btrfs: reorg btrfs_close_one_device()
Moves closer to the caller and removes declaration Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -140,7 +140,6 @@ static int btrfs_relocate_sys_chunks(struct btrfs_root *root);
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static void __btrfs_reset_dev_stats(struct btrfs_device *dev);
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static void btrfs_dev_stat_print_on_error(struct btrfs_device *dev);
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static void btrfs_dev_stat_print_on_load(struct btrfs_device *device);
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static void btrfs_close_one_device(struct btrfs_device *device);
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DEFINE_MUTEX(uuid_mutex);
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static LIST_HEAD(fs_uuids);
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@ -853,6 +852,41 @@ static void free_device(struct rcu_head *head)
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schedule_work(&device->rcu_work);
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}
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static void btrfs_close_one_device(struct btrfs_device *device)
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{
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struct btrfs_fs_devices *fs_devices = device->fs_devices;
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struct btrfs_device *new_device;
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struct rcu_string *name;
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if (device->bdev)
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fs_devices->open_devices--;
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if (device->writeable &&
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device->devid != BTRFS_DEV_REPLACE_DEVID) {
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list_del_init(&device->dev_alloc_list);
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fs_devices->rw_devices--;
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}
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if (device->missing)
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fs_devices->missing_devices--;
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new_device = btrfs_alloc_device(NULL, &device->devid,
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device->uuid);
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BUG_ON(IS_ERR(new_device)); /* -ENOMEM */
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/* Safe because we are under uuid_mutex */
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if (device->name) {
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name = rcu_string_strdup(device->name->str, GFP_NOFS);
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BUG_ON(!name); /* -ENOMEM */
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rcu_assign_pointer(new_device->name, name);
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}
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list_replace_rcu(&device->dev_list, &new_device->dev_list);
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new_device->fs_devices = device->fs_devices;
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call_rcu(&device->rcu, free_device);
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}
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static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
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{
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struct btrfs_device *device, *tmp;
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@ -7138,38 +7172,3 @@ void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info)
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fs_devices = fs_devices->seed;
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}
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}
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static void btrfs_close_one_device(struct btrfs_device *device)
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{
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struct btrfs_fs_devices *fs_devices = device->fs_devices;
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struct btrfs_device *new_device;
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struct rcu_string *name;
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if (device->bdev)
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fs_devices->open_devices--;
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if (device->writeable &&
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device->devid != BTRFS_DEV_REPLACE_DEVID) {
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list_del_init(&device->dev_alloc_list);
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fs_devices->rw_devices--;
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}
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if (device->missing)
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fs_devices->missing_devices--;
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new_device = btrfs_alloc_device(NULL, &device->devid,
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device->uuid);
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BUG_ON(IS_ERR(new_device)); /* -ENOMEM */
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/* Safe because we are under uuid_mutex */
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if (device->name) {
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name = rcu_string_strdup(device->name->str, GFP_NOFS);
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BUG_ON(!name); /* -ENOMEM */
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rcu_assign_pointer(new_device->name, name);
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}
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list_replace_rcu(&device->dev_list, &new_device->dev_list);
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new_device->fs_devices = device->fs_devices;
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call_rcu(&device->rcu, free_device);
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}
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