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path: root/drivers/md/raid0.c
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Diffstat (limited to 'drivers/md/raid0.c')
-rw-r--r--drivers/md/raid0.c67
1 files changed, 28 insertions, 39 deletions
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index b21e101183f4..78addfe4a0c9 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -37,7 +37,6 @@ static void dump_zones(struct mddev *mddev)
int j, k;
sector_t zone_size = 0;
sector_t zone_start = 0;
- char b[BDEVNAME_SIZE];
struct r0conf *conf = mddev->private;
int raid_disks = conf->strip_zone[0].nb_dev;
pr_debug("md: RAID0 configuration for %s - %d zone%s\n",
@@ -48,9 +47,8 @@ static void dump_zones(struct mddev *mddev)
int len = 0;
for (k = 0; k < conf->strip_zone[j].nb_dev; k++)
- len += snprintf(line+len, 200-len, "%s%s", k?"/":"",
- bdevname(conf->devlist[j*raid_disks
- + k]->bdev, b));
+ len += snprintf(line+len, 200-len, "%s%pg", k?"/":"",
+ conf->devlist[j * raid_disks + k]->bdev);
pr_debug("md: zone%d=[%s]\n", j, line);
zone_size = conf->strip_zone[j].zone_end - zone_start;
@@ -69,8 +67,6 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
struct md_rdev *smallest, *rdev1, *rdev2, *rdev, **dev;
struct strip_zone *zone;
int cnt;
- char b[BDEVNAME_SIZE];
- char b2[BDEVNAME_SIZE];
struct r0conf *conf = kzalloc(sizeof(*conf), GFP_KERNEL);
unsigned blksize = 512;
@@ -78,9 +74,9 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
if (!conf)
return -ENOMEM;
rdev_for_each(rdev1, mddev) {
- pr_debug("md/raid0:%s: looking at %s\n",
+ pr_debug("md/raid0:%s: looking at %pg\n",
mdname(mddev),
- bdevname(rdev1->bdev, b));
+ rdev1->bdev);
c = 0;
/* round size to chunk_size */
@@ -92,12 +88,12 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
rdev1->bdev->bd_disk->queue));
rdev_for_each(rdev2, mddev) {
- pr_debug("md/raid0:%s: comparing %s(%llu)"
- " with %s(%llu)\n",
+ pr_debug("md/raid0:%s: comparing %pg(%llu)"
+ " with %pg(%llu)\n",
mdname(mddev),
- bdevname(rdev1->bdev,b),
+ rdev1->bdev,
(unsigned long long)rdev1->sectors,
- bdevname(rdev2->bdev,b2),
+ rdev2->bdev,
(unsigned long long)rdev2->sectors);
if (rdev2 == rdev1) {
pr_debug("md/raid0:%s: END\n",
@@ -128,21 +124,6 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
pr_debug("md/raid0:%s: FINAL %d zones\n",
mdname(mddev), conf->nr_strip_zones);
- if (conf->nr_strip_zones == 1) {
- conf->layout = RAID0_ORIG_LAYOUT;
- } else if (mddev->layout == RAID0_ORIG_LAYOUT ||
- mddev->layout == RAID0_ALT_MULTIZONE_LAYOUT) {
- conf->layout = mddev->layout;
- } else if (default_layout == RAID0_ORIG_LAYOUT ||
- default_layout == RAID0_ALT_MULTIZONE_LAYOUT) {
- conf->layout = default_layout;
- } else {
- pr_err("md/raid0:%s: cannot assemble multi-zone RAID0 with default_layout setting\n",
- mdname(mddev));
- pr_err("md/raid0: please set raid0.default_layout to 1 or 2\n");
- err = -ENOTSUPP;
- goto abort;
- }
/*
* now since we have the hard sector sizes, we can make sure
* chunk size is a multiple of that sector size
@@ -240,15 +221,15 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
for (j=0; j<cnt; j++) {
rdev = conf->devlist[j];
if (rdev->sectors <= zone->dev_start) {
- pr_debug("md/raid0:%s: checking %s ... nope\n",
+ pr_debug("md/raid0:%s: checking %pg ... nope\n",
mdname(mddev),
- bdevname(rdev->bdev, b));
+ rdev->bdev);
continue;
}
- pr_debug("md/raid0:%s: checking %s ..."
+ pr_debug("md/raid0:%s: checking %pg ..."
" contained as device %d\n",
mdname(mddev),
- bdevname(rdev->bdev, b), c);
+ rdev->bdev, c);
dev[c] = rdev;
c++;
if (!smallest || rdev->sectors < smallest->sectors) {
@@ -273,6 +254,22 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf)
(unsigned long long)smallest->sectors);
}
+ if (conf->nr_strip_zones == 1 || conf->strip_zone[1].nb_dev == 1) {
+ conf->layout = RAID0_ORIG_LAYOUT;
+ } else if (mddev->layout == RAID0_ORIG_LAYOUT ||
+ mddev->layout == RAID0_ALT_MULTIZONE_LAYOUT) {
+ conf->layout = mddev->layout;
+ } else if (default_layout == RAID0_ORIG_LAYOUT ||
+ default_layout == RAID0_ALT_MULTIZONE_LAYOUT) {
+ conf->layout = default_layout;
+ } else {
+ pr_err("md/raid0:%s: cannot assemble multi-zone RAID0 with default_layout setting\n",
+ mdname(mddev));
+ pr_err("md/raid0: please set raid0.default_layout to 1 or 2\n");
+ err = -EOPNOTSUPP;
+ goto abort;
+ }
+
pr_debug("md/raid0:%s: done.\n", mdname(mddev));
*private_conf = conf;
@@ -361,7 +358,6 @@ static void free_conf(struct mddev *mddev, struct r0conf *conf)
kfree(conf->strip_zone);
kfree(conf->devlist);
kfree(conf);
- mddev->private = NULL;
}
static void raid0_free(struct mddev *mddev, void *priv)
@@ -399,7 +395,6 @@ static int raid0_run(struct mddev *mddev)
conf = mddev->private;
if (mddev->queue) {
struct md_rdev *rdev;
- bool discard_supported = false;
blk_queue_max_hw_sectors(mddev->queue, mddev->chunk_sectors);
blk_queue_max_write_zeroes_sectors(mddev->queue, mddev->chunk_sectors);
@@ -412,13 +407,7 @@ static int raid0_run(struct mddev *mddev)
rdev_for_each(rdev, mddev) {
disk_stack_limits(mddev->gendisk, rdev->bdev,
rdev->data_offset << 9);
- if (blk_queue_discard(bdev_get_queue(rdev->bdev)))
- discard_supported = true;
}
- if (!discard_supported)
- blk_queue_flag_clear(QUEUE_FLAG_DISCARD, mddev->queue);
- else
- blk_queue_flag_set(QUEUE_FLAG_DISCARD, mddev->queue);
}
/* calculate array device size */
generated by cgit v1.2.3 (git 2.46.0) at 2025-07-01 07:34:50 +0000