From: Dan Williams <dan.j.williams@intel.com>
To: Pankaj Gupta <pagupta@redhat.com>
Cc: linux-nvdimm <linux-nvdimm@lists.01.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
virtualization@lists.linux-foundation.org,
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Ross Zwisler <zwisler@kernel.org>,
Vishal L Verma <vishal.l.verma@intel.com>,
Dave Jiang <dave.jiang@intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
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Nitesh Narayan Lal <nilal@redhat.com>,
Rik van Riel <riel@surriel.com>,
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David Hildenbrand <david@redhat.com>, david <david@fromorbit.com>,
cohuck@redhat.com, Xiao Guangrong <xiaoguangrong.eric@gmail.com>,
Paolo Bonzini <pbonzini@redhat.com>,
kilobyte@angband.pl, yuval shaia <yuval.shaia@oracle.com>
Subject: Re: [PATCH v7 3/6] libnvdimm: add dax_dev sync flag
Date: Tue, 7 May 2019 08:40:30 -0700 [thread overview]
Message-ID: <CAPcyv4hRdvypEj4LBTMfUFm80BdpRYbOugrkkj-3Kk_LErXPqQ@mail.gmail.com> (raw)
In-Reply-To: <20190426050039.17460-4-pagupta@redhat.com>
On Thu, Apr 25, 2019 at 10:02 PM Pankaj Gupta <pagupta@redhat.com> wrote:
>
> This patch adds 'DAXDEV_SYNC' flag which is set
> for nd_region doing synchronous flush. This later
> is used to disable MAP_SYNC functionality for
> ext4 & xfs filesystem for devices don't support
> synchronous flush.
>
> Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
[..]
> diff --git a/include/linux/dax.h b/include/linux/dax.h
> index 0dd316a74a29..c97fc0cc7167 100644
> --- a/include/linux/dax.h
> +++ b/include/linux/dax.h
> @@ -7,6 +7,9 @@
> #include <linux/radix-tree.h>
> #include <asm/pgtable.h>
>
> +/* Flag for synchronous flush */
> +#define DAXDEV_F_SYNC true
I'd feel better, i.e. it reads more canonically, if this was defined
as (1UL << 0) and the argument to alloc_dax() was changed to 'unsigned
long flags' rather than a bool.
next prev parent reply other threads:[~2019-05-07 15:40 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-26 5:00 [PATCH v7 0/6] virtio pmem driver Pankaj Gupta
2019-04-26 5:00 ` [PATCH v7 1/6] libnvdimm: nd_region flush callback support Pankaj Gupta
2019-04-26 5:00 ` [PATCH v7 2/6] virtio-pmem: Add virtio pmem driver Pankaj Gupta
2019-04-30 5:53 ` [Qemu-devel] " Yuval Shaia
2019-04-30 6:06 ` Pankaj Gupta
2019-05-07 15:35 ` Dan Williams
2019-05-08 11:19 ` [Qemu-devel] " Pankaj Gupta
2019-05-10 23:33 ` Dan Williams
2019-05-11 1:26 ` Pankaj Gupta
2019-05-07 20:25 ` Jakub Staroń
2019-05-08 11:12 ` Pankaj Gupta
2019-05-08 15:23 ` Pankaj Gupta
2019-05-08 19:05 ` Jakub Staroń
2019-04-26 5:00 ` [PATCH v7 3/6] libnvdimm: add dax_dev sync flag Pankaj Gupta
2019-05-07 15:40 ` Dan Williams [this message]
2019-05-09 12:24 ` Pankaj Gupta
2019-04-26 5:00 ` [PATCH v7 4/6] dax: check synchronous mapping is supported Pankaj Gupta
2019-05-07 19:24 ` [Qemu-devel] " Jakub Staroń
2019-05-08 5:31 ` Pankaj Gupta
2019-04-26 5:00 ` [PATCH v7 5/6] ext4: disable map_sync for async flush Pankaj Gupta
2019-04-26 5:00 ` [PATCH v7 6/6] xfs: " Pankaj Gupta
2019-05-07 15:37 ` Dan Williams
2019-05-07 16:17 ` Darrick J. Wong
2019-05-08 5:49 ` [Qemu-devel] " Pankaj Gupta
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