct extent_state
 				 struct extent_state *other);
 void btrfs_split_delalloc_extent(struct btrfs_inode *inode,
 				 struct extent_state *orig, u64 split);
-void btrfs_set_range_writeback(struct btrfs_inode *inode, u64 start, u64 end);
 void btrfs_evict_inode(struct inode *inode);
 struct inode *btrfs_alloc_inode(struct super_block *sb);
 void btrfs_destroy_inode(struct inode *inode);