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Diffstat (limited to 'fs/btrfs/volumes.c')
-rw-r--r--fs/btrfs/volumes.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3f1c2c200691..74614e3b5ad3 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -492,10 +492,10 @@ static noinline int device_list_add(const char *path,
mutex_lock(&fs_devices->device_list_mutex);
list_add_rcu(&device->dev_list, &fs_devices->devices);
+ fs_devices->num_devices++;
mutex_unlock(&fs_devices->device_list_mutex);
device->fs_devices = fs_devices;
- fs_devices->num_devices++;
} else if (!device->name || strcmp(device->name->str, path)) {
name = rcu_string_strdup(path, GFP_NOFS);
if (!name)
@@ -1852,7 +1852,6 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
mutex_lock(&root->fs_info->fs_devices->device_list_mutex);
list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices,
synchronize_rcu);
- mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
list_splice_init(&fs_devices->alloc_list, &seed_devices->alloc_list);
list_for_each_entry(device, &seed_devices->devices, dev_list) {
@@ -1868,6 +1867,8 @@ static int btrfs_prepare_sprout(struct btrfs_root *root)
generate_random_uuid(fs_devices->fsid);
memcpy(root->fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE);
+ mutex_unlock(&root->fs_info->fs_devices->device_list_mutex);
+
super_flags = btrfs_super_flags(disk_super) &
~BTRFS_SUPER_FLAG_SEEDING;
btrfs_set_super_flags(disk_super, super_flags);