From: "Theodore Ts'o" <tytso@mit.edu>
To: Pankaj Gupta <pagupta@redhat.com>
Cc: dm-devel@redhat.com, linux-nvdimm@lists.01.org,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-acpi@vger.kernel.org,
qemu-devel@nongnu.org, linux-ext4@vger.kernel.org,
linux-xfs@vger.kernel.org, dan.j.williams@intel.com,
zwisler@kernel.org, vishal.l.verma@intel.com,
dave.jiang@intel.com, mst@redhat.com, jasowang@redhat.com,
willy@infradead.org, rjw@rjwysocki.net, hch@infradead.org,
lenb@kernel.org, jack@suse.cz, adilger.kernel@dilger.ca,
darrick.wong@oracle.com, lcapitulino@redhat.com,
kwolf@redhat.com, imammedo@redhat.com, jmoyer@redhat.com,
nilal@redhat.com, riel@surriel.com, stefanha@redhat.com,
aarcange@redhat.com, david@redhat.com, david@fromorbit.com,
cohuck@redhat.com, xiaoguangrong.eric@gmail.com,
pbonzini@redhat.com, yuval.shaia@oracle.com, kilobyte@angband.pl,
jstaron@google.com, rdunlap@infradead.org, snitzer@redhat.com
Subject: Re: [PATCH v15 6/7] ext4: disable map_sync for async flush
Date: Sun, 7 Jul 2019 12:34:15 -0400 [thread overview]
Message-ID: <20190707163415.GA19775@mit.edu> (raw)
In-Reply-To: <20190705140328.20190-7-pagupta@redhat.com>
On Fri, Jul 05, 2019 at 07:33:27PM +0530, Pankaj Gupta wrote:
> Dont support 'MAP_SYNC' with non-DAX files and DAX files
> with asynchronous dax_device. Virtio pmem provides
> asynchronous host page cache flush mechanism. We don't
> support 'MAP_SYNC' with virtio pmem and ext4.
>
> Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
> Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Theodore Ts'o <tytso@mit.edu>
next prev parent reply other threads:[~2019-07-07 16:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-05 14:03 [PATCH v15 0/7] virtio pmem driver Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 1/7] libnvdimm: nd_region flush callback support Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 2/7] virtio-pmem: Add virtio pmem driver Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 3/7] libnvdimm: add dax_dev sync flag Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 4/7] dm: enable synchronous dax Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 5/7] dax: check synchronous mapping is supported Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 6/7] ext4: disable map_sync for async flush Pankaj Gupta
2019-07-07 16:34 ` Theodore Ts'o [this message]
2019-07-05 14:03 ` [PATCH v15 7/7] xfs: " Pankaj Gupta
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=20190707163415.GA19775@mit.edu \
--to=tytso@mit.edu \
--cc=aarcange@redhat.com \
--cc=adilger.kernel@dilger.ca \
--cc=cohuck@redhat.com \
--cc=dan.j.williams@intel.com \
--cc=darrick.wong@oracle.com \
--cc=dave.jiang@intel.com \
--cc=david@fromorbit.com \
--cc=david@redhat.com \
--cc=dm-devel@redhat.com \
--cc=hch@infradead.org \
--cc=imammedo@redhat.com \
--cc=jack@suse.cz \
--cc=jasowang@redhat.com \
--cc=jmoyer@redhat.com \
--cc=jstaron@google.com \
--cc=kilobyte@angband.pl \
--cc=kvm@vger.kernel.org \
--cc=kwolf@redhat.com \
--cc=lcapitulino@redhat.com \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvdimm@lists.01.org \
--cc=linux-xfs@vger.kernel.org \
--cc=mst@redhat.com \
--cc=nilal@redhat.com \
--cc=pagupta@redhat.com \
--cc=pbonzini@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rdunlap@infradead.org \
--cc=riel@surriel.com \
--cc=rjw@rjwysocki.net \
--cc=snitzer@redhat.com \
--cc=stefanha@redhat.com \
--cc=virtualization@lists.linux-foundation.org \
--cc=vishal.l.verma@intel.com \
--cc=willy@infradead.org \
--cc=xiaoguangrong.eric@gmail.com \
--cc=yuval.shaia@oracle.com \
--cc=zwisler@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;
as well as URLs for NNTP newsgroup(s).