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[Qemu-devel] Re: [PATCH] ahci: fix lst+fis mapping


From: Gerd Hoffmann
Subject: [Qemu-devel] Re: [PATCH] ahci: fix lst+fis mapping
Date: Mon, 22 Nov 2010 10:14:58 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3

On 11/21/10 03:04, Alexander Graf wrote:

On 20.11.2010, at 00:06, Gerd Hoffmann wrote:

The ahci map_page() function checks whenever it got a full page
mapped. This is wrong.   The data structures are much smaller:
command list is 1k and fis is 256 bytes.  Checking whenever we can
access that much bytes without crossing a page border is good
enougth.

Looks good :). Do you want me to incorporate this with the next
revision of my patch set or keep it separate?

Feel free to squash it in.

cheers,
  Gerd




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