From: Filipe Manana <fdmanana@suse.com>
Date: Tue, 4 Jan 2022 12:53:41 +0000
Subject: [PATCH] btrfs: remove write and wait of struct walk_control
Git-commit: c816d705b9dbc5ca870bb23e49aa9715da8384b9
Patch-mainline: v5.18-rc1
References: bsc#1207263
The ->write and ->wait fields of struct walk_control, used for log trees,
are not used since 2008, more specifically since commit d0c803c4049c5c
("Btrfs: Record dirty pages tree-log pages in an extent_io tree") and
since commit d0c803c4049c5c ("Btrfs: Record dirty pages tree-log pages in
an extent_io tree"). So just remove them, along with the function
btrfs_write_tree_block(), which is also not used anymore after removing
the ->write member.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/tree-log.c | 28 +++++-----------------------
1 file changed, 5 insertions(+), 23 deletions(-)
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 6bc8834ac8f7..be4f45eda751 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -270,12 +270,6 @@ void btrfs_end_log_trans(struct btrfs_root *root)
}
}
-static int btrfs_write_tree_block(struct extent_buffer *buf)
-{
- return filemap_fdatawrite_range(buf->pages[0]->mapping, buf->start,
- buf->start + buf->len - 1);
-}
-
static void btrfs_wait_tree_block_writeback(struct extent_buffer *buf)
{
filemap_fdatawait_range(buf->pages[0]->mapping,
@@ -294,16 +288,6 @@ struct walk_control {
*/
int free;
- /* should we write out the extent buffer? This is used
- * while flushing the log tree to disk during a sync
- */
- int write;
-
- /* should we wait for the extent buffer io to finish? Also used
- * while flushing the log tree to disk for a sync
- */
- int wait;
-
/* pin only walk, we record which extents on disk belong to the
* log trees
*/
@@ -354,17 +338,15 @@ static int process_one_buffer(struct btrfs_root *log,
return ret;
}
- if (wc->pin)
+ if (wc->pin) {
ret = btrfs_pin_extent_for_log_replay(wc->trans, eb->start,
eb->len);
+ if (ret)
+ return ret;
- if (!ret && btrfs_buffer_uptodate(eb, gen, 0)) {
- if (wc->pin && btrfs_header_level(eb) == 0)
+ if (btrfs_buffer_uptodate(eb, gen, 0) &&
+ btrfs_header_level(eb) == 0)
ret = btrfs_exclude_logged_extents(eb);
- if (wc->write)
- btrfs_write_tree_block(eb);
- if (wc->wait)
- btrfs_wait_tree_block_writeback(eb);
}
return ret;
}
--
2.26.2