pgsql/src backend/access/heap/heapam.c backend ...

CVSROOT: /home/projects/pgsql/cvsroot
Module name: pgsql
Changes by: tgl(at)hub(dot)org 01/06/29 17:08:25

Modified files:
src/backend/access/heap: heapam.c hio.c
src/backend/access/transam: xlogutils.c
src/backend/catalog: heap.c
src/backend/commands: sequence.c
src/backend/storage/buffer: bufmgr.c
src/backend/storage/freespace: freespace.c
src/backend/storage/smgr: smgr.c
src/backend/utils/cache: relcache.c
src/include/access: hio.h
src/include/storage: bufmgr.h
src/include/utils: relcache.h

Log message:
Further work on connecting the free space map (which is still just a
stub) into the rest of the system. Adopt a cleaner approach to preventing
deadlock in concurrent heap_updates: allow RelationGetBufferForTuple to
select any page of the rel, and put the onus on it to lock both buffers
in a consistent order. Remove no-longer-needed isExtend hack from
API of ReleaseAndReadBuffer.