From: Olof Johansson <olof@austin.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Paul Mackerras <paulus@samba.org>,
viro@parcelfarce.linux.theplanet.co.uk,
linux-kernel@vger.kernel.org
Subject: Re: Alignment of bitmaps for ext2_set_bit et al.
Date: Thu, 19 Aug 2004 15:39:40 -0500 [thread overview]
Message-ID: <4125100C.80703@austin.ibm.com> (raw)
In-Reply-To: <20040819042234.75020cbc.akpm@osdl.org>
Andrew Morton wrote:
>Paul Mackerras <paulus@samba.org> wrote:
>
>
>>Olof has made a patch that uses atomics for these on ppc64 rather than
>>locking and unlocking a lock, but it will only work correctly if the
>>bitmap is always 8-byte aligned.
>>
>>
>
>Sounds sane, as long as you get firmly notified when a poorly-aligned
>address is fed in.
>
>
The notification is in the form of an unalignment trap resulting in a
panic, is that firm enough? :-)
-Olof
prev parent reply other threads:[~2004-08-19 20:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-19 11:16 Alignment of bitmaps for ext2_set_bit et al Paul Mackerras
2004-08-19 11:22 ` Andrew Morton
2004-08-19 14:42 ` David S. Miller
2004-08-19 20:39 ` Olof Johansson [this message]
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