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path: root/drivers/md/multipath.c
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Diffstat (limited to 'drivers/md/multipath.c')
-rw-r--r--drivers/md/multipath.c28
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 849ad39f547b..399272f9c042 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -31,13 +31,12 @@
#define NR_RESERVED_BUFS 32
-
static int multipath_map (struct mpconf *conf)
{
int i, disks = conf->raid_disks;
/*
- * Later we do read balancing on the read side
+ * Later we do read balancing on the read side
* now we use the first available disk.
*/
@@ -68,7 +67,6 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh)
md_wakeup_thread(mddev->thread);
}
-
/*
* multipath_end_bh_io() is called when we have finished servicing a multipathed
* operation and are ready to return a success/failure code to the buffer
@@ -98,8 +96,8 @@ static void multipath_end_request(struct bio *bio, int error)
*/
char b[BDEVNAME_SIZE];
md_error (mp_bh->mddev, rdev);
- printk(KERN_ERR "multipath: %s: rescheduling sector %llu\n",
- bdevname(rdev->bdev,b),
+ printk(KERN_ERR "multipath: %s: rescheduling sector %llu\n",
+ bdevname(rdev->bdev,b),
(unsigned long long)bio->bi_iter.bi_sector);
multipath_reschedule_retry(mp_bh);
} else
@@ -145,12 +143,12 @@ static void multipath_status (struct seq_file *seq, struct mddev *mddev)
{
struct mpconf *conf = mddev->private;
int i;
-
+
seq_printf (seq, " [%d/%d] [", conf->raid_disks,
conf->raid_disks - mddev->degraded);
for (i = 0; i < conf->raid_disks; i++)
seq_printf (seq, "%s",
- conf->multipaths[i].rdev &&
+ conf->multipaths[i].rdev &&
test_bit(In_sync, &conf->multipaths[i].rdev->flags) ? "U" : "_");
seq_printf (seq, "]");
}
@@ -195,7 +193,7 @@ static void multipath_error (struct mddev *mddev, struct md_rdev *rdev)
* first check if this is a queued request for a device
* which has just failed.
*/
- printk(KERN_ALERT
+ printk(KERN_ALERT
"multipath: only one IO path left and IO error.\n");
/* leave it active... it's all we have */
return;
@@ -242,7 +240,6 @@ static void print_multipath_conf (struct mpconf *conf)
}
}
-
static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
{
struct mpconf *conf = mddev->private;
@@ -325,8 +322,6 @@ abort:
return err;
}
-
-
/*
* This is a kernel thread which:
*
@@ -356,7 +351,7 @@ static void multipathd(struct md_thread *thread)
bio = &mp_bh->bio;
bio->bi_iter.bi_sector = mp_bh->master_bio->bi_iter.bi_sector;
-
+
if ((mp_bh->path = multipath_map (conf))<0) {
printk(KERN_ALERT "multipath: %s: unrecoverable IO read"
" error for block %llu\n",
@@ -414,7 +409,7 @@ static int multipath_run (struct mddev *mddev)
conf = kzalloc(sizeof(struct mpconf), GFP_KERNEL);
mddev->private = conf;
if (!conf) {
- printk(KERN_ERR
+ printk(KERN_ERR
"multipath: couldn't allocate memory for %s\n",
mdname(mddev));
goto out;
@@ -423,7 +418,7 @@ static int multipath_run (struct mddev *mddev)
conf->multipaths = kzalloc(sizeof(struct multipath_info)*mddev->raid_disks,
GFP_KERNEL);
if (!conf->multipaths) {
- printk(KERN_ERR
+ printk(KERN_ERR
"multipath: couldn't allocate memory for %s\n",
mdname(mddev));
goto out_free_conf;
@@ -469,7 +464,7 @@ static int multipath_run (struct mddev *mddev)
conf->pool = mempool_create_kmalloc_pool(NR_RESERVED_BUFS,
sizeof(struct multipath_bh));
if (conf->pool == NULL) {
- printk(KERN_ERR
+ printk(KERN_ERR
"multipath: couldn't allocate memory for %s\n",
mdname(mddev));
goto out_free_conf;
@@ -485,7 +480,7 @@ static int multipath_run (struct mddev *mddev)
}
}
- printk(KERN_INFO
+ printk(KERN_INFO
"multipath: array %s active with %d out of %d IO paths\n",
mdname(mddev), conf->raid_disks - mddev->degraded,
mddev->raid_disks);
@@ -512,7 +507,6 @@ out:
return -EIO;
}
-
static int multipath_stop (struct mddev *mddev)
{
struct mpconf *conf = mddev->private;