Hi all,

Today's linux-next merge of the folio tree got conflicts in:

  fs/btrfs/ctree.h
  fs/btrfs/inode.c

between commit:

  a3e4d924b41d ("btrfs: move btrfs_readpage to extent_io.c")

from the btrfs tree and commit:

  5a912a9c68ac ("btrfs: Convert btrfs to read_folio")

from the folio tree.

I fixed it up (I used the conflicting parts of the above files from the
former and applied the below patch) and can carry the fix as necessary.
This is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 2 May 2022 17:21:26 +1000
Subject: [PATCH] fix up for "btrfs: move btrfs_readpage to extent_io.c"

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 fs/btrfs/extent_io.c | 3 ++-
 fs/btrfs/extent_io.h | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 5de09556b1c3..aa8905a0d63a 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3792,8 +3792,9 @@ static int btrfs_do_readpage(struct page *page, struct extent_map **em_cached,
 	return ret;
 }
 
-int btrfs_readpage(struct file *file, struct page *page)
+int btrfs_read_folio(struct file *file, struct folio *folio)
 {
+	struct page *page = &folio->page;
 	struct btrfs_inode *inode = BTRFS_I(page->mapping->host);
 	u64 start = page_offset(page);
 	u64 end = start + PAGE_SIZE - 1;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 375a721c48eb..4a2205fd189a 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -166,7 +166,7 @@ typedef struct extent_map *(get_extent_t)(struct btrfs_inode *inode,
 int try_release_extent_mapping(struct page *page, gfp_t mask);
 int try_release_extent_buffer(struct page *page);
 
-int btrfs_readpage(struct file *file, struct page *page);
+int btrfs_read_folio(struct file *file, struct folio *folio);
 int extent_write_full_page(struct page *page, struct writeback_control *wbc);
 int extent_write_locked_range(struct inode *inode, u64 start, u64 end);
 int extent_writepages(struct address_space *mapping,
-- 
2.35.1

-- 
Cheers,
Stephen Rothwell