* [PATCH] zram: fix 32-bit atomic_long_t print
@ 2023-02-27 8:56 Arnd Bergmann
2023-02-27 22:19 ` Andrew Morton
0 siblings, 1 reply; 2+ messages in thread
From: Arnd Bergmann @ 2023-02-27 8:56 UTC (permalink / raw)
To: Minchan Kim, Sergey Senozhatsky, Jens Axboe, Andrew Morton
Cc: Arnd Bergmann, Jan Kara, Alexey Romanov, Brian Geffon,
linux-kernel, linux-block
From: Arnd Bergmann <arnd@arndb.de>
The type used to print &pool_stats.objs_moved is inconsistent with the
definition:
drivers/block/zram/zram_drv.c: In function 'mm_stat_show':
drivers/block/zram/zram_drv.c:1234:44: error: passing argument 1 of 'atomic64_read' from incompatible pointer type [-Werror=incompatible-pointer-types]
Change the printing code to match.
Fixes: b7d89654a988 ("zram: show zsmalloc objs_moved stat in mm_stat")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/block/zram/zram_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 3194e9254c6f..5c4ac0d3e850 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1231,7 +1231,7 @@ static ssize_t mm_stat_show(struct device *dev,
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(&pool_stats.objs_moved));
+ (u64)atomic_long_read(&pool_stats.objs_moved));
up_read(&zram->init_lock);
return ret;
--
2.39.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] zram: fix 32-bit atomic_long_t print
2023-02-27 8:56 [PATCH] zram: fix 32-bit atomic_long_t print Arnd Bergmann
@ 2023-02-27 22:19 ` Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2023-02-27 22:19 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Minchan Kim, Sergey Senozhatsky, Jens Axboe, Arnd Bergmann,
Jan Kara, Alexey Romanov, Brian Geffon, linux-kernel,
linux-block
On Mon, 27 Feb 2023 09:56:21 +0100 Arnd Bergmann <arnd@kernel.org> wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> The type used to print &pool_stats.objs_moved is inconsistent with the
> definition:
>
> drivers/block/zram/zram_drv.c: In function 'mm_stat_show':
> drivers/block/zram/zram_drv.c:1234:44: error: passing argument 1 of 'atomic64_read' from incompatible pointer type [-Werror=incompatible-pointer-types]
>
> Change the printing code to match.
>
> Fixes: b7d89654a988 ("zram: show zsmalloc objs_moved stat in mm_stat")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> drivers/block/zram/zram_drv.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
> index 3194e9254c6f..5c4ac0d3e850 100644
> --- a/drivers/block/zram/zram_drv.c
> +++ b/drivers/block/zram/zram_drv.c
> @@ -1231,7 +1231,7 @@ static ssize_t mm_stat_show(struct device *dev,
> 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(&pool_stats.objs_moved));
> + (u64)atomic_long_read(&pool_stats.objs_moved));
> up_read(&zram->init_lock);
>
> return ret;
Thanks. I'm using the slightly different fix from Geert:
https://lkml.kernel.org/r/20230225121523.3288544-1-geert+renesas@glider.be
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