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authorChristoph Hellwig <hch@lst.de>2020-11-16 17:57:11 +0300
committerJens Axboe <axboe@kernel.dk>2020-11-16 18:34:15 +0300
commit2c247c5169b50d58f63c0e82a58f457343e49d10 (patch)
treeda1c1257c7b99e936675de864781880be455ee7c
parentdc2985a8d583abe232e5882df9c8b67ac0d523e8 (diff)
downloadlinux-2c247c5169b50d58f63c0e82a58f457343e49d10.tar.xz
md: use set_capacity_and_notify
Use set_capacity_and_notify to set the size of both the disk and block device. This also gets the uevent notifications for the resize for free. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Song Liu <song@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--drivers/md/md-cluster.c6
-rw-r--r--drivers/md/md-linear.c3
-rw-r--r--drivers/md/md.c24
3 files changed, 13 insertions, 20 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 4aaf4820b6f6..87442dc59f6c 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -581,8 +581,7 @@ static int process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg)
process_metadata_update(mddev, msg);
break;
case CHANGE_CAPACITY:
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
+ set_capacity_and_notify(mddev->gendisk, mddev->array_sectors);
break;
case RESYNCING:
set_bit(MD_RESYNCING_REMOTE, &mddev->recovery);
@@ -1296,8 +1295,7 @@ static void update_size(struct mddev *mddev, sector_t old_dev_sectors)
if (ret)
pr_err("%s:%d: failed to send CHANGE_CAPACITY msg\n",
__func__, __LINE__);
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
+ set_capacity_and_notify(mddev->gendisk, mddev->array_sectors);
} else {
/* revert to previous sectors */
ret = mddev->pers->resize(mddev, old_dev_sectors);
diff --git a/drivers/md/md-linear.c b/drivers/md/md-linear.c
index 5ab22069b5be..98f1b4b2bdce 100644
--- a/drivers/md/md-linear.c
+++ b/drivers/md/md-linear.c
@@ -200,9 +200,8 @@ static int linear_add(struct mddev *mddev, struct md_rdev *rdev)
"copied raid_disks doesn't match mddev->raid_disks");
rcu_assign_pointer(mddev->private, newconf);
md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
- set_capacity(mddev->gendisk, mddev->array_sectors);
+ set_capacity_and_notify(mddev->gendisk, mddev->array_sectors);
mddev_resume(mddev);
- revalidate_disk_size(mddev->gendisk, true);
kfree_rcu(oldconf, rcu);
return 0;
}
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 3c79243e9d07..b2edf5e0f965 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5355,10 +5355,9 @@ array_size_store(struct mddev *mddev, const char *buf, size_t len)
if (!err) {
mddev->array_sectors = sectors;
- if (mddev->pers) {
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
- }
+ if (mddev->pers)
+ set_capacity_and_notify(mddev->gendisk,
+ mddev->array_sectors);
}
mddev_unlock(mddev);
return err ?: len;
@@ -6108,8 +6107,7 @@ int do_md_run(struct mddev *mddev)
md_wakeup_thread(mddev->thread);
md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
+ set_capacity_and_notify(mddev->gendisk, mddev->array_sectors);
clear_bit(MD_NOT_READY, &mddev->flags);
mddev->changed = 1;
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
@@ -6424,10 +6422,9 @@ static int do_md_stop(struct mddev *mddev, int mode,
if (rdev->raid_disk >= 0)
sysfs_unlink_rdev(mddev, rdev);
- set_capacity(disk, 0);
+ set_capacity_and_notify(disk, 0);
mutex_unlock(&mddev->open_mutex);
mddev->changed = 1;
- revalidate_disk_size(disk, true);
if (mddev->ro)
mddev->ro = 0;
@@ -7258,8 +7255,8 @@ static int update_size(struct mddev *mddev, sector_t num_sectors)
if (mddev_is_clustered(mddev))
md_cluster_ops->update_size(mddev, old_dev_sectors);
else if (mddev->queue) {
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
+ set_capacity_and_notify(mddev->gendisk,
+ mddev->array_sectors);
}
}
return rv;
@@ -9036,10 +9033,9 @@ void md_do_sync(struct md_thread *thread)
mddev_lock_nointr(mddev);
md_set_array_sectors(mddev, mddev->pers->size(mddev, 0, 0));
mddev_unlock(mddev);
- if (!mddev_is_clustered(mddev)) {
- set_capacity(mddev->gendisk, mddev->array_sectors);
- revalidate_disk_size(mddev->gendisk, true);
- }
+ if (!mddev_is_clustered(mddev))
+ set_capacity_and_notify(mddev->gendisk,
+ mddev->array_sectors);
}
spin_lock(&mddev->lock);