+ bdi-remove-enum-wb_congested_state.patch added to mm-nonmm-unstable branch

+ bdi-remove-enum-wb_congested_state.patch added to mm-nonmm-unstable branch

[Andrew Morton]

The patch titled
     Subject: bdi: remove enum wb_congested_state
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     bdi-remove-enum-wb_congested_state.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/bdi-remove-enum-wb_congested_state.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Xiu Jianfeng <xiujianfeng@huawei.com>
Subject: bdi: remove enum wb_congested_state
Date: Tue, 19 Jul 2022 16:33:49 +0800

enum wb_congested_state and the member 'congested' in bdi_writeback are
useless since commit a88f2096d5a2 ("remove congestion tracking
framework"), so remove it.

Link: https://lkml.kernel.org/r/20220719083349.87547-1-xiujianfeng@huawei.com
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Cc: Jan Kara <jack@suse.cz>
Cc: NeilBrown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/backing-dev-defs.h |    7 -------
 1 file changed, 7 deletions(-)

--- a/include/linux/backing-dev-defs.h~bdi-remove-enum-wb_congested_state
+++ a/include/linux/backing-dev-defs.h
@@ -28,11 +28,6 @@ enum wb_state {
 	WB_start_all,		/* nr_pages == 0 (all) work pending */
 };
 
-enum wb_congested_state {
-	WB_async_congested,	/* The async (write) queue is getting full */
-	WB_sync_congested,	/* The sync queue is getting full */
-};
-
 enum wb_stat_item {
 	WB_RECLAIMABLE,
 	WB_WRITEBACK,
@@ -122,8 +117,6 @@ struct bdi_writeback {
 	atomic_t writeback_inodes;	/* number of inodes under writeback */
 	struct percpu_counter stat[NR_WB_STAT_ITEMS];
 
-	unsigned long congested;	/* WB_[a]sync_congested flags */
-
 	unsigned long bw_time_stamp;	/* last time write bw is updated */
 	unsigned long dirtied_stamp;
 	unsigned long written_stamp;	/* pages written at bw_time_stamp */
_

Patches currently in -mm which might be from xiujianfeng@huawei.com are

writeback-cleanup-inode_to_wb_is_valid.patch
bdi-remove-enum-wb_congested_state.patch