From: Joe Perches <joe@perches.com>
To: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
Jiandong Zheng <jdzheng@broadcom.com>,
Scott Branden <sbranden@broadcom.com>,
David Woodhouse <dwmw2@infradead.org>,
linux-mtd@lists.infradead.org
Subject: Re: [PATCH] mtd/nand: use string library
Date: Fri, 27 Jan 2012 09:16:29 -0800 [thread overview]
Message-ID: <1327684589.12089.22.camel@joe2Laptop> (raw)
In-Reply-To: <1327674295-3700-2-git-send-email-akinobu.mita@gmail.com>
On Fri, 2012-01-27 at 23:24 +0900, Akinobu Mita wrote:
> - Use memchr_inv to check if the data contains all 0xFF bytes.
> It is faster than looping for each byte.
Stupid question:
Are there any mtd devices modified that are slower
at 64 bit accesses than repeated 8 bit accesses?
next prev parent reply other threads:[~2012-01-27 17:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-27 14:24 [PATCH] powerpc: use string library Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/nand: " Akinobu Mita
2012-01-27 17:16 ` Joe Perches [this message]
2012-01-27 18:52 ` Brian Norris
2012-01-27 23:52 ` Akinobu Mita
2012-01-31 17:57 ` Brian Norris
2012-02-01 13:11 ` Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/onenand: " Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/ubi: use memchr_inv Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/inftlmount: " Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/nftlmount: " Akinobu Mita
2012-01-27 14:24 ` [PATCH] mtd/tests: " Akinobu Mita
2012-01-27 14:24 ` [PATCH] mISDN: " Akinobu Mita
2012-02-01 19:15 ` David Miller
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