From: Christoph Hellwig <hch@infradead.org>
To: Christoph Hellwig <hch@infradead.org>, xfs@oss.sgi.com
Subject: Re: [PATCH 3/7] sanitize xlog_in_core_t definition
Date: Tue, 28 Oct 2008 05:16:14 -0400 [thread overview]
Message-ID: <20081028091614.GC1662@infradead.org> (raw)
In-Reply-To: <20081028051734.GC17077@disturbed>
On Tue, Oct 28, 2008 at 04:17:34PM +1100, Dave Chinner wrote:
> > -typedef union xlog_in_core2 {
> > - xlog_rec_header_t hic_header;
> > - xlog_rec_ext_header_t hic_xheader;
> > - char hic_sector[XLOG_HEADER_SIZE];
> > -} xlog_in_core_2_t;
> > -
> > -typedef struct xlog_in_core {
> > - xlog_iclog_fields_t hic_fields;
> > - xlog_in_core_2_t *hic_data;
> > + xlog_in_core_2_t *ic_data;
> > +#define ic_header ic_data->hic_header
> > } xlog_in_core_t;
>
> The ic_data pointer should not be on the same cacheline as the
> reference count seeing as it is read-only field.
Makes sense, but I'll leave that for a separate patch to keep things
bisectable.
next prev parent reply other threads:[~2008-10-28 9:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-27 13:39 [PATCH 3/7] sanitize xlog_in_core_t definition Christoph Hellwig
2008-10-28 5:17 ` Dave Chinner
2008-10-28 9:16 ` Christoph Hellwig [this message]
2008-10-28 21:51 ` Dave Chinner
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