conf->working_disks duplicates information already available
in mddev->degraded.
So remove working_disks.
Signed-off-by: NeilBrown <neilb@xxxxxxx>
---
drivers/md/multipath.c | 22 +++++++++++-----------
drivers/md/multipath.h | 1 -
2 files changed, 11 insertions(+), 12 deletions(-)
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 410fb60..da3654a 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -176,7 +176,7 @@ static void multipath_status (struct seq_file *seq, mddev_t *mddev)
int i;
seq_printf (seq, " [%d/%d] [", conf->raid_disks,
- conf->working_disks);
+ conf->raid_disks - mddev->degraded);
for (i = 0; i < conf->raid_disks; i++)
seq_printf (seq, "%s",
conf->multipaths[i].rdev &&
@@ -217,7 +217,7 @@ static void multipath_error (mddev_t *mddev, mdk_rdev_t *rdev)
{
multipath_conf_t *conf = mddev->private;
- if (conf->working_disks <= 1) {
+ if (conf->raid_disks - mddev->degraded <= 1) {
/*
* Uh oh, we can do nothing if this is our last path, but
* first check if this is a queued request for a device
@@ -235,14 +235,13 @@ static void multipath_error (mddev_t *mddev, mdk_rdev_t *rdev)
clear_bit(In_sync, &rdev->flags);
set_bit(Faulty, &rdev->flags);
set_bit(MD_CHANGE_DEVS, &mddev->flags);
- conf->working_disks--;
mddev->degraded++;
printk(KERN_ALERT "multipath: IO failure on %s,"
" disabling IO path.\n"
"multipath: Operation continuing"
" on %d IO paths.\n",
bdevname (rdev->bdev,b),
- conf->working_disks);
+ conf->raid_disks - mddev->degraded);
}
}
}
@@ -257,7 +256,7 @@ static void print_multipath_conf (multipath_conf_t *conf)
printk("(conf==NULL)\n");
return;
}
- printk(" --- wd:%d rd:%d\n", conf->working_disks,
+ printk(" --- wd:%d rd:%d\n", conf->raid_disks - conf->mddev->degraded,
conf->raid_disks);
for (i = 0; i < conf->raid_disks; i++) {
@@ -304,7 +303,6 @@ static int multipath_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
PAGE_CACHE_SIZE - 1);
}
- conf->working_disks++;
mddev->degraded--;
rdev->raid_disk = path;
set_bit(In_sync, &rdev->flags);
@@ -421,6 +419,7 @@ static int multipath_run (mddev_t *mddev)
int disk_idx;
struct multipath_info *disk;
mdk_rdev_t *rdev;
+ int working_disks;
if (md_check_no_bitmap(mddev))
return -EINVAL;
@@ -455,7 +454,7 @@ static int multipath_run (mddev_t *mddev)
goto out_free_conf;
}
- conf->working_disks = 0;
+ working_disks = 0;
list_for_each_entry(rdev, &mddev->disks, same_set) {
disk_idx = rdev->raid_disk;
if (disk_idx < 0 ||
@@ -477,7 +476,7 @@ static int multipath_run (mddev_t *mddev)
}
if (!test_bit(Faulty, &rdev->flags))
- conf->working_disks++;
+ working_disks++;
}
conf->raid_disks = mddev->raid_disks;
@@ -485,12 +484,12 @@ static int multipath_run (mddev_t *mddev)
spin_lock_init(&conf->device_lock);
INIT_LIST_HEAD(&conf->retry_list);
- if (!conf->working_disks) {
+ if (!working_disks) {
printk(KERN_ERR "multipath: no operational IO paths for %s\n",
mdname(mddev));
goto out_free_conf;
}
- mddev->degraded = conf->raid_disks - conf->working_disks;
+ mddev->degraded = conf->raid_disks - working_disks;
conf->pool = mempool_create_kmalloc_pool(NR_RESERVED_BUFS,
sizeof(struct multipath_bh));
@@ -512,7 +511,8 @@ static int multipath_run (mddev_t *mddev)
printk(KERN_INFO
"multipath: array %s active with %d out of %d IO paths\n",
- mdname(mddev), conf->working_disks, mddev->raid_disks);
+ mdname(mddev), conf->raid_disks - mddev->degraded,
+ mddev->raid_disks);
/*
* Ok, everything is just fine now
*/
diff --git a/drivers/md/multipath.h b/drivers/md/multipath.h
index d1c2a8d..3c5a45e 100644
--- a/drivers/md/multipath.h
+++ b/drivers/md/multipath.h
@@ -9,7 +9,6 @@ struct multipath_private_data {
mddev_t *mddev;
struct multipath_info *multipaths;
int raid_disks;
- int working_disks;
spinlock_t device_lock;
struct list_head retry_list;
--
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