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From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Haoqin Huang <haoqinhuang7@gmail.com>
Cc: minchan@kernel.org, senozhatsky@chromium.org, axboe@kernel.dk,
	 terrelln@fb.com, dsterba@suse.com, akpm@linux-foundation.org,
	 linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
	rongwei.wrw@gmail.com,  Haoqin Huang <haoqinhuang@tencent.com>,
	Rongwei Wang <zigiwang@tencent.com>
Subject: Re: [PATCH 2/3] zram: add per-backend capability flags and validate parameters early
Date: Tue, 28 Jul 2026 10:27:09 +0900	[thread overview]
Message-ID: <amgE5z5QEYa5258-@google.com> (raw)
In-Reply-To: <20260627070216.13511-2-haoqinhuang7@gmail.com>

On (26/06/27 15:02), Haoqin Huang wrote:
[..]

> diff --git a/include/linux/zstd_lib.h b/include/linux/zstd_lib.h
> index e295d4125dde..f4b26844e53a 100644
> --- a/include/linux/zstd_lib.h
> +++ b/include/linux/zstd_lib.h
> @@ -1241,6 +1241,7 @@ ZSTDLIB_API size_t ZSTD_sizeof_DDict(const ZSTD_DDict* ddict);
>  #define ZSTD_SEARCHLOG_MIN        1
>  #define ZSTD_MINMATCH_MAX         7   /* only for ZSTD_fast, other strategies are limited to 6 */
>  #define ZSTD_MINMATCH_MIN         3   /* only for ZSTD_btopt+, faster strategies are limited to 4 */
> +#define ZSTD_MAX_CLEVEL		22
>  #define ZSTD_TARGETLENGTH_MAX    ZSTD_BLOCKSIZE_MAX
>  #define ZSTD_TARGETLENGTH_MIN     0   /* note : comparing this constant to an unsigned results in a tautological test */
>  #define ZSTD_STRATEGY_MIN        ZSTD_fast
> diff --git a/lib/zstd/compress/clevels.h b/lib/zstd/compress/clevels.h
> index 6ab8be6532ef..db3b275b502e 100644
> --- a/lib/zstd/compress/clevels.h
> +++ b/lib/zstd/compress/clevels.h
> @@ -17,7 +17,6 @@
>  
>  /*-=====  Pre-defined compression levels  =====-*/
>  
> -#define ZSTD_MAX_CLEVEL     22
>  
>  __attribute__((__unused__))

I think the zstd part wants to be a separate patch as well.

