ext4_mb_discard_preallocations 4586 fs/ext4/mballoc.c 		freed  = ext4_mb_discard_preallocations(sb, ac->ac_o_ex.fe_len);
ext4_mb_discard_preallocations  749 include/trace/events/ext4.h TRACE_EVENT(ext4_mb_discard_preallocations,