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From: "David Schwartz" <davids@webmaster.com>
To: "Pierre Etchemaite" <petchema@concept-micro.com>,
        <linux-kernel@vger.kernel.org>
Subject: RE: tmpfs + sendfile bug ?
Date: Mon, 21 May 2001 11:49:40 -0700
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> That could be a bug with tmpfs and sendfile in 2.4.5-pre4 :
>
> [...]
> read(8, "%PDF-1.4\r%\342\343\317\323\r\n870 0 obj\r<< \r/L"...,
> 8192) = 8192
> shmat(11, 0x4cfe65, 0x3)                = 0xbffff4d4
> sendfile(11, 8, [0], 5045861)           = -1 EINVAL (Invalid argument)
> [...]
>
> Any idea ?

	Looks like a bug in the program. If 'sendfile' returns 'EINVAL', that means
you can't use 'sendfile' to send this particular file, and should default to
read/write or mmap/write. If this program doesn't, it doesn't understand
Linux's 'sendfile' semantics.

	DS