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49f357a22b
storing ->sectors is redundant as is can be computed from the difference z->zone_end - (z-1)->zone_end The one place where it is used, it is just as efficient to use a zone_end value instead. And removing it makes strip_zone smaller, so they array of these that is searched on every request has a better chance to say in cache. So discard the field and get the value from elsewhere. Signed-off-by: NeilBrown <neilb@suse.de>
24 lines
573 B
C
24 lines
573 B
C
#ifndef _RAID0_H
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#define _RAID0_H
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struct strip_zone
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{
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sector_t zone_end; /* Start of the next zone (in sectors) */
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sector_t dev_start; /* Zone offset in real dev (in sectors) */
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int nb_dev; /* # of devices attached to the zone */
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mdk_rdev_t **dev; /* Devices attached to the zone */
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};
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struct raid0_private_data
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{
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struct strip_zone *strip_zone;
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mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
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int nr_strip_zones;
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};
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typedef struct raid0_private_data raid0_conf_t;
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#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
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#endif
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