Re: [Lse-tech] [PATCH]Disk IO statisitics gathering for all disks
Christoph Hellwig (hch@caldera.de)
Thu, 8 Nov 2001 23:39:12 +0100
On Thu, Nov 08, 2001 at 02:33:44PM -0800, Mingming cao wrote:
> Hello,
>
> Attached is a patch to dynamically allocate the data buffers for the
> disk statistics, and to extend the gathering of disk statistics to
> include major numbers greater than 15.
>
> A disk statistics structure is allocated when a new block device
> is registered. A global array (kstat.dkdrive_info[]) is used
> to hold the address of the statistics structures for all block
> devices. The disk statistics lookup is the same as before: indexed by
> the major number and the disk number.
A very minor nitpick: please use struct dk_stat (or disk_stat) instead of
dk_stat_t - it is by no means an opaque type.
Christoph
--
Of course it doesn't work. We've performed a software upgrade.
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