From: Christoph Hellwig <hch@infradead.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Martin Oliveira <martin.oliveira@eideticom.com>,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Artemy Kovalyov <artemyko@nvidia.com>,
Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>,
Logan Gunthorpe <logang@deltatee.com>,
Michael Guralnik <michaelgur@nvidia.com>,
Mike Marciniszyn <mike.marciniszyn@intel.com>,
Shiraz Saleem <shiraz.saleem@intel.com>,
Tejun Heo <tj@kernel.org>, John Hubbard <jhubbard@nvidia.com>,
Dan Williams <dan.j.williams@intel.com>,
David Sloan <david.sloan@eideticom.com>
Subject: Re: [PATCH v5 1/4] kernfs: add a WARN_ON_ONCE if ->close is set
Date: Sun, 11 Aug 2024 23:38:11 -0700 [thread overview]
Message-ID: <Zrmt01OTCRywW55v@infradead.org> (raw)
In-Reply-To: <2024080933-jazz-supernova-9f3a@gregkh>
On Fri, Aug 09, 2024 at 07:37:49AM +0200, Greg Kroah-Hartman wrote:
> > * It is not possible to successfully wrap close.
> > * So error if someone is trying to use close.
> > */
> > - if (vma->vm_ops && vma->vm_ops->close)
> > + if (WARN_ON_ONCE(vma->vm_ops && vma->vm_ops->close))
>
> So you just rebooted a machine that hits this, loosing data everywhere.
> Not nice :(
Huh. if you are stupid enough to set panic_on_warn you get to keep
the pieces. And our file systems are reliable to not use data on
an unclean shutdown anyway.
Pleaee stop these BS arguments.
next prev parent reply other threads:[~2024-08-12 6:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-08 18:33 [PATCH v5 0/4] Enable P2PDMA in Userspace RDMA Martin Oliveira
2024-08-08 18:33 ` [PATCH v5 1/4] kernfs: add a WARN_ON_ONCE if ->close is set Martin Oliveira
2024-08-09 5:37 ` Greg Kroah-Hartman
2024-08-09 15:41 ` Martin Oliveira
2024-08-11 8:31 ` Greg Kroah-Hartman
2024-08-12 6:38 ` Christoph Hellwig [this message]
2024-08-12 6:38 ` Christoph Hellwig
2024-08-08 18:33 ` [PATCH v5 2/4] kernfs: remove page_mkwrite() from vm_operations_struct Martin Oliveira
2024-08-12 6:38 ` Christoph Hellwig
2024-08-08 18:33 ` [PATCH v5 3/4] mm/gup: allow FOLL_LONGTERM & FOLL_PCI_P2PDMA Martin Oliveira
2024-08-12 6:39 ` Christoph Hellwig
2024-08-12 23:12 ` Jason Gunthorpe
2024-08-13 5:41 ` Christoph Hellwig
2024-08-13 16:05 ` Jason Gunthorpe
2024-08-13 17:03 ` Dan Williams
2024-08-14 0:02 ` Jason Gunthorpe
2024-08-14 4:26 ` Christoph Hellwig
2024-08-15 16:38 ` Jason Gunthorpe
2024-08-08 18:33 ` [PATCH v5 4/4] RDMA/umem: add support for P2P RDMA Martin Oliveira
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=Zrmt01OTCRywW55v@infradead.org \
--to=hch@infradead.org \
--cc=akpm@linux-foundation.org \
--cc=artemyko@nvidia.com \
--cc=dan.j.williams@intel.com \
--cc=david.sloan@eideticom.com \
--cc=gregkh@linuxfoundation.org \
--cc=jgg@ziepe.ca \
--cc=jhubbard@nvidia.com \
--cc=leon@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-rdma@vger.kernel.org \
--cc=logang@deltatee.com \
--cc=martin.oliveira@eideticom.com \
--cc=michaelgur@nvidia.com \
--cc=mike.marciniszyn@intel.com \
--cc=shiraz.saleem@intel.com \
--cc=tj@kernel.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