* [PATCH] zram: use GFP_KERNEL for post-processing slot allocation
@ 2026-03-05 2:16 Sergey Senozhatsky
2026-03-05 10:05 ` Brian Geffon
0 siblings, 1 reply; 2+ messages in thread
From: Sergey Senozhatsky @ 2026-03-05 2:16 UTC (permalink / raw)
To: Andrew Morton
Cc: Minchan Kim, Brian Geffon, linux-block, linux-mm, Sergey Senozhatsky
Post-processing slot allocation used to be performed under
slot bit-lock, so gfp was restricted, then we switched to
a sleepable slot lock but gpf still remained restricted.
Drop that restriction and use GFP_KERNEL instead.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
---
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 fa38d26119ec..6a6fd08a5a15 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -297,7 +297,7 @@ static bool place_pp_slot(struct zram *zram, struct zram_pp_ctl *ctl,
struct zram_pp_slot *pps;
u32 bid;
- pps = kmalloc_obj(*pps, GFP_NOIO | __GFP_NOWARN);
+ pps = kmalloc_obj(*pps, GFP_KERNEL | __GFP_NOWARN);
if (!pps)
return false;
--
2.53.0.473.g4a7958ca14-goog
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] zram: use GFP_KERNEL for post-processing slot allocation
2026-03-05 2:16 [PATCH] zram: use GFP_KERNEL for post-processing slot allocation Sergey Senozhatsky
@ 2026-03-05 10:05 ` Brian Geffon
0 siblings, 0 replies; 2+ messages in thread
From: Brian Geffon @ 2026-03-05 10:05 UTC (permalink / raw)
To: Sergey Senozhatsky; +Cc: Andrew Morton, Minchan Kim, linux-block, linux-mm
On Wed, Mar 4, 2026 at 6:16 PM Sergey Senozhatsky
<senozhatsky@chromium.org> wrote:
>
> Post-processing slot allocation used to be performed under
> slot bit-lock, so gfp was restricted, then we switched to
> a sleepable slot lock but gpf still remained restricted.
> Drop that restriction and use GFP_KERNEL instead.
>
> Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Brian Geffon <bgeffon@google.com>
> ---
> 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 fa38d26119ec..6a6fd08a5a15 100644
> --- a/drivers/block/zram/zram_drv.c
> +++ b/drivers/block/zram/zram_drv.c
> @@ -297,7 +297,7 @@ static bool place_pp_slot(struct zram *zram, struct zram_pp_ctl *ctl,
> struct zram_pp_slot *pps;
> u32 bid;
>
> - pps = kmalloc_obj(*pps, GFP_NOIO | __GFP_NOWARN);
> + pps = kmalloc_obj(*pps, GFP_KERNEL | __GFP_NOWARN);
> if (!pps)
> return false;
>
> --
> 2.53.0.473.g4a7958ca14-goog
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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