Linux Device Mapper development
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From: "Kani, Toshimitsu" <toshi.kani-ZPxbGqLxI0U@public.gmane.org>
To: "dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org"
	<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	"linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org"
	<linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org>
Cc: "snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org"
	<x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
	<dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	"viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org"
	<viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	"linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"hch-jcswGhMUV9g@public.gmane.org"
	<hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH v3 05/14] dm: add ->flush() dax operation support
Date: Thu, 15 Jun 2017 01:44:54 +0000	[thread overview]
Message-ID: <1497491062.9288.19.camel@hpe.com> (raw)
In-Reply-To: <149703985321.20620.13954624502810597823.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

On Fri, 2017-06-09 at 13:24 -0700, Dan Williams wrote:
> Allow device-mapper to route flush operations to the
> per-target implementation. In order for the device stacking to work
> we need a dax_dev and a pgoff relative to that device. This gives
> each layer of the stack the information it needs to look up the
> operation pointer for the next level.
> 
> This conceptually allows for an array of mixed device drivers with
> varying flush implementations.
> 
> Cc: Toshi Kani <toshi.kani-ZPxbGqLxI0U@public.gmane.org>
> Reviewed-by: Mike Snitzer <snitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Signed-off-by: Dan Williams <dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

Looks good to me.

Reviewed-by: Toshi Kani <toshi.kani-ZPxbGqLxI0U@public.gmane.org>

Thanks,
-Toshi

  parent reply	other threads:[~2017-06-15  1:44 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-09 20:23 [PATCH v3 00/14] pmem: stop abusing __copy_user_nocache(), and other reworks Dan Williams
     [not found] ` <149703982465.20620.14881139332926778446.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-09 20:23   ` [PATCH v3 01/14] x86, uaccess: introduce copy_from_iter_flushcache for pmem / cache-bypass operations Dan Williams
     [not found]     ` <149703983098.20620.14791162611225792317.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-18  8:28       ` Christoph Hellwig
     [not found]         ` <20170618082841.GA26456-jcswGhMUV9g@public.gmane.org>
2017-06-19  2:02           ` Dan Williams
2017-06-09 20:23   ` [PATCH v3 02/14] dm: add ->copy_from_iter() dax operation support Dan Williams
     [not found]     ` <149703983692.20620.3787021839815275819.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-15  0:46       ` Kani, Toshimitsu
2017-06-15  1:21         ` Kani, Toshimitsu
2017-06-18  8:37       ` Christoph Hellwig
     [not found]         ` <20170618083702.GB26456-jcswGhMUV9g@public.gmane.org>
2017-06-19  2:04           ` Dan Williams
2017-06-09 20:24   ` [PATCH v3 03/14] filesystem-dax: convert to dax_copy_from_iter() Dan Williams
     [not found]     ` <149703984208.20620.7803227571371078891.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-14 10:58       ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 04/14] dax, pmem: introduce an optional 'flush' dax_operation Dan Williams
     [not found]     ` <149703984722.20620.1577767383686219477.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-14 10:57       ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 05/14] dm: add ->flush() dax operation support Dan Williams
     [not found]     ` <149703985321.20620.13954624502810597823.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-15  1:44       ` Kani, Toshimitsu [this message]
2017-06-09 20:24   ` [PATCH v3 06/14] filesystem-dax: convert to dax_flush() Dan Williams
     [not found]     ` <149703985873.20620.14408850278717601623.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-14 10:56       ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 07/14] x86, dax: replace clear_pmem() with open coded memset + dax_ops->flush Dan Williams
     [not found]     ` <149703986417.20620.16200765147913100718.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-14 10:55       ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 08/14] x86, dax, libnvdimm: move wb_cache_pmem() to libnvdimm Dan Williams
2017-06-14 10:54     ` Jan Kara
     [not found]       ` <20170614105425.GD21506-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org>
2017-06-14 16:49         ` Dan Williams
     [not found]           ` <CAPcyv4hNLkX9ct=Z9YQ8zaqAYPa_ab_+W+Z8By6=btJEkbrZag-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-06-15  8:11             ` Jan Kara
     [not found]     ` <149703986971.20620.10303247412197996310.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-18  8:40       ` Christoph Hellwig
     [not found]         ` <20170618084036.GC26456-jcswGhMUV9g@public.gmane.org>
2017-06-19  2:06           ` Dan Williams
2017-06-09 20:24   ` [PATCH v3 09/14] x86, libnvdimm, pmem: move arch_invalidate_pmem() " Dan Williams
2017-06-14 10:49     ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 10/14] pmem: remove global pmem api Dan Williams
     [not found]     ` <149703988061.20620.2077699148888013311.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-14 10:48       ` Jan Kara
2017-06-09 20:24   ` [PATCH v3 11/14] libnvdimm, pmem: fix persistence warning Dan Williams
2017-06-09 20:24   ` [PATCH v3 12/14] libnvdimm, nfit: enable support for volatile ranges Dan Williams
2017-06-09 20:24   ` [PATCH v3 13/14] filesystem-dax: gate calls to dax_flush() on QUEUE_FLAG_WC Dan Williams
2017-06-14 10:46     ` Jan Kara
     [not found]       ` <20170614104626.GA21506-4I4JzKEfoa/jFM9bn6wA6Q@public.gmane.org>
2017-06-14 16:49         ` Dan Williams
     [not found]     ` <149703989611.20620.6907872165215640212.stgit-p8uTFz9XbKj2zm6wflaqv1nYeNYlB/vhral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-06-18  8:45       ` Christoph Hellwig
     [not found]         ` <20170618084557.GD26456-jcswGhMUV9g@public.gmane.org>
2017-06-19  2:07           ` Dan Williams
2017-06-09 20:25   ` [PATCH v3 14/14] libnvdimm, pmem: disable dax flushing when pmem is fronting a volatile region Dan Williams
2017-06-09 23:21     ` Dan Williams
2017-06-10 17:54     ` [PATCH v4 " Dan Williams

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