From 2d5ac130fa498d66d91c3aa46c0f87e63664d9e9 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 3 Jun 2022 09:11:01 +0200
Subject: [PATCH] btrfs: don't use bio->bi_private to pass the inode to
submit_one_bio
submit_one_bio is only used for page cache I/O, so the inode can be
trivially derived from the first page in the bio.
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/extent_io.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 5efe25bbee5e0..361b18d136c0c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -181,10 +181,7 @@ static int add_extent_changeset(struct extent_state *state, u32 bits,
static void submit_one_bio(struct bio *bio, int mirror_num,
enum btrfs_compression_type compress_type)
{
- struct extent_io_tree *tree = bio->bi_private;
- struct inode *inode = tree->private_data;
-
- bio->bi_private = NULL;
+ struct inode *inode = bio_first_page_all(bio)->mapping->host;
/* Caller should ensure the bio has at least some range added */
ASSERT(bio->bi_iter.bi_size);
@@ -3362,7 +3359,6 @@ static int alloc_new_bio(struct btrfs_inode *inode,
bio_ctrl->bio = bio;
bio_ctrl->compress_type = compress_type;
bio->bi_end_io = end_io_func;
- bio->bi_private = &inode->io_tree;
bio->bi_opf = opf;
ret = calc_bio_boundaries(bio_ctrl, inode, file_offset);
if (ret < 0)
--
2.30.2