Remove useless (and broken) logging logic in memory context functions.

Nobody really uses this stuff, especially not since we created
valgrind-based infrastructure that does the same thing better.
It is thus unsurprising that the generation.c and slab.c versions
were actually broken.  Rather than fix 'em, let's just remove 'em.

Alexander Lakhin

Discussion: https://postgr.es/m/8936216c-3492-3f6e-634b-d638fddc5f91@gmail.com

src/backend/utils/mmgr/aset.c

@@ -50,9 +50,6 @@
 #include "utils/memdebug.h"
 #include "utils/memutils.h"
 
-/* Define this to detail debug alloc information */
-/* #define HAVE_ALLOCINFO */
-
 /*--------------------
  * Chunk freelist k holds chunks of size 1 << (k + ALLOC_MINBITS),
  * for k = 0 .. ALLOCSET_NUM_FREELISTS-1.
@@ -298,21 +295,6 @@ static const MemoryContextMethods AllocSetMethods = {
 #endif
 };
 
-/* ----------
- * Debug macros
- * ----------
- */
-#ifdef HAVE_ALLOCINFO
-#define AllocFreeInfo(_cxt, _chunk) \
-			fprintf(stderr, "AllocFree: %s: %p, %zu\n", \
-				(_cxt)->header.name, (_chunk), (_chunk)->size)
-#define AllocAllocInfo(_cxt, _chunk) \
-			fprintf(stderr, "AllocAlloc: %s: %p, %zu\n", \
-				(_cxt)->header.name, (_chunk), (_chunk)->size)
-#else
-#define AllocFreeInfo(_cxt, _chunk)
-#define AllocAllocInfo(_cxt, _chunk)
-#endif
 
 /* ----------
  * AllocSetFreeIndex -
@@ -796,8 +778,6 @@ AllocSetAlloc(MemoryContext context, Size size)
 			set->blocks = block;
 		}
 
-		AllocAllocInfo(set, chunk);
-
 		/* Ensure any padding bytes are marked NOACCESS. */
 		VALGRIND_MAKE_MEM_NOACCESS((char *) AllocChunkGetPointer(chunk) + size,
 								   chunk_size - size);
@@ -835,8 +815,6 @@ AllocSetAlloc(MemoryContext context, Size size)
 		randomize_mem((char *) AllocChunkGetPointer(chunk), size);
 #endif
 
-		AllocAllocInfo(set, chunk);
-
 		/* Ensure any padding bytes are marked NOACCESS. */
 		VALGRIND_MAKE_MEM_NOACCESS((char *) AllocChunkGetPointer(chunk) + size,
 								   chunk->size - size);
@@ -996,8 +974,6 @@ AllocSetAlloc(MemoryContext context, Size size)
 	randomize_mem((char *) AllocChunkGetPointer(chunk), size);
 #endif
 
-	AllocAllocInfo(set, chunk);
-
 	/* Ensure any padding bytes are marked NOACCESS. */
 	VALGRIND_MAKE_MEM_NOACCESS((char *) AllocChunkGetPointer(chunk) + size,
 							   chunk_size - size);
@@ -1021,8 +997,6 @@ AllocSetFree(MemoryContext context, void *pointer)
 	/* Allow access to private part of chunk header. */
 	VALGRIND_MAKE_MEM_DEFINED(chunk, ALLOCCHUNK_PRIVATE_LEN);
 
-	AllocFreeInfo(set, chunk);
-
 #ifdef MEMORY_CONTEXT_CHECKING
 	/* Test for someone scribbling on unused space in chunk */
 	if (chunk->requested_size < chunk->size)

src/backend/utils/mmgr/generation.c

@@ -178,22 +178,6 @@ static const MemoryContextMethods GenerationMethods = {
 #endif
 };
 
-/* ----------
- * Debug macros
- * ----------
- */
-#ifdef HAVE_ALLOCINFO
-#define GenerationFreeInfo(_cxt, _chunk) \
-			fprintf(stderr, "GenerationFree: %s: %p, %lu\n", \
-				(_cxt)->name, (_chunk), (_chunk)->size)
-#define GenerationAllocInfo(_cxt, _chunk) \
-			fprintf(stderr, "GenerationAlloc: %s: %p, %lu\n", \
-				(_cxt)->name, (_chunk), (_chunk)->size)
-#else
-#define GenerationFreeInfo(_cxt, _chunk)
-#define GenerationAllocInfo(_cxt, _chunk)
-#endif
-
 
 /*
  * Public routines
@@ -383,8 +367,6 @@ GenerationAlloc(MemoryContext context, Size size)
 		/* add the block to the list of allocated blocks */
 		dlist_push_head(&set->blocks, &block->node);
 
-		GenerationAllocInfo(set, chunk);
-
 		/* Ensure any padding bytes are marked NOACCESS. */
 		VALGRIND_MAKE_MEM_NOACCESS((char *) GenerationChunkGetPointer(chunk) + size,
 								   chunk_size - size);
@@ -460,8 +442,6 @@ GenerationAlloc(MemoryContext context, Size size)
 	randomize_mem((char *) GenerationChunkGetPointer(chunk), size);
 #endif
 
-	GenerationAllocInfo(set, chunk);
-
 	/* Ensure any padding bytes are marked NOACCESS. */
 	VALGRIND_MAKE_MEM_NOACCESS((char *) GenerationChunkGetPointer(chunk) + size,
 							   chunk_size - size);

src/backend/utils/mmgr/slab.c

@@ -157,22 +157,6 @@ static const MemoryContextMethods SlabMethods = {
 #endif
 };
 
-/* ----------
- * Debug macros
- * ----------
- */
-#ifdef HAVE_ALLOCINFO
-#define SlabFreeInfo(_cxt, _chunk) \
-			fprintf(stderr, "SlabFree: %s: %p, %zu\n", \
-				(_cxt)->header.name, (_chunk), (_chunk)->header.size)
-#define SlabAllocInfo(_cxt, _chunk) \
-			fprintf(stderr, "SlabAlloc: %s: %p, %zu\n", \
-				(_cxt)->header.name, (_chunk), (_chunk)->header.size)
-#else
-#define SlabFreeInfo(_cxt, _chunk)
-#define SlabAllocInfo(_cxt, _chunk)
-#endif
-
 
 /*
  * SlabContextCreate
@@ -499,8 +483,6 @@ SlabAlloc(MemoryContext context, Size size)
 	randomize_mem((char *) SlabChunkGetPointer(chunk), size);
 #endif
 
-	SlabAllocInfo(slab, chunk);
-
 	Assert(slab->nblocks * slab->blockSize == context->mem_allocated);
 
 	return SlabChunkGetPointer(chunk);
@@ -518,8 +500,6 @@ SlabFree(MemoryContext context, void *pointer)
 	SlabChunk  *chunk = SlabPointerGetChunk(pointer);
 	SlabBlock  *block = chunk->block;
 
-	SlabFreeInfo(slab, chunk);
-
 #ifdef MEMORY_CONTEXT_CHECKING
 	/* Test for someone scribbling on unused space in chunk */
 	if (slab->chunkSize < (slab->fullChunkSize - sizeof(SlabChunk)))