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imsm: round down array size at Create 

Store the 1MB rounded down size of the array at create time.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-04-12 00:58:28 -07:00
parent da9b4a62af
commit 979d38be50
1 changed files with 4 additions and 0 deletions
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4
super-intel.c
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@ -53,6 +53,7 @@
#define MPB_SECTOR_CNT 418
#define IMSM_RESERVED_SECTORS 4096
#define SECT_PER_MB_SHIFT 11
/* Disk configuration info. */
#define IMSM_MAX_DEVICES 255
@ -2377,6 +2378,9 @@ static int init_super_imsm_volume(struct supertype *st, mdu_array_info_t *info,
array_blocks = calc_array_size(info->level, info->raid_disks,
info->layout, info->chunk_size,
info->size*2);
/* round array size down to closest MB */
array_blocks = (array_blocks >> SECT_PER_MB_SHIFT) << SECT_PER_MB_SHIFT;
dev->size_low = __cpu_to_le32((__u32) array_blocks);
dev->size_high = __cpu_to_le32((__u32) (array_blocks >> 32));
dev->status = __cpu_to_le32(0);