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From: Mike Snitzer <snitzer@redhat.com>
To: Huaisheng Ye <yehs2007@zoho.com>
Cc: jack@suse.cz, heiko.carstens@de.ibm.com, dm-devel@redhat.com,
	agk@redhat.com, linux-s390@vger.kernel.org,
	linux-nvdimm@lists.01.org, willy@infradead.org,
	bart.vanassche@wdc.com, chengnt@lenovo.com, colyli@suse.de,
	schwidefsky@de.ibm.com, viro@zeniv.linux.org.uk, axboe@kernel.dk,
	gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
	linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v2 5/6] md/dm-writecache: Don't request pointer dummy_addr when not required
Date: Fri, 27 Jul 2018 15:33:33 -0400	[thread overview]
Message-ID: <20180727193333.GA23266@redhat.com> (raw)
In-Reply-To: <20180725162849.8320-6-yehs2007@zoho.com>

On Wed, Jul 25 2018 at 12:28pm -0400,
Huaisheng Ye <yehs2007@zoho.com> wrote:

> From: Huaisheng Ye <yehs1@lenovo.com>
> 
> Function persistent_memory_claim doesn't need to get local pointer
> dummy_addr from direct_access. Using NULL instead of having to pass
> in a useless local pointer that caller then just throw away.
> 
> Suggested-by: Ross Zwisler <ross.zwisler@linux.intel.com>
> Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>

Acked-by: Mike Snitzer <snitzer@redhat.com>
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  reply	other threads:[~2018-07-27 19:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-25 16:28 [PATCH v2 0/6] kaddr and pfn can be NULL to ->direct_access() Huaisheng Ye
2018-07-25 16:28 ` [PATCH v2 1/6] libnvdimm, pmem: " Huaisheng Ye
2018-07-25 16:28 ` [PATCH v2 2/6] s390, dcssblk: " Huaisheng Ye
2018-07-28  4:07   ` [External] " Huaisheng HS1 Ye
2018-07-30  5:14     ` Martin Schwidefsky
2018-07-25 16:28 ` [PATCH v2 3/6] tools/testing/nvdimm: " Huaisheng Ye
2018-07-25 16:28 ` [PATCH v2 4/6] dax/super: Do not request a pointer kaddr when not required Huaisheng Ye
2018-07-25 16:28 ` [PATCH v2 5/6] md/dm-writecache: Don't request pointer dummy_addr " Huaisheng Ye
2018-07-27 19:33   ` Mike Snitzer [this message]
2018-07-25 16:28 ` [PATCH v2 6/6] filesystem-dax: Do not request kaddr and pfn " Huaisheng Ye
2018-07-25 17:23 ` [PATCH v2 0/6] kaddr and pfn can be NULL to ->direct_access() Ross Zwisler
2018-07-25 21:35 ` Dave Jiang
2018-07-26  1:29   ` [External] " Huaisheng HS1 Ye

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