utils → storage Relation

File in src/include/utils	Includes file in src/include/storage
backend_status.h	procnumber.h
dsa.h	dsm.h
freepage.h	lwlock.h
inval.h	relfilelocator.h
logtape.h	sharedfileset.h
pgstat_internal.h	lwlock.h
rel.h	block.h
rel.h	relfilelocator.h
rel.h	smgr.h
sampling.h	block.h
sharedtuplestore.h	fd.h
sharedtuplestore.h	sharedfileset.h
snapshot.h	buf.h
tuplesort.h	dsm.h
typcache.h	dsm.h