btrfs: use list_for_each_entry_safe in free-space-cache.c

Use list_for_each_entry_safe() instead of list_for_each_safe() to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Geliang Tang 2015-12-18 22:17:00 +08:00 • committed by David Sterba
commit 7ae1681e12