diff options
Diffstat (limited to 'drivers/md/linear.c')
| -rw-r--r-- | drivers/md/linear.c | 62 |
1 files changed, 30 insertions, 32 deletions
diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 6cd2c313e80..c3273efd08c 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -19,6 +19,7 @@ #include <linux/blkdev.h> #include <linux/raid/md_u.h> #include <linux/seq_file.h> +#include <linux/module.h> #include <linux/slab.h> #include "md.h" #include "linear.h" @@ -26,10 +27,10 @@ /* * find which device holds a particular offset */ -static inline dev_info_t *which_dev(mddev_t *mddev, sector_t sector) +static inline struct dev_info *which_dev(struct mddev *mddev, sector_t sector) { int lo, mid, hi; - linear_conf_t *conf; + struct linear_conf *conf; lo = 0; hi = mddev->raid_disks - 1; @@ -63,8 +64,8 @@ static int linear_mergeable_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *biovec) { - mddev_t *mddev = q->queuedata; - dev_info_t *dev0; + struct mddev *mddev = q->queuedata; + struct dev_info *dev0; unsigned long maxsectors, bio_sectors = bvm->bi_size >> 9; sector_t sector = bvm->bi_sector + get_start_sect(bvm->bi_bdev); @@ -89,8 +90,8 @@ static int linear_mergeable_bvec(struct request_queue *q, static int linear_congested(void *data, int bits) { - mddev_t *mddev = data; - linear_conf_t *conf; + struct mddev *mddev = data; + struct linear_conf *conf; int i, ret = 0; if (mddev_congested(mddev, bits)) @@ -108,9 +109,9 @@ static int linear_congested(void *data, int bits) return ret; } -static sector_t linear_size(mddev_t *mddev, sector_t sectors, int raid_disks) +static sector_t linear_size(struct mddev *mddev, sector_t sectors, int raid_disks) { - linear_conf_t *conf; + struct linear_conf *conf; sector_t array_sectors; rcu_read_lock(); @@ -123,13 +124,13 @@ static sector_t linear_size(mddev_t *mddev, sector_t sectors, int raid_disks) return array_sectors; } -static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) +static struct linear_conf *linear_conf(struct mddev *mddev, int raid_disks) { - linear_conf_t *conf; - mdk_rdev_t *rdev; + struct linear_conf *conf; + struct md_rdev *rdev; int i, cnt; - conf = kzalloc (sizeof (*conf) + raid_disks*sizeof(dev_info_t), + conf = kzalloc (sizeof (*conf) + raid_disks*sizeof(struct dev_info), GFP_KERNEL); if (!conf) return NULL; @@ -139,7 +140,7 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) list_for_each_entry(rdev, &mddev->disks, same_set) { int j = rdev->raid_disk; - dev_info_t *disk = conf->disks + j; + struct dev_info *disk = conf->disks + j; sector_t sectors; if (j < 0 || j >= raid_disks || disk->rdev) { @@ -194,9 +195,9 @@ out: return NULL; } -static int linear_run (mddev_t *mddev) +static int linear_run (struct mddev *mddev) { - linear_conf_t *conf; + struct linear_conf *conf; if (md_check_no_bitmap(mddev)) return -EINVAL; @@ -213,7 +214,7 @@ static int linear_run (mddev_t *mddev) return md_integrity_register(mddev); } -static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) +static int linear_add(struct mddev *mddev, struct md_rdev *rdev) { /* Adding a drive to a linear array allows the array to grow. * It is permitted if the new drive has a matching superblock @@ -223,7 +224,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) * The current one is never freed until the array is stopped. * This avoids races. */ - linear_conf_t *newconf, *oldconf; + struct linear_conf *newconf, *oldconf; if (rdev->saved_raid_disk != mddev->raid_disks) return -EINVAL; @@ -245,9 +246,9 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev) return 0; } -static int linear_stop (mddev_t *mddev) +static int linear_stop (struct mddev *mddev) { - linear_conf_t *conf = mddev->private; + struct linear_conf *conf = mddev->private; /* * We do not require rcu protection here since @@ -264,14 +265,14 @@ static int linear_stop (mddev_t *mddev) return 0; } -static int linear_make_request (mddev_t *mddev, struct bio *bio) +static void linear_make_request(struct mddev *mddev, struct bio *bio) { - dev_info_t *tmp_dev; + struct dev_info *tmp_dev; sector_t start_sector; if (unlikely(bio->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bio); - return 0; + return; } rcu_read_lock(); @@ -293,7 +294,7 @@ static int linear_make_request (mddev_t *mddev, struct bio *bio) (unsigned long long)start_sector); rcu_read_unlock(); bio_io_error(bio); - return 0; + return; } if (unlikely(bio->bi_sector + (bio->bi_size >> 9) > tmp_dev->end_sector)) { @@ -307,30 +308,27 @@ static int linear_make_request (mddev_t *mddev, struct bio *bio) bp = bio_split(bio, end_sector - bio->bi_sector); - if (linear_make_request(mddev, &bp->bio1)) - generic_make_request(&bp->bio1); - if (linear_make_request(mddev, &bp->bio2)) - generic_make_request(&bp->bio2); + linear_make_request(mddev, &bp->bio1); + linear_make_request(mddev, &bp->bio2); bio_pair_release(bp); - return 0; + return; } bio->bi_bdev = tmp_dev->rdev->bdev; bio->bi_sector = bio->bi_sector - start_sector + tmp_dev->rdev->data_offset; rcu_read_unlock(); - - return 1; + generic_make_request(bio); } -static void linear_status (struct seq_file *seq, mddev_t *mddev) +static void linear_status (struct seq_file *seq, struct mddev *mddev) { seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2); } -static struct mdk_personality linear_personality = +static struct md_personality linear_personality = { .name = "linear", .level = LEVEL_LINEAR, |