btrfs: Remove redundant tree argument from extent_readpages

This function is called only from btrfs_readpage and is already passed
the mapping. Simplify its signature by moving the code obtaining
reference to the extent tree in the function. No functional changes.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 6853cd836a41..53ba8e8f1148 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8907,10 +8907,9 @@ static int
 btrfs_readpages(struct file *file, struct address_space *mapping,
                 struct list_head *pages, unsigned nr_pages)
 {
-        struct extent_io_tree *tree;
-        tree = &BTRFS_I(mapping->host)->io_tree;
-        return extent_readpages(tree, mapping, pages, nr_pages);
+        return extent_readpages(mapping, pages, nr_pages);
 }
+
 static int __btrfs_releasepage(struct page *page, gfp_t gfp_flags)
 {
         int ret = try_release_extent_mapping(page, gfp_flags);