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From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Andi Kleen <ak@muc.de>
Cc: linux-kernel@vger.kernel.org, peter@chubb.wattle.id.au
Subject: Re: statfs64 missing
Date: 16 Oct 2002 16:16:33 +0200	[thread overview]
Message-ID: <shs7kgipiym.fsf@charged.uio.no> (raw)
In-Reply-To: <20021016140658.GA8461@averell>

>>>>> " " == Andi Kleen <ak@muc.de> writes:

     > This problem already exists on 2.4. You can actually access NFS
     > servers which have more than 2TB of disk space. NFS uses the
     > local write size as block size. When you are lucky then
     > 0xfffffffff*wsize is bigger than what your NFS server
     > reports. If not you get wrong results.  The only workaround
     > currently is to increase wsize, but that has its limits too.

     > Fixing it properly probably requires statfs64(). Any reason why
     > this was not included in the sector_t patchkit ?

If fixing NFS is the main concern, and we're adding a new syscall,
could someone also add in an equivalent of the Solaris
etc. 'f_frsize'.

Reporting the underlying local filessystem block size can be of use
for some applications. On NFS this value usually differs from the
'optimal transfer block size' aka. f_bsize.

Cheers,
  Trond

  reply	other threads:[~2002-10-16 14:11 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-16 14:06 statfs64 missing Andi Kleen
2002-10-16 14:16 ` Trond Myklebust [this message]
     [not found]   ` <15789.64263.606518.921166@wombat.chubb.wattle.id.au>
2002-10-17  0:01     ` Andi Kleen
2002-10-17 19:41       ` Benjamin LaHaise
2002-10-18  0:19         ` [PATCH] statfs64 no longer missing Peter Chubb
2002-10-18  0:26           ` Benjamin LaHaise
2002-10-18  2:31           ` Andi Kleen
2002-10-18  3:27             ` Peter Chubb
2002-10-18  6:17           ` Andreas Dilger
2002-10-18  6:31             ` Andi Kleen
2002-10-18  6:41               ` David S. Miller
  -- strict thread matches above, loose matches on Subject: below --
2002-10-17 20:28 statfs64 missing Steven French
2002-10-17 21:55 ` Andreas Dilger
2002-10-17 21:27 Petr Vandrovec

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