Re: git: 20e94950c54e - main - nvme: Notify namespace changes better

From: Warner Losh <imp_at_bsdimp.com>
Date: Wed, 19 Nov 2025 19:56:18 UTC
On Wed, Nov 19, 2025, 11:01 AM Bjoern A. Zeeb <
bzeeb-lists@lists.zabbadoz.net> wrote:

> On Tue, 18 Nov 2025, Warner Losh wrote:
>
> > The branch main has been updated by imp:
> >
> > URL:
> https://cgit.FreeBSD.org/src/commit/?id=20e94950c54e398049396647da36b9e2c3b639c1
> >
> > commit 20e94950c54e398049396647da36b9e2c3b639c1
> > Author:     Wanpeng Qian <wanpengqian@gmail.com>
> > AuthorDate: 2025-11-18 15:24:23 +0000
> > Commit:     Warner Losh <imp@FreeBSD.org>
> > CommitDate: 2025-11-18 20:32:22 +0000
> >
> >    nvme: Notify namespace changes better
> >
> >    When we get a namespace notification, we have to reconstrut the
> >    namespace to get the new identification data from the namespace. For
> >    each namespace in the AEN, we will reconstrict it before we call the
> >    notification. We also flag it as changed for the duration of the
> change
> >    callback (prior versions of the patch needed to keep track, but we no
> >    longer do, so this bit may be removed). Note when we've seen the
> >    namespace so we can notify when it goes away.
> >
> >    Co-authored-by: imp
> >    Differential Revision: https://reviews.freebsd.org/D33032
> > ---
> > sys/dev/nvme/nvme.h       |  7 +++++--
> > sys/dev/nvme/nvme_ctrlr.c | 12 +++++++++++-
> > sys/dev/nvme/nvme_ns.c    |  9 ++++++---
> > 3 files changed, 22 insertions(+), 6 deletions(-)
>
> Just replying to one of the multiple commits:
>
> It seems from somewhere a VIMAGE enabled kernel is pulling
> in systm.h for memmove; LINT-NOVIMAGE fails without the below:
>
> % git diff
> diff --git sys/dev/nvme/nvme.h sys/dev/nvme/nvme.h
> index 8f7a7fbda14c..e17c2bf41a5a 100644
> --- sys/dev/nvme/nvme.h
> +++ sys/dev/nvme/nvme.h
> @@ -31,6 +31,7 @@
>
>   #ifdef _KERNEL
>   #include <sys/types.h>
> +#include <sys/systm.h>
>   #endif
>
>   #include <sys/param.h>
>

I'll take a look, but i didn’t think i added a memmove.

Warner

> --
> Bjoern A. Zeeb                                                     r15:7
>