The patch titled
Subject: zram: show zsmalloc objs_moved stat in mm_stat
has been added to the -mm mm-unstable branch. Its filename is
zram-show-zsmalloc-objs_moved-stat-in-mm_stat.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zram-show-zsmalloc-objs_moved-stat-in-mm_stat.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Subject: zram: show zsmalloc objs_moved stat in mm_stat
Date: Thu, 23 Feb 2023 12:04:51 +0900
Extend zram mm_show with new objs_moved zs_pool_stats.
Link: https://lkml.kernel.org/r/20230223030451.543162-7-senozhatsky@xxxxxxxxxxxx
Signed-off-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Yosry Ahmed <yosryahmed@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/admin-guide/blockdev/zram.rst | 1 +
drivers/block/zram/zram_drv.c | 5 +++--
2 files changed, 4 insertions(+), 2 deletions(-)
--- a/Documentation/admin-guide/blockdev/zram.rst~zram-show-zsmalloc-objs_moved-stat-in-mm_stat
+++ a/Documentation/admin-guide/blockdev/zram.rst
@@ -267,6 +267,7 @@ line of text and contains the following
pages_compacted the number of pages freed during compaction
huge_pages the number of incompressible pages
huge_pages_since the number of incompressible pages since zram set up
+ objs_moved The number of objects moved during pool compaction
================ =============================================================
File /sys/block/zram<id>/bd_stat
--- a/drivers/block/zram/zram_drv.c~zram-show-zsmalloc-objs_moved-stat-in-mm_stat
+++ a/drivers/block/zram/zram_drv.c
@@ -1223,7 +1223,7 @@ static ssize_t mm_stat_show(struct devic
max_used = atomic_long_read(&zram->stats.max_used_pages);
ret = scnprintf(buf, PAGE_SIZE,
- "%8llu %8llu %8llu %8lu %8ld %8llu %8lu %8llu %8llu\n",
+ "%8llu %8llu %8llu %8lu %8ld %8llu %8lu %8llu %8llu %8llu\n",
orig_size << PAGE_SHIFT,
(u64)atomic64_read(&zram->stats.compr_data_size),
mem_used << PAGE_SHIFT,
@@ -1232,7 +1232,8 @@ static ssize_t mm_stat_show(struct devic
(u64)atomic64_read(&zram->stats.same_pages),
atomic_long_read(&pool_stats.pages_compacted),
(u64)atomic64_read(&zram->stats.huge_pages),
- (u64)atomic64_read(&zram->stats.huge_pages_since));
+ (u64)atomic64_read(&zram->stats.huge_pages_since),
+ (u64)atomic64_read(&pool_stats.objs_moved));
up_read(&zram->init_lock);
return ret;
_
Patches currently in -mm which might be from senozhatsky@xxxxxxxxxxxx are
zsmalloc-remove-insert_zspage-inuse-optimization.patch
zsmalloc-remove-stat-and-fullness-enums.patch
zsmalloc-fine-grained-inuse-ratio-based-fullness-grouping.patch
zsmalloc-rework-compaction-algorithm.patch
zsmalloc-extend-compaction-statistics.patch
zram-show-zsmalloc-objs_moved-stat-in-mm_stat.patch
