From: "Theodore Ts'o" <tytso-3s7WtUTddSA@public.gmane.org>
To: Pankaj Gupta <pagupta-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: cohuck-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
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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-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
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-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Reviewed-by: Jan Kara <jack-AlSwsSmVLrQ@public.gmane.org>
Acked-by: Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>
WARNING: multiple messages have this Message-ID (diff)
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,
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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>
WARNING: multiple messages have this Message-ID (diff)
From: "Theodore Ts'o" <tytso@mit.edu>
To: Pankaj Gupta <pagupta@redhat.com>
Cc: cohuck@redhat.com, jack@suse.cz, kvm@vger.kernel.org,
mst@redhat.com, jasowang@redhat.com, david@fromorbit.com,
qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org,
dm-devel@redhat.com, adilger.kernel@dilger.ca,
zwisler@kernel.org, aarcange@redhat.com, jstaron@google.com,
linux-nvdimm@lists.01.org, david@redhat.com, willy@infradead.org,
hch@infradead.org, linux-acpi@vger.kernel.org,
linux-ext4@vger.kernel.org, lenb@kernel.org, kilobyte@angband.pl,
rdunlap@infradead.org, riel@surriel.com, yuval.shaia@oracle.com,
stefanha@redhat.com, pbonzini@redhat.com, lcapitulino@redhat.com,
kwolf@redhat.com, nilal@redhat.com, xiaoguangrong.eric@gmail.com,
snitzer@redhat.com, darrick.wong@oracle.com, rjw@rjwysocki.net,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, imammedo@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>
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm
WARNING: multiple messages have this Message-ID (diff)
From: "Theodore Ts'o" <tytso@mit.edu>
To: Pankaj Gupta <pagupta@redhat.com>
Cc: cohuck@redhat.com, jack@suse.cz, kvm@vger.kernel.org,
mst@redhat.com, jasowang@redhat.com, david@fromorbit.com,
qemu-devel@nongnu.org, virtualization@lists.linux-foundation.org,
dm-devel@redhat.com, adilger.kernel@dilger.ca,
zwisler@kernel.org, aarcange@redhat.com, dave.jiang@intel.com,
jstaron@google.com, linux-nvdimm@lists.01.org,
vishal.l.verma@intel.com, david@redhat.com, willy@infradead.org,
hch@infradead.org, linux-acpi@vger.kernel.org, jmoyer@redhat.com,
linux-ext4@vger.kernel.org, lenb@kernel.org, kilobyte@angband.pl,
rdunlap@infradead.org, riel@surriel.com, yuval.shaia@oracle.com,
stefanha@redhat.com, pbonzini@redhat.com,
dan.j.williams@intel.com, lcapitulino@redhat.com,
kwolf@redhat.com, nilal@redhat.com, xiaoguangrong.eric@gmail.com,
snitzer@redhat.com, darrick.wong@oracle.com, rjw@rjwysocki.net,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, imammedo@redhat.com
Subject: Re: [Qemu-devel] [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 16:34 UTC|newest]
Thread overview: 37+ 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 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 1/7] libnvdimm: nd_region flush callback support Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 2/7] virtio-pmem: Add virtio pmem driver Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 3/7] libnvdimm: add dax_dev sync flag Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 4/7] dm: enable synchronous dax Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 5/7] dax: check synchronous mapping is supported Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [PATCH v15 6/7] ext4: disable map_sync for async flush Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
[not found] ` <20190705140328.20190-7-pagupta-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-07-07 16:34 ` Theodore Ts'o [this message]
2019-07-07 16:34 ` [Qemu-devel] " Theodore Ts'o
2019-07-07 16:34 ` Theodore Ts'o
2019-07-07 16:34 ` Theodore Ts'o
2019-07-07 16:34 ` Theodore Ts'o
2019-07-05 14:03 ` [PATCH v15 7/7] xfs: " Pankaj Gupta
2019-07-05 14:03 ` [Qemu-devel] " Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
2019-07-05 14:03 ` Pankaj Gupta
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