  parent reply	other threads:[~2026-07-28  1:27 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-27  7:02 [PATCH 1/3] zram: fix zstd dict use-after-free on per-CPU error path Haoqin Huang
2026-06-27  7:02 ` [PATCH 2/3] zram: add per-backend capability flags and validate parameters early Haoqin Huang
2026-07-24  5:27   ` Sergey Senozhatsky
2026-07-27 16:50     ` haoqin huang
2026-07-28  1:19       ` Sergey Senozhatsky
2026-07-28  9:07         ` haoqin huang
2026-07-28  1:27   ` Sergey Senozhatsky [this message]
2026-07-28  9:09     ` haoqin huang
2026-06-27  7:02 ` [PATCH 3/3] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-07-24  5:19   ` Sergey Senozhatsky
2026-07-07  7:19 ` [PATCH 1/3] zram: fix zstd dict use-after-free on per-CPU error path Sergey Senozhatsky
2026-07-24  5:17 ` Sergey Senozhatsky
2026-07-27 16:06   ` haoqin huang
2026-07-28  1:21     ` Sergey Senozhatsky
2026-07-28  9:29 ` [PATCH v2 1/5] zram: fix early release of global cdict/ddict in " Haoqin Huang
2026-07-28  9:29   ` [PATCH v2 2/5] zram: make dict update in comp_params_store() atomic Haoqin Huang
2026-07-29  2:30     ` Sergey Senozhatsky
2026-07-29  4:06       ` haoqin huang
2026-07-29  4:16         ` Sergey Senozhatsky
2026-07-29  4:25           ` haoqin huang
2026-07-28  9:29   ` [PATCH v2 3/5] zstd: move ZSTD_MAX_CLEVEL to zstd_lib.h Haoqin Huang
2026-07-29  3:03     ` Sergey Senozhatsky
2026-07-29  4:16       ` haoqin huang
2026-07-29  4:22         ` Sergey Senozhatsky
2026-07-29  4:32           ` haoqin huang
2026-07-29  4:49             ` Sergey Senozhatsky
2026-07-30  2:48               ` haoqin huang
2026-07-28  9:29   ` [PATCH v2 4/5] zram: add per-backend caps and validate parameters early Haoqin Huang
2026-07-29  2:26     ` Sergey Senozhatsky
2026-07-29  3:53       ` haoqin huang
2026-07-28  9:29   ` [PATCH v2 5/5] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-07-29  0:34   ` [PATCH v2 1/5] zram: fix early release of global cdict/ddict in per-CPU error path Andrew Morton
2026-07-29  2:49     ` Sergey Senozhatsky
2026-07-29  3:33     ` haoqin huang
2026-07-29  2:20   ` Sergey Senozhatsky
2026-07-29  3:40     ` haoqin huang
2026-07-29  2:40   ` Sergey Senozhatsky
2026-07-30  2:52   ` [PATCH v3 0/5] zram: fix zstd per-CPU error path and add parameter validation Haoqin Huang
2026-07-30  2:52     ` [PATCH v3 1/5] zram: do not release zstd params in per-CPU error path Haoqin Huang
2026-07-30  2:52     ` [PATCH v3 2/5] zram: reject zero-size dictionary Haoqin Huang
2026-07-30  2:52     ` [PATCH v3 3/5] zram: add level validation in zstd setup_params Haoqin Huang
2026-07-30  3:10       ` Sergey Senozhatsky
2026-07-30  5:55         ` haoqin huang
2026-07-30  2:52     ` [PATCH v3 4/5] zram: add per-backend caps and validate parameters early Haoqin Huang
2026-07-30  3:14       ` Sergey Senozhatsky
2026-07-30  5:57         ` haoqin huang
2026-07-30  2:52     ` [PATCH v3 5/5] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-07-30  6:01     ` [PATCH v4 0/4] zram: fix zstd per-CPU error path and add parameter validation Haoqin Huang
2026-07-30  6:01       ` [PATCH v4 1/4] zram: do not release zstd params in per-CPU error path Haoqin Huang
2026-07-30  6:01       ` [PATCH v4 2/4] zram: reject zero-size dictionary Haoqin Huang
2026-07-30  7:00         ` Sergey Senozhatsky
2026-07-30  6:01       ` [PATCH v4 3/4] zram: validate parameters in each backend's setup_params Haoqin Huang
2026-07-30  7:24         ` Sergey Senozhatsky
2026-08-03 12:20           ` haoqin huang
2026-08-04  4:42             ` Sergey Senozhatsky
2026-08-05  1:26               ` Jaegeuk Kim
2026-07-30  7:35         ` Sergey Senozhatsky
2026-07-30  6:01       ` [PATCH v4 4/4] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-07-30  7:28         ` Sergey Senozhatsky
2026-08-03 14:12       ` [PATCH v5 0/4] zram: fix zstd error paths and add parameter validation Haoqin Huang
2026-08-03 14:12         ` [PATCH v5 1/4] zram: do not release zstd global params from error paths Haoqin Huang
2026-08-03 14:12         ` [PATCH v5 2/4] zram: reject zero-size dictionary Haoqin Huang
2026-08-04  5:32           ` Sergey Senozhatsky
2026-08-04  7:15             ` haoqin huang
2026-08-03 14:12         ` [PATCH v5 3/4] zram: validate parameters in each backend's setup_params Haoqin Huang
2026-08-04  5:36           ` Sergey Senozhatsky
2026-08-04  7:02             ` haoqin huang
2026-08-04  8:30               ` Sergey Senozhatsky
2026-08-04  5:48           ` Sergey Senozhatsky
2026-08-04  7:13             ` haoqin huang
2026-08-04  8:28               ` Sergey Senozhatsky
2026-08-03 14:12         ` [PATCH v5 4/4] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-08-04  9:38         ` [PATCH v6 0/5] zram: fix zstd error paths and add parameter validation Haoqin Huang
2026-08-04  9:38           ` [PATCH v6 1/5] zram: do not release zstd global params from error paths Haoqin Huang
2026-08-04  9:38           ` [PATCH v6 2/5] zram: reject zero-size dictionary Haoqin Huang
2026-08-04  9:38           ` [PATCH v6 3/5] zram: add pr_fmt to backend files Haoqin Huang
2026-08-04  9:38           ` [PATCH v6 4/5] zram: validate parameters in each backend's setup_params Haoqin Huang
2026-08-04  9:38           ` [PATCH v6 5/5] zram: reset per-priority params when changing algorithm before init Haoqin Huang
2026-08-04  9:53           ` [PATCH v6 0/5] zram: fix zstd error paths and add parameter validation Sergey Senozhatsky
2026-08-04  9:55             ` Sergey Senozhatsky
2026-08-04 19:55           ` Andrew Morton

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