diff options
author | Andre Noll <maan@systemlinux.org> | 2009-01-08 16:31:08 -0500 |
---|---|---|
committer | NeilBrown <neilb@suse.de> | 2009-01-08 16:31:08 -0500 |
commit | ccacc7d2cf03114a24ab903f710118e9e5d43273 (patch) | |
tree | c856e2a17f6c6a26996a8cfba87680a2375061d5 /include | |
parent | 83838ed87898e0a8ff8dbf001e54e6c017f0a011 (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')
-rw-r--r-- | include/linux/raid/raid0.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/raid/raid0.h b/include/linux/raid/raid0.h index c12521d027e2..fd42aa87c391 100644 --- a/include/linux/raid/raid0.h +++ b/include/linux/raid/raid0.h | |||
@@ -19,8 +19,8 @@ struct raid0_private_data | |||
19 | mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */ | 19 | mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */ |
20 | int nr_strip_zones; | 20 | int nr_strip_zones; |
21 | 21 | ||
22 | sector_t hash_spacing; | 22 | sector_t spacing; |
23 | int preshift; /* shift this before divide by hash_spacing */ | 23 | int sector_shift; /* shift this before divide by spacing */ |
24 | }; | 24 | }; |
25 | 25 | ||
26 | typedef struct raid0_private_data raid0_conf_t; | 26 | typedef struct raid0_private_data raid0_conf_t; |