[merged mm-stable] zram-remove-writestall-zram_stats-member.patch removed from -mm tree

[merged mm-stable] zram-remove-writestall-zram_stats-member.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: zram: remove writestall zram_stats member
has been removed from the -mm tree.  Its filename was
     zram-remove-writestall-zram_stats-member.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: zram: remove writestall zram_stats member
Date: Mon, 3 Mar 2025 11:03:16 +0900

There is no zsmalloc handle allocation slow path now and writestall is not
possible any longer.  Remove it from zram_stats.

Link: https://lkml.kernel.org/r/20250303022425.285971-8-senozhatsky@chromium.org
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Hillf Danton <hdanton@sina.com>
Cc: Kairui Song <ryncsn@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Yosry Ahmed <yosry.ahmed@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/block/zram/zram_drv.c |    3 +--
 drivers/block/zram/zram_drv.h |    1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/block/zram/zram_drv.c~zram-remove-writestall-zram_stats-member
+++ a/drivers/block/zram/zram_drv.c
@@ -1437,9 +1437,8 @@ static ssize_t debug_stat_show(struct de
 
 	down_read(&zram->init_lock);
 	ret = scnprintf(buf, PAGE_SIZE,
-			"version: %d\n%8llu %8llu\n",
+			"version: %d\n0 %8llu\n",
 			version,
-			(u64)atomic64_read(&zram->stats.writestall),
 			(u64)atomic64_read(&zram->stats.miss_free));
 	up_read(&zram->init_lock);
 
--- a/drivers/block/zram/zram_drv.h~zram-remove-writestall-zram_stats-member
+++ a/drivers/block/zram/zram_drv.h
@@ -82,7 +82,6 @@ struct zram_stats {
 	atomic64_t huge_pages_since;	/* no. of huge pages since zram set up */
 	atomic64_t pages_stored;	/* no. of pages currently stored */
 	atomic_long_t max_used_pages;	/* no. of maximum pages stored */
-	atomic64_t writestall;		/* no. of write slow paths */
 	atomic64_t miss_free;		/* no. of missed free */
 #ifdef	CONFIG_ZRAM_WRITEBACK
 	atomic64_t bd_count;		/* no. of pages in backing device */
_

Patches currently in -mm which might be from senozhatsky@chromium.org are