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Re: using lseek() on large files

To: XFS mailing list <linux-xfs@xxxxxxxxxxx>
Subject: Re: using lseek() on large files
From: James Rich <james@xxxxxxxxxxxxx>
Date: Mon, 7 Apr 2003 14:21:04 -0600 (MDT)
In-reply-to: <20030408055256.A943836@xxxxxxxxxxxxxxxxxxxxxxxx>
References: <Pine.LNX.4.50.0304071343430.30028-100000@xxxxxxxxxxxxxxxxxxxxxx> <20030408055256.A943836@xxxxxxxxxxxxxxxxxxxxxxxx>
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On Tue, 8 Apr 2003, Nathan Scott wrote:

> On Mon, Apr 07, 2003 at 01:46:43PM -0600, James Rich wrote:
> > bits.  If it is correct that XFS supports such large file sizes, how are
> > the file contents accessed?  And does the kernel syscall allow larger
> > offsets?
>
> There is an lseeek64 variant which takes a 64 bit offset on all
> platforms.  xfs_mkfile.c uses this, for example.

Is there a performance difference using lseek() and lseek64()?  If there
is, does that difference exist on 64 bit platforms?

James Rich


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