lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

md: Make mddev->size sector-based.

Browse Source 
This patch renames the "size" field of struct mddev_s to "dev_sectors"
and stores the number of 512-byte sectors instead of the number of
1K-blocks in it.

All users of that field, including raid levels 1,4-6,10, are adjusted
accordingly. This simplifies the code a bit because it allows to get
rid of a couple of divisions/multiplications by two.

In order to make checkpatch happy, some minor coding style issues
have also been addressed. In particular, size_store() now uses
strict_strtoull() instead of simple_strtoull().

Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
Andre Noll
2009-03-31 14:33:13 +11:00
committed by NeilBrown
parent 575a80fa4f
commit 58c0fed400
8 changed files with 78 additions and 68 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/md/raid10.c
View File

@@ -1698,7 +1698,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
return 0;
skipped:
max_sector = mddev->size << 1;
max_sector = mddev->dev_sectors;
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery))
max_sector = mddev->resync_max_sectors;
if (sector_nr >= max_sector) {
@@ -2079,7 +2079,7 @@ static int run(mddev_t *mddev)
conf->far_offset = fo;
conf->chunk_mask = (sector_t)(mddev->chunk_size>>9)-1;
conf->chunk_shift = ffz(~mddev->chunk_size) - 9;
size = mddev->size >> (conf->chunk_shift-1);
size = mddev->dev_sectors >> conf->chunk_shift;
sector_div(size, fc);
size = size * conf->raid_disks;
sector_div(size, nc);
@@ -2092,7 +2092,7 @@ static int run(mddev_t *mddev)
*/
stride += conf->raid_disks - 1;
sector_div(stride, conf->raid_disks);
mddev->size = stride << (conf->chunk_shift-1);
mddev->dev_sectors = stride << conf->chunk_shift;
if (fo)
stride = 1;