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

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Message-ID: <881e9a2a-0a9e-dda4-1b2f-e208d942898a@redhat.com>
Date: Tue, 18 Nov 2025 19:05:52 +0100 (CET)
From: Mikulas Patocka <mpatocka@...hat.com>
To: Dongsheng Yang <dongsheng.yang@...ux.dev>
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



On Thu, 13 Nov 2025, Dongsheng Yang wrote:

> Hi Mikulas,
> 
>     Please consider taking these three patches.
> 
> Thanx
> 
> Dongsheng

OK, thanks. I accepted the patches and I staged them for the kernel 6.18.

Mikulas


> 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(-)
> > 
>