From: "Elliott, Robert (Persistent Memory)" <elliott-ZPxbGqLxI0U@public.gmane.org> To: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>, "linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-xfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, "linux-nvdimm-y27Ovi1pjclAfugRpC6u6w@public.gmane.org" <linux-nvdimm-y27Ovi1pjclAfugRpC6u6w@public.gmane.org> Subject: RE: [PATCH 06/10] dax: provide an iomap based fault handler Date: Sat, 10 Sep 2016 01:38:59 +0000 [thread overview] Message-ID: <DF4PR84MB0169843EFC69F8B00E19C9EFABFD0@DF4PR84MB0169.NAMPRD84.PROD.OUTLOOK.COM> (raw) In-Reply-To: <1473438884-674-7-git-send-email-hch-jcswGhMUV9g@public.gmane.org> > -----Original Message----- > From: Linux-nvdimm [mailto:linux-nvdimm-bounces-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org] On > Behalf Of Christoph Hellwig > Sent: Friday, September 09, 2016 11:35 AM > Subject: [PATCH 06/10] dax: provide an iomap based fault handler > ... > diff --git a/fs/dax.c b/fs/dax.c > @@ -1343,4 +1343,117 @@ iomap_dax_rw(struct kiocb *iocb, struct ... > + default: > + WARN_ON_ONCE(1); > + error = -EIO; > + } > + > + /* Filesystem should not return unwritten buffers to us! */ > + error = dax_insert_mapping(mapping, iomap.bdev, sector, PAGE_SIZE, > + &entry, vma, vmf); That -EIO value would be immediately overwritten.
WARNING: multiple messages have this Message-ID (diff)
From: "Elliott, Robert (Persistent Memory)" <elliott@hpe.com> To: Christoph Hellwig <hch@lst.de>, "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>, "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>, "linux-nvdimm@ml01.01.org" <linux-nvdimm@ml01.01.org> Subject: RE: [PATCH 06/10] dax: provide an iomap based fault handler Date: Sat, 10 Sep 2016 01:38:59 +0000 [thread overview] Message-ID: <DF4PR84MB0169843EFC69F8B00E19C9EFABFD0@DF4PR84MB0169.NAMPRD84.PROD.OUTLOOK.COM> (raw) In-Reply-To: <1473438884-674-7-git-send-email-hch@lst.de> > -----Original Message----- > From: Linux-nvdimm [mailto:linux-nvdimm-bounces@lists.01.org] On > Behalf Of Christoph Hellwig > Sent: Friday, September 09, 2016 11:35 AM > Subject: [PATCH 06/10] dax: provide an iomap based fault handler > ... > diff --git a/fs/dax.c b/fs/dax.c > @@ -1343,4 +1343,117 @@ iomap_dax_rw(struct kiocb *iocb, struct ... > + default: > + WARN_ON_ONCE(1); > + error = -EIO; > + } > + > + /* Filesystem should not return unwritten buffers to us! */ > + error = dax_insert_mapping(mapping, iomap.bdev, sector, PAGE_SIZE, > + &entry, vma, vmf); That -EIO value would be immediately overwritten.
next prev parent reply other threads:[~2016-09-10 1:38 UTC|newest] Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-09-09 16:34 iomap based DAX path Christoph Hellwig [not found] ` <1473438884-674-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-09 16:34 ` [PATCH 01/10] iomap: add IOMAP_F_NEW flag Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig [not found] ` <1473438884-674-2-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-13 22:43 ` Ross Zwisler 2016-09-13 22:43 ` Ross Zwisler 2016-09-14 7:08 ` Christoph Hellwig 2016-09-09 16:34 ` [PATCH 02/10] iomap: expose iomap_apply outside iomap.c Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig [not found] ` <1473438884-674-3-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-13 22:48 ` Ross Zwisler 2016-09-13 22:48 ` Ross Zwisler 2016-09-09 16:34 ` [PATCH 03/10] dax: don't pass buffer_head to dax_insert_mapping Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig [not found] ` <1473438884-674-4-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-13 22:53 ` Ross Zwisler 2016-09-13 22:53 ` Ross Zwisler 2016-09-09 16:34 ` [PATCH 04/10] dax: don't pass buffer_head to copy_user_dax Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig 2016-09-13 22:54 ` Ross Zwisler 2016-09-09 16:34 ` [PATCH 05/10] dax: provide an iomap based dax read/write path Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig [not found] ` <1473438884-674-6-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-13 23:00 ` Ross Zwisler 2016-09-13 23:00 ` Ross Zwisler 2016-09-09 16:34 ` [PATCH 06/10] dax: provide an iomap based fault handler Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig [not found] ` <1473438884-674-7-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-09 22:55 ` Dave Chinner 2016-09-09 22:55 ` Dave Chinner 2016-09-10 7:36 ` Christoph Hellwig 2016-09-10 7:36 ` Christoph Hellwig 2016-09-13 15:51 ` Ross Zwisler [not found] ` <20160913155126.GA10622-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> 2016-09-14 7:06 ` Christoph Hellwig 2016-09-14 7:06 ` Christoph Hellwig [not found] ` <20160914070633.GA17278-jcswGhMUV9g@public.gmane.org> 2016-09-14 9:53 ` Christoph Hellwig 2016-09-14 9:53 ` Christoph Hellwig 2016-09-23 21:02 ` Ross Zwisler 2016-09-23 21:02 ` Ross Zwisler [not found] ` <20160923210237.GA23346-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> 2016-09-26 0:08 ` Christoph Hellwig 2016-09-26 0:08 ` Christoph Hellwig [not found] ` <20160926000805.GA32252-jcswGhMUV9g@public.gmane.org> 2016-09-26 14:28 ` Jan Kara 2016-09-26 14:28 ` Jan Kara 2016-09-10 1:38 ` Elliott, Robert (Persistent Memory) [this message] 2016-09-10 1:38 ` Elliott, Robert (Persistent Memory) 2016-09-13 23:10 ` Ross Zwisler [not found] ` <20160913231039.GF26002-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> 2016-09-14 7:19 ` Christoph Hellwig 2016-09-14 7:19 ` Christoph Hellwig [not found] ` <20160914071910.GC17278-jcswGhMUV9g@public.gmane.org> 2016-09-14 17:07 ` Ross Zwisler 2016-09-14 17:07 ` Ross Zwisler [not found] ` <20160914170759.GA14196-VuQAYsv1563Yd54FQh9/CA@public.gmane.org> 2016-09-15 5:12 ` Christoph Hellwig 2016-09-15 5:12 ` Christoph Hellwig [not found] ` <20160915051229.GD6188-jcswGhMUV9g@public.gmane.org> 2016-09-15 5:30 ` Darrick J. Wong 2016-09-15 5:30 ` Darrick J. Wong 2016-09-26 0:05 ` Christoph Hellwig 2016-09-09 16:34 ` [PATCH 07/10] xfs: fix locking for DAX writes Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig 2016-09-09 16:34 ` [PATCH 08/10] xfs: take the ilock shared if possible in xfs_file_iomap_begin Christoph Hellwig 2016-09-09 16:34 ` Christoph Hellwig 2016-09-09 16:34 ` [PATCH 09/10] xfs: refactor xfs_setfilesize Christoph Hellwig [not found] ` <1473438884-674-10-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2016-09-13 23:12 ` Ross Zwisler 2016-09-13 23:12 ` Ross Zwisler 2016-09-09 16:34 ` [PATCH 10/10] xfs: use iomap to implement DAX Christoph Hellwig
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