kern/65300: Can't use sendfile(2) to download files in UDF DVD

Thu Apr 8 12:10:17 PDT 2004

The following reply was made to PR kern/65300; it has been noted by GNATS.

From: "Alex Wang" <alex at alexwang.com>
To: <freebsd-gnats-submit at FreeBSD.org>, "ALEX" <alex at alexwang.com>
Cc:  
Subject: Re: kern/65300: Can't use sendfile(2) to download files in UDF DVD
Date: Fri, 9 Apr 2004 03:06:33 +0800

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 I guess the reason is the sendfile(2) get page by the file vp and offset =
 but the udf_read gives bread() device vp and sector. So the bread can't =
 get the same page with sendfile().
 We should give bread file vp and offset. Then transfer into device vp =
 and logical block in udf_strategy.=20

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 <DIV><FONT face=3DArial size=3D2>I guess the reason is the sendfile(2) =
 get page by=20
 the file vp and offset but the udf_read gives bread() device vp and =
 sector. So=20
 the bread can't get the same page with sendfile().</FONT></DIV>
 <DIV><FONT face=3DArial size=3D2>We should give bread file vp and =
 offset. Then=20
 transfer into device vp and logical block in udf_strategy.=20
 </FONT></DIV></BODY></HTML>

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