trace_ext4_mballoc_discard 3845 fs/ext4/mballoc.c 		trace_ext4_mballoc_discard(sb, NULL, group, bit, next - bit);
trace_ext4_mballoc_discard 3884 fs/ext4/mballoc.c 	trace_ext4_mballoc_discard(sb, NULL, group, bit, pa->pa_len);