Commit 0725c0c9 authored by Anand Jain's avatar Anand Jain Committed by David Sterba
Browse files

btrfs: move btrfs_dev_replace_update_device_in_mapping_tree to drop declaration 



The function is short and simple, we can get rid of the declaration as
it's not necessary for a static function. Move it before its first
caller.  No functional changes.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c83b60c0

fs/btrfs/dev-replace.c

+26 −30
Original line number Diff line number Diff line
@@ -64,10 +64,6 @@ 


static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,

				       int scrub_ret);

static void btrfs_dev_replace_update_device_in_mapping_tree(

						struct btrfs_fs_info *fs_info,

						struct btrfs_device *srcdev,

						struct btrfs_device *tgtdev);

static int btrfs_dev_replace_kthread(void *data);



int btrfs_init_dev_replace(struct btrfs_fs_info *fs_info)
@@ -628,6 +624,32 @@ static int btrfs_set_target_alloc_state(struct btrfs_device *srcdev, 
	return ret;

}



static void btrfs_dev_replace_update_device_in_mapping_tree(

						struct btrfs_fs_info *fs_info,

						struct btrfs_device *srcdev,

						struct btrfs_device *tgtdev)

{

	struct extent_map_tree *em_tree = &fs_info->mapping_tree;

	struct extent_map *em;

	struct map_lookup *map;

	u64 start = 0;

	int i;



	write_lock(&em_tree->lock);

	do {

		em = lookup_extent_mapping(em_tree, start, (u64)-1);

		if (!em)

			break;

		map = em->map_lookup;

		for (i = 0; i < map->num_stripes; i++)

			if (srcdev == map->stripes[i].dev)

				map->stripes[i].dev = tgtdev;

		start = em->start + em->len;

		free_extent_map(em);

	} while (start);

	write_unlock(&em_tree->lock);

}



static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,

				       int scrub_ret)

{
@@ -797,32 +819,6 @@ error: 
	return 0;

}



static void btrfs_dev_replace_update_device_in_mapping_tree(

						struct btrfs_fs_info *fs_info,

						struct btrfs_device *srcdev,

						struct btrfs_device *tgtdev)

{

	struct extent_map_tree *em_tree = &fs_info->mapping_tree;

	struct extent_map *em;

	struct map_lookup *map;

	u64 start = 0;

	int i;



	write_lock(&em_tree->lock);

	do {

		em = lookup_extent_mapping(em_tree, start, (u64)-1);

		if (!em)

			break;

		map = em->map_lookup;

		for (i = 0; i < map->num_stripes; i++)

			if (srcdev == map->stripes[i].dev)

				map->stripes[i].dev = tgtdev;

		start = em->start + em->len;

		free_extent_map(em);

	} while (start);

	write_unlock(&em_tree->lock);

}



/*

 * Read progress of device replace status according to the state and last

 * stored position. The value format is the same as for

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