The patch titled
Subject: zram-add-bd_stat-statistics-v4
has been added to the -mm tree. Its filename is
zram-add-bd_stat-statistics-v4.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/zram-add-bd_stat-statistics-v4.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/zram-add-bd_stat-statistics-v4.patch
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------------------------------------------------------
From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: zram-add-bd_stat-statistics-v4
bd_stat represents things happened in backing device. Currently, it
supports bd_counts, bd_reads and bd_writes which are helpful to understand
wearout of flash and memory saving.
Link: http://lkml.kernel.org/r/20181203024045.153534-7-minchan@xxxxxxxxxx
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Joey Pabalinas <joeypabalinas@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/block/zram/zram_drv.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/block/zram/zram_drv.c~zram-add-bd_stat-statistics-v4
+++ a/drivers/block/zram/zram_drv.c
@@ -1026,10 +1026,10 @@ static ssize_t bd_stat_show(struct devic
down_read(&zram->init_lock);
ret = scnprintf(buf, PAGE_SIZE,
- "%8llu %8llu %8llu\n",
- (u64)atomic64_read(&zram->stats.bd_count),
- (u64)atomic64_read(&zram->stats.bd_reads),
- (u64)atomic64_read(&zram->stats.bd_writes));
+ "%8llu %8llu %8llu\n",
+ (u64)atomic64_read(&zram->stats.bd_count) * (PAGE_SHIFT - 12),
+ (u64)atomic64_read(&zram->stats.bd_reads) * (PAGE_SHIFT - 12),
+ (u64)atomic64_read(&zram->stats.bd_writes) * (PAGE_SHIFT - 12));
up_read(&zram->init_lock);
return ret;
_
Patches currently in -mm which might be from minchan@xxxxxxxxxx are
zram-fix-lockdep-warning-of-free-block-handling.patch
zram-fix-double-free-backing-device.patch
zram-refactoring-flags-and-writeback-stuff.patch
zram-introduce-zram_idle-flag.patch
zram-support-idle-huge-page-writeback.patch
zram-add-bd_stat-statistics.patch
zram-add-bd_stat-statistics-v4.patch
zram-writeback-throttle.patch
zram-writeback-throttle-v4.patch
