[PATCH 1/3] btrfs: cleanup EXTENT_BUFFER_READ_ERR flag

[Daniel Vacek <neelx@suse.com>]

This flag was added by commit 656f30dba7ab ("Btrfs: be aware of btree inode
write errors to avoid fs corruption") but it stopped being used after commit
046b562b20a5 ("btrfs: use a separate end_io handler for read_extent_buffer").

Signed-off-by: Daniel Vacek <neelx@suse.com>
---
 fs/btrfs/extent_io.c | 7 ++-----
 fs/btrfs/extent_io.h | 2 --
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index b168dc354f20b..578195959f7cb 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3651,12 +3651,10 @@ static void end_bbio_meta_read(struct btrfs_bio *bbio)
 	    btrfs_validate_extent_buffer(eb, &bbio->parent_check) < 0)
 		uptodate = false;
 
-	if (uptodate) {
+	if (uptodate)
 		set_extent_buffer_uptodate(eb);
-	} else {
+	else
 		clear_extent_buffer_uptodate(eb);
-		set_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags);
-	}
 
 	clear_extent_buffer_reading(eb);
 	free_extent_buffer(eb);
@@ -3695,7 +3693,6 @@ int read_extent_buffer_pages_nowait(struct extent_buffer *eb, int mirror_num,
 		return 0;
 	}
 
-	clear_bit(EXTENT_BUFFER_READ_ERR, &eb->bflags);
 	eb->read_mirror = 0;
 	check_buffer_tree_ref(eb);
 	atomic_inc(&eb->refs);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 2e261892c7bc7..fb3f5815b28e7 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -44,8 +44,6 @@ enum {
 	EXTENT_BUFFER_TREE_REF,
 	EXTENT_BUFFER_STALE,
 	EXTENT_BUFFER_WRITEBACK,
-	/* read IO error */
-	EXTENT_BUFFER_READ_ERR,
 	EXTENT_BUFFER_UNMAPPED,
 	EXTENT_BUFFER_IN_TREE,
 	/* write IO error */
-- 
2.47.2