linux-kernel - Re: [PATCH v2 0/3] dm-pcache: built-in support and metadata hardening

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Message-ID: <520bf329-8e3b-4b27-9bd5-82092d501174@linux.dev>
Date: Thu, 13 Nov 2025 14:43:19 +0800
From: Dongsheng Yang <dongsheng.yang@...ux.dev>
To: Mikulas Patocka <mpatocka@...hat.com>
Cc: Li Chen <me@...ux.beauty>, Linux Device Mapper
 <dm-devel@...ts.linux.dev>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 Zheng Gu <cengku@...il.com>
Subject: Re: [PATCH v2 0/3] dm-pcache: built-in support and metadata hardening

Hi Mikulas,

     Please consider taking these three patches.


Thanx

Dongsheng

在 11/11/2025 8:13 PM, Li Chen 写道:
> From: Li Chen <chenl311@...natelecom.cn>
>
> This three-patch series tidies dm-pcache’s build glue and tightens the metadata scan.
>
> Patch 1 allow dm-pcache to be linked into vmlinux and avoids clashing with the sunrpc
> cache_flush() by using obj-$(CONFIG_DM_PCACHE) and renaming the helper across the tree.
>
> Patch 2 drops a redundant recomputation of the metadata slot pointer while walking headers.
>
> Patch 3 Ensure dm-pcache initializes cache_info from a zeroed state so metadata CRC
> failures can’t leak stale flags into the new-cache path.
>
> Thanks for your review.
>
> Li Chen (3):
>    dm-pcache: allow built-in build and rename flush helper
>    dm-pcache: reuse meta_addr in pcache_meta_find_latest
>    dm-pcache: zero cache_info before default init
>
>   drivers/md/dm-pcache/Makefile          | 2 +-
>   drivers/md/dm-pcache/cache.c           | 4 ++--
>   drivers/md/dm-pcache/cache.h           | 2 +-
>   drivers/md/dm-pcache/cache_req.c       | 6 +++---
>   drivers/md/dm-pcache/pcache_internal.h | 2 +-
>   5 files changed, 8 insertions(+), 8 deletions(-)
>