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| author | Sandeep K Sinha <sandeepksinha@gmail.com> | 2009-06-16 10:55:26 +0400 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2009-06-16 10:55:26 +0400 |
| commit | 45d4582f219619e368ea91ea1189085e1c5f1969 (patch) | |
| tree | 15c38d1090d67ecb600c395a5155f2630804d851 /drivers/md/linear.h | |
| parent | 070ec55d07157a3041f92654135c3c6e2eaaf901 (diff) | |
| download | linux-45d4582f219619e368ea91ea1189085e1c5f1969.tar.xz | |
md: Removal of hash table in linear raid
Get rid of sector_div and hash table for linear raid and replace
with a linear search in which_dev.
The hash table adds a lot of complexity for little if any gain.
Ultimately a binary search will be used which will have smaller
cache foot print, a similar number of memory access, and no
divisions.
Signed-off-by: Sandeep K Sinha <sandeepksinha@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/linear.h')
| -rw-r--r-- | drivers/md/linear.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/drivers/md/linear.h b/drivers/md/linear.h index 76078f1cded0..721a878403d1 100644 --- a/drivers/md/linear.h +++ b/drivers/md/linear.h @@ -12,12 +12,7 @@ typedef struct dev_info dev_info_t; struct linear_private_data { struct linear_private_data *prev; /* earlier version */ - dev_info_t **hash_table; - sector_t spacing; sector_t array_sectors; - int sector_shift; /* shift before dividing - * by spacing - */ dev_info_t disks[0]; }; |