From: Christoph Hellwig <hch@infradead.org>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Jane Chu <jane.chu@oracle.com>, david <david@fromorbit.com>,
"Darrick J. Wong" <djwong@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
Vishal L Verma <vishal.l.verma@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@redhat.com>,
device-mapper development <dm-devel@redhat.com>,
"Weiny, Ira" <ira.weiny@intel.com>,
Matthew Wilcox <willy@infradead.org>,
Vivek Goyal <vgoyal@redhat.com>,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
Linux NVDIMM <nvdimm@lists.linux.dev>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-xfs <linux-xfs@vger.kernel.org>, X86 ML <x86@kernel.org>
Subject: Re: [PATCH v7 4/6] dax: add DAX_RECOVERY flag and .recovery_write dev_pgmap_ops
Date: Mon, 11 Apr 2022 22:02:17 -0700 [thread overview]
Message-ID: <YlUH2f66hMyXOP1r@infradead.org> (raw)
In-Reply-To: <CAPcyv4jpOss6hzPgM913v_QsZ+PB6Jzo1WV=YdUvnKZiwtfjiA@mail.gmail.com>
On Mon, Apr 11, 2022 at 09:57:36PM -0700, Dan Williams wrote:
> So how about change 'int flags' to 'enum dax_access_mode mode' where
> dax_access_mode is:
>
> /**
> * enum dax_access_mode - operational mode for dax_direct_access()
> * @DAX_ACCESS: nominal access, fail / trim access on encountering poison
> * @DAX_RECOVERY_WRITE: ignore poison and provide a pointer suitable
> for use with dax_recovery_write()
> */
> enum dax_access_mode {
> DAX_ACCESS,
> DAX_RECOVERY_WRITE,
> };
>
> Then the conversions look like this:
>
> - rc = dax_direct_access(iter->iomap.dax_dev, pgoff, 1, &kaddr, NULL);
> + rc = dax_direct_access(iter->iomap.dax_dev, pgoff, 1,
> DAX_ACCESS, &kaddr, NULL);
>
> ...and there's less chance of confusion with the @nr_pages argument.
Yes, this might be a little nicer.
next prev parent reply other threads:[~2022-04-12 5:02 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 19:47 [PATCH v7 0/6] DAX poison recovery Jane Chu
2022-04-05 19:47 ` [PATCH v7 1/6] x86/mm: fix comment Jane Chu
2022-04-11 22:07 ` Dan Williams
2022-04-12 9:53 ` Borislav Petkov
2022-04-14 1:00 ` Jane Chu
2022-04-14 8:44 ` Borislav Petkov
2022-04-14 21:54 ` Jane Chu
2022-04-05 19:47 ` [PATCH v7 2/6] x86/mce: relocate set{clear}_mce_nospec() functions Jane Chu
2022-04-06 5:01 ` Christoph Hellwig
2022-04-11 22:20 ` Dan Williams
2022-04-14 0:56 ` Jane Chu
2022-04-05 19:47 ` [PATCH v7 3/6] mce: fix set_mce_nospec to always unmap the whole page Jane Chu
2022-04-06 5:02 ` Christoph Hellwig
2022-04-11 23:27 ` Dan Williams
2022-04-13 23:36 ` Jane Chu
2022-04-14 2:32 ` Dan Williams
2022-04-15 16:18 ` Jane Chu
2022-04-12 10:07 ` Borislav Petkov
2022-04-13 23:41 ` Jane Chu
2022-04-05 19:47 ` [PATCH v7 4/6] dax: add DAX_RECOVERY flag and .recovery_write dev_pgmap_ops Jane Chu
2022-04-06 5:19 ` Christoph Hellwig
2022-04-06 17:32 ` Jane Chu
2022-04-06 17:45 ` Jane Chu
2022-04-07 5:30 ` Christoph Hellwig
2022-04-11 23:55 ` Dan Williams
2022-04-14 0:48 ` Jane Chu
2022-04-14 0:47 ` Jane Chu
2022-04-12 0:08 ` Dan Williams
2022-04-14 0:50 ` Jane Chu
2022-04-12 4:57 ` Dan Williams
2022-04-12 5:02 ` Christoph Hellwig [this message]
2022-04-14 0:51 ` Jane Chu
2022-04-05 19:47 ` [PATCH v7 5/6] pmem: refactor pmem_clear_poison() Jane Chu
2022-04-06 5:04 ` Christoph Hellwig
2022-04-06 17:34 ` Jane Chu
2022-04-12 4:26 ` Dan Williams
2022-04-14 0:55 ` Jane Chu
2022-04-14 2:02 ` Dan Williams
2022-04-05 19:47 ` [PATCH v7 6/6] pmem: implement pmem_recovery_write() Jane Chu
2022-04-06 5:21 ` Christoph Hellwig
2022-04-06 17:33 ` Jane Chu
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