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Commit ebcc9301 authored by Nikolay Borisov's avatar Nikolay Borisov Committed by David Sterba
Browse files

btrfs: convert while loop to list_for_each_entry 



No functional changes, just make the loop a bit more readable

Signed-off-by: default avatarNikolay Borisov <nborisov@suse.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent ef954844

fs/btrfs/volumes.c

+2 −9
Original line number Diff line number Diff line
@@ -4629,7 +4629,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, 
{

	struct btrfs_fs_info *info = trans->fs_info;

	struct btrfs_fs_devices *fs_devices = info->fs_devices;

	struct list_head *cur;

	struct btrfs_device *device;

	struct map_lookup *map = NULL;

	struct extent_map_tree *em_tree;

	struct extent_map *em;
@@ -4703,22 +4703,15 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, 
	if (!devices_info)

		return -ENOMEM;



	cur = fs_devices->alloc_list.next;



	/*

	 * in the first pass through the devices list, we gather information

	 * about the available holes on each device.

	 */

	ndevs = 0;

	while (cur != &fs_devices->alloc_list) {

		struct btrfs_device *device;

	list_for_each_entry(device, &fs_devices->alloc_list, dev_alloc_list) {

		u64 max_avail;

		u64 dev_offset;



		device = list_entry(cur, struct btrfs_device, dev_alloc_list);



		cur = cur->next;



		if (!device->writeable) {

			WARN(1, KERN_ERR

			       "BTRFS: read-only device in alloc_list\n");