forked from luck/tmp_suning_uos_patched
ba13da47ff
These personalities currently set a max request size of one page when any member device has a merge_bvec_fn because they don't bother to call that function. This causes extra works in splitting and combining requests. So make the extra effort to call the merge_bvec_fn when it exists so that we end up with larger requests out the bottom. Signed-off-by: NeilBrown <neilb@suse.de>
20 lines
490 B
C
20 lines
490 B
C
#ifndef _RAID0_H
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#define _RAID0_H
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struct strip_zone {
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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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};
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struct r0conf {
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struct strip_zone *strip_zone;
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struct md_rdev **devlist; /* lists of rdevs, pointed to
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* by strip_zone->dev */
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int nr_strip_zones;
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int has_merge_bvec; /* at least one member has
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* a merge_bvec_fn */
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};
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#endif
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