From: Dan Williams <dan.j.williams@intel.com>
To: Christoph Hellwig <hch@lst.de>
Cc: "Ross Zwisler" <ross.zwisler@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-nvdimm@lists.01.org" <linux-nvdimm@ml01.01.org>,
"Jonathan Corbet" <corbet@lwn.net>,
"Benjamin Herrenschmidt" <benh@kernel.crashing.org>,
"Paul Mackerras" <paulus@samba.org>,
"Michael Ellerman" <mpe@ellerman.id.au>,
"Jens Axboe" <axboe@kernel.dk>,
"Martin Schwidefsky" <schwidefsky@de.ibm.com>,
"Heiko Carstens" <heiko.carstens@de.ibm.com>,
linux390@de.ibm.com, "Alexander Viro" <viro@zeniv.linux.org.uk>,
"Matthew Wilcox" <willy@linux.intel.com>,
"Jeff Layton" <jlayton@primarydata.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Omar Sandoval" <osandov@osandov.com>,
"Boaz Harrosh" <boaz@plexistor.com>,
"Miklos Szeredi" <mszeredi@suse.cz>, "Jan Kara" <jack@suse.cz>,
"Wolfram Sang" <wsa@the-dreams.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Gerald Schaefer" <gerald.schaefer@de.ibm.com>,
"Ameen Ali" <ameenali023@gmail.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
"Sagi Grimberg" <sagig@mellanox.com>,
"Mike Snitzer" <snitzer@redhat.com>, "Tejun Heo" <tj@kernel.org>,
"Shaohua Li" <shli@fb.com>, "Ming Lei" <ming.lei@canonical.com>,
linux-doc@vger.kernel.org,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
linux-s390@vger.kernel.org,
linux-fsdevel <linux-fsdevel@vger.kernel.org>,
"Dave Chinner" <david@fromorbit.com>
Subject: Re: [PATCH v2 7/7] pmem, dax: have direct_access use __pmem annotation
Date: Sat, 15 Aug 2015 08:49:14 -0700 [thread overview]
Message-ID: <CAPcyv4hKsew+pNS+2i9rvfR+JCsXcKFURaQ2Cf3t5HZoTWWsvg@mail.gmail.com> (raw)
In-Reply-To: <20150815091154.GA21290@lst.de>
On Sat, Aug 15, 2015 at 2:11 AM, Christoph Hellwig <hch@lst.de> wrote:
> On Fri, Aug 14, 2015 at 09:58:16AM -0700, Dan Williams wrote:
>> > I'll merge with your code for v3.
>>
>> Sounds, let me go rebase the __pfn_t patches on -mm so we'all lined up
>> and collision free.
>
> I'm doubt that we'll have PFN mapping ready for 4.3. I'd rather see
> Ross series goes first, and move the patch to remove the size argument
> from ->direct access [1] over to this series as well.
>
> [1] https://git.kernel.org/cgit/linux/kernel/git/djbw/nvdimm.git/commit/?h=pfn&id=8e15e69fb9e61ac563c5a7ffd9dd9a7b545cced3
Yes, let's do it. The need for DAX persistence guarantees is a higher
priority than solving the DAX vs PMEM unbind bug. Especially if we
can defer __pfn_t and get some basic struct page mapping into 4.3 as
well.
next prev parent reply other threads:[~2015-08-15 15:49 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-13 16:51 [PATCH v2 0/7] dax: I/O path enhancements Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 1/7] brd: make rd_size static Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 2/7] pmem, x86: move x86 PMEM API to new pmem.h header Ross Zwisler
2015-08-15 8:58 ` Christoph Hellwig
2015-08-13 16:51 ` [PATCH v2 3/7] pmem: remove layer when calling arch_has_wmb_pmem() Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 4/7] pmem, x86: clean up conditional pmem includes Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 5/7] pmem: add wb_cache_pmem() and clear_pmem() Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 6/7] dax: update I/O path to do proper PMEM flushing Ross Zwisler
2015-08-13 21:11 ` Dan Williams
2015-08-14 16:48 ` Ross Zwisler
2015-08-13 16:51 ` [PATCH v2 7/7] pmem, dax: have direct_access use __pmem annotation Ross Zwisler
2015-08-13 21:20 ` Dan Williams
2015-08-14 16:55 ` Ross Zwisler
2015-08-14 16:58 ` Dan Williams
2015-08-15 9:11 ` Christoph Hellwig
2015-08-15 15:49 ` Dan Williams [this message]
2015-08-15 9:19 ` Christoph Hellwig
2015-08-15 15:44 ` Dan Williams
2015-08-15 16:00 ` Christoph Hellwig
2015-08-15 18:05 ` Dan Williams
2015-08-17 20:07 ` Ross Zwisler
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