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authorAndre Noll <maan@systemlinux.org>2009-01-09 08:31:08 +1100
committerNeilBrown <neilb@suse.de>2009-01-09 08:31:08 +1100
commitccacc7d2cf03114a24ab903f710118e9e5d43273 (patch)
treec856e2a17f6c6a26996a8cfba87680a2375061d5 /include/linux/raid/raid0.h
parent83838ed87898e0a8ff8dbf001e54e6c017f0a011 (diff)
md: raid0: make hash_spacing and preshift sector-based.
This patch renames the hash_spacing and preshift members of struct raid0_private_data to spacing and sector_shift respectively and changes the semantics as follows: We always have spacing = 2 * hash_spacing. In case sizeof(sector_t) > sizeof(u32) we also have sector_shift = preshift + 1 while sector_shift = preshift = 0 otherwise. Note that the values of nb_zone and zone are unaffected by these changes because in the sector_div() preceeding the assignement of these two variables both arguments double. Signed-off-by: Andre Noll <maan@systemlinux.org> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'include/linux/raid/raid0.h')
-rw-r--r--include/linux/raid/raid0.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/raid/raid0.h b/include/linux/raid/raid0.h
index c12521d027e..fd42aa87c39 100644
--- a/include/linux/raid/raid0.h
+++ b/include/linux/raid/raid0.h
@@ -19,8 +19,8 @@ struct raid0_private_data
mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
int nr_strip_zones;
- sector_t hash_spacing;
- int preshift; /* shift this before divide by hash_spacing */
+ sector_t spacing;
+ int sector_shift; /* shift this before divide by spacing */
};
typedef struct raid0_private_data raid0_conf_t;