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Date: Tue, 8 Oct 2002 12:42:44 +0200
From: "J.A. Magallon" <jamagallon@able.es>
To: Robert Love <rml@tech9.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] O_STREAMING - flag for optimal streaming I/O
Message-ID: <20021008104244.GA1895@werewolf.able.es>
References: <1034044736.29463.318.camel@phantasy>
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Hi,

On 2002.10.08 Robert Love wrote:
>Attached patch implements an O_STREAMING file I/O flag which enables
>manual drop-behind of pages.
>
>If the file has O_STREAMING set then the user has explicitly said "this
>is streaming data, I know I will not revisit this, do not cache
>anything".  So we drop pages from the pagecache before our current
>index.  We have to fiddle a bit to get writes working since we do
>write-behind but the logic is there and it works.
>

Sorry if this is a newbie question, but, does glibc pass flags blindly
to the syscal ?? Ie, I do not need to rebuild glibc to use this in
open(), fcntl() and so on, just I can make sure that bit 04000000
is set in the flags.

TIA

-- 
J.A. Magallon <jamagallon@able.es>      \                 Software is like sex:
werewolf.able.es                         \           It's better when it's free
Mandrake Linux release 9.0 (dolphin) for i586
Linux 2.4.20-pre9-jam1 (gcc 3.2 (Mandrake Linux 9.0 3.2-1mdk))
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