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| From | Tejun Heo <tj@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v6 0/4] SCT Write Same |
| Date | Thu, 25 Aug 2016 17:30:01 +0200 |
| Message-ID | <sa4Ln-2LX-11@gated-at.bofh.it> (permalink) |
| References | <s8P21-1r7-3@gated-at.bofh.it> |
| X-Original-To | Shaun Tancheff <shaun@tancheff.com> |
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| X-Original-Cc | linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>, Tom Yan <tom.ty89@gmail.com>, "Martin K . Petersen" <martin.petersen@oracle.com>, Damien Le Moal <damien.lemoal@hgst.com>, Hannes Reinecke <hare@suse.de>, Josh Bingaman <josh.bingaman@seagate.com>, Hannes Reinecke <hare@suse.com> |
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Hello, On Sun, Aug 21, 2016 at 11:23:17PM -0500, Shaun Tancheff wrote: > At some point the method of issuing Write Same for ATA drives changed. > Currently write same is commonly available via SCT so expose the SCT > capabilities and use SCT Write Same when it is available. > > This is useful for zoned based media that prefers to support discard > with lbprz set, aka discard zeroes data by mapping discard operations to > reset write pointer operations. Conventional zones that do not support > reset write pointer can still honor the discard zeroes data by issuing > a write same over the zone. > > It may also be nice to know if various controllers that currently > disable WRITE SAME will work with the SCT Write Same code path: > aacraid, arcmsr, megaraid, 3w-9xxx, 3w-sas, 3w-xxxx, gdth, hpsa, ips, > megaraid, pmcraid, storvsc_drv Applied 1-4 to libata/for-4.9. Thanks. -- tejun
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[PATCH v6 0/4] SCT Write Same Shaun Tancheff <shaun@tancheff.com> - 2016-08-22 06:30 +0200 Re: [PATCH v6 0/4] SCT Write Same Hannes Reinecke <hare@suse.de> - 2016-08-22 08:40 +0200 Re: [PATCH v6 0/4] SCT Write Same Tejun Heo <tj@kernel.org> - 2016-08-25 17:30 +0200
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