Commit 1751850f authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: remove unused btrfs_cond_migrate_bytes 



The last user of this was removed in 7f9fe614 ("btrfs: improve
global reserve stealing logic"), drop this code as it's no longer called
by anybody.

Reviewed-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 911bd75a

fs/btrfs/block-rsv.c

+0 −25
Original line number Diff line number Diff line
@@ -325,31 +325,6 @@ void btrfs_block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv, 
	spin_unlock(&block_rsv->lock);

}



int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info,

			     struct btrfs_block_rsv *dest, u64 num_bytes,

			     int min_factor)

{

	struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;

	u64 min_bytes;



	if (global_rsv->space_info != dest->space_info)

		return -ENOSPC;



	spin_lock(&global_rsv->lock);

	min_bytes = div_factor(global_rsv->size, min_factor);

	if (global_rsv->reserved < min_bytes + num_bytes) {

		spin_unlock(&global_rsv->lock);

		return -ENOSPC;

	}

	global_rsv->reserved -= num_bytes;

	if (global_rsv->reserved < global_rsv->size)

		global_rsv->full = false;

	spin_unlock(&global_rsv->lock);



	btrfs_block_rsv_add_bytes(dest, num_bytes, true);

	return 0;

}



void btrfs_update_global_block_rsv(struct btrfs_fs_info *fs_info)

{

	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;

fs/btrfs/block-rsv.h

+0 −3
Original line number Diff line number Diff line
@@ -70,9 +70,6 @@ int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, 
			    struct btrfs_block_rsv *dst_rsv, u64 num_bytes,

			    bool update_size);

int btrfs_block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv, u64 num_bytes);

int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info,

			     struct btrfs_block_rsv *dest, u64 num_bytes,

			     int min_factor);

void btrfs_block_rsv_add_bytes(struct btrfs_block_rsv *block_rsv,

			       u64 num_bytes, bool update_size);

u64 btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,