Thread: pgsql: Mostly-cosmetic improvements in memory chunk header alignmentco
Mostly-cosmetic improvements in memory chunk header alignment coding. Add commentary about what we're doing and why. Apply the method used for padding in GenerationChunk to AllocChunkData, replacing the rather ad-hoc solution used in commit 7e3aa03b4. Reorder fields in GenerationChunk so that the padding calculation will work even if sizeof(size_t) is different from sizeof(void *) --- likely that will never happen, but we don't need the assumption if we do it like this. Improve static assertions about alignment. In passing, fix a couple of oversights in the "large chunk" path in GenerationAlloc(). Discussion: https://postgr.es/m/E1eHa4J-0006hI-Q8@gemulon.postgresql.org Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/f65d21b258085bdc8ef2cc282ab1ff12da9c595c Modified Files -------------- src/backend/utils/mmgr/aset.c | 25 ++++++++++++---- src/backend/utils/mmgr/generation.c | 58 +++++++++++++++++-------------------- src/backend/utils/mmgr/slab.c | 21 ++++++++++---- 3 files changed, 62 insertions(+), 42 deletions(-)