linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Nitin Gupta <ngupta@vflare.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: Re: [PATCHv4 7/9] zram: add pages_per_pool_page device attribute
Date: Wed, 9 Nov 2022 13:34:25 +0900	[thread overview]
Message-ID: <Y2st0b00KHTK0nrI@google.com> (raw)
In-Reply-To: <20221031054108.541190-8-senozhatsky@chromium.org>

On (22/10/31 14:41), Sergey Senozhatsky wrote:
[..]
>  	zram->mem_pool = zs_create_pool(zram->disk->disk_name,
> -					ZS_DEFAULT_PAGES_PER_ZSPAGE);
> +					zram->pages_per_pool_page);
>  	if (!zram->mem_pool) {
>  		vfree(zram->table);
>  		return false;
> @@ -2174,6 +2213,7 @@ static DEVICE_ATTR_RW(writeback_limit_enable);
>  static DEVICE_ATTR_RW(recomp_algorithm);
>  static DEVICE_ATTR_WO(recompress);
>  #endif
> +static DEVICE_ATTR_RW(pages_per_pool_page);

May be we can have a more generic "allocator_tunables" device attribute,
which will support named parameters instead. E.g.

	pool_page_len_limit=INT

And more in the future.

Having hard times coming up with good names here. max_pages_per_zspage
is too low level and exposes zsmalloc internals, while in theory zram
can use different allocators at some point, and those allocators can
have different tunables.

  reply	other threads:[~2022-11-09  4:34 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-31  5:40 [PATCHv4 0/9] zsmalloc/zram: configurable zspage size Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 1/9] zram: add size class equals check into recompression Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 2/9] zsmalloc: turn zspage order into runtime variable Sergey Senozhatsky
2022-11-10 21:59   ` Minchan Kim
2022-11-11 10:38     ` Sergey Senozhatsky
2022-11-11 17:09       ` Minchan Kim
2022-11-14  3:55         ` Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 3/9] zsmalloc: move away from page order defines Sergey Senozhatsky
2022-11-10 22:02   ` Minchan Kim
2022-10-31  5:41 ` [PATCHv4 4/9] zsmalloc: make huge class watermark zs_pool member Sergey Senozhatsky
2022-11-10 22:25   ` Minchan Kim
2022-11-11  1:07     ` Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 5/9] zram: huge size watermark cannot be global Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 6/9] zsmalloc: pass limit on pages per-zspage to zs_create_pool() Sergey Senozhatsky
2022-11-09  6:24   ` Sergey Senozhatsky
2022-11-11 17:14     ` Minchan Kim
2022-11-11  2:10   ` Minchan Kim
2022-11-11 10:32     ` Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 7/9] zram: add pages_per_pool_page device attribute Sergey Senozhatsky
2022-11-09  4:34   ` Sergey Senozhatsky [this message]
2022-10-31  5:41 ` [PATCHv4 8/9] Documentation: document zram pages_per_pool_page attribute Sergey Senozhatsky
2022-11-11  2:20   ` Minchan Kim
2022-11-11 10:34     ` Sergey Senozhatsky
2022-10-31  5:41 ` [PATCHv4 9/9] zsmalloc: break out of loop when found perfect zspage order Sergey Senozhatsky
2022-11-10 22:44 ` [PATCHv4 0/9] zsmalloc/zram: configurable zspage size Minchan Kim
2022-11-11  0:56   ` Sergey Senozhatsky
2022-11-11 17:03     ` Minchan Kim
2022-11-14  3:53       ` Sergey Senozhatsky
2022-11-14  7:55       ` Sergey Senozhatsky
2022-11-14  8:37       ` Sergey Senozhatsky
2022-11-15  6:01       ` Sergey Senozhatsky
2022-11-15  7:59         ` Sergey Senozhatsky
2022-11-15 23:23           ` Minchan Kim
2022-11-16  0:52             ` Sergey Senozhatsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Y2st0b00KHTK0nrI@google.com \
    --to=senozhatsky@chromium.org \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=minchan@kernel.org \
    --cc=ngupta@vflare.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).