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From: Michael Trimarchi <trimarchimichael@yahoo.it>
To: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>, akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] VFS: make file->f_pos access atomic on 32bit arch
Date: Tue, 16 Sep 2008 11:11:59 +0000 (GMT)	[thread overview]
Message-ID: <58603.86657.qm@web26202.mail.ukl.yahoo.com> (raw)

Hi,




> +        if (offset != file_pos_read(file))
> +            file_pos_write(file, offset);
>         retval = offset;
>     }

Is not more efficient here a compare xchg operation?

Regards Michael

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             reply	other threads:[~2008-09-16 11:18 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-16 11:11 Michael Trimarchi [this message]
2008-09-16 12:54 ` Nick Piggin
  -- strict thread matches above, loose matches on Subject: below --
2008-09-16 16:01 Michael Trimarchi
     [not found] <bcGib-3Fp-7@gated-at.bofh.it>
2008-09-16 15:32 ` Bodo Eggert
2008-09-16 14:57 Michael Trimarchi
2008-09-17  1:24 ` Nick Piggin
2008-09-18  9:59   ` Hisashi Hifumi
2008-09-18  7:08 ` Hisashi Hifumi
2008-09-16 13:57 Michael Trimarchi
2008-09-16 14:11 ` Nick Piggin
2008-09-16 10:35 Hisashi Hifumi

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