From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Bo Zhang <zhangbo0325@gmail.com>
Cc: baohua@kernel.org, senozhatsky@chromium.org,
akpm@linux-foundation.org, bgeffon@google.com,
minchan@kernel.org, richardycc@google.com,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH v3 10/11] zram: use rw_semaphore for decompression streams
Date: Thu, 15 Oct 2026 12:24:08 +0900 [thread overview]
Message-ID: <atBHDEBCVL6Ae0hT@google.com> (raw)
In-Reply-To: <20261015031940.1410875-1-zhangbo56@xiaomi.com>
On (26/10/15 11:19), Bo Zhang wrote:
> I'll also apply Sergey's vm_map_ram() patch (with the memalloc_noio
> fixup) and re-run on-device. Note this only helps the cross-page part
> of our exclusive reads on a stateless backend like lzo-rle; it won't
> change zstd/deflate, which stay exclusive regardless because of
> create_dctx. Will report the numbers separately.
Thanks. I just sent another patch. vm_map_ram() is a little of a
hard sell, I guess, because of TLBs. kmalloc() patch doesn't seem
to be much worse (if worse at all).
next prev parent reply other threads:[~2026-10-15 3:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 3:50 [PATCH v3 00/11] zram: redesign zcomp and rework backends Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 01/11] zram: prefix backends printk-s Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 02/11] zram: remove debugfs entry on init failure Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 03/11] zram: zstd: do not allocate empty C/D-dictionaries Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 04/11] zram: lz4hc: pre-initialize dictionary stream in setup_params Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 05/11] zram: lz4: use LZ4_decompress_safe_usingDict() Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 06/11] zram: lz4hc: " Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 07/11] zram: zstd: do not use kvzalloc() for zstd allocations Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 08/11] zram: reset writeback state in zram_reset_device() Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 09/11] zram: split zcomp into separate R/W streams Sergey Senozhatsky
2026-10-13 3:50 ` [PATCH v3 10/11] zram: use rw_semaphore for decompression streams Sergey Senozhatsky
2026-10-14 15:36 ` Bo Zhang
2026-10-14 20:46 ` Barry Song
2026-10-15 2:04 ` Sergey Senozhatsky
2026-10-15 3:19 ` Bo Zhang
2026-10-15 3:24 ` Sergey Senozhatsky [this message]
2026-10-15 1:41 ` Sergey Senozhatsky
2026-10-15 2:11 ` Sergey Senozhatsky
2026-10-15 3:19 ` Sergey Senozhatsky
2026-10-15 5:18 ` Sergey Senozhatsky
2026-10-15 11:24 ` Bo Zhang
2026-10-13 3:50 ` [PATCH v3 11/11] zram: use a singleton compression context for recompression 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=atBHDEBCVL6Ae0hT@google.com \
--to=senozhatsky@chromium.org \
--cc=akpm@linux-foundation.org \
--cc=baohua@kernel.org \
--cc=bgeffon@google.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=minchan@kernel.org \
--cc=richardycc@google.com \
--cc=zhangbo0325@gmail.com \
/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