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e498a1bf65
InnoDB: Remove HAVE_purify, UNIV_INIT_MEM_TO_ZERO, UNIV_SET_MEM_TO_ZERO. The compile-time setting HAVE_purify can mask potential bugs. It is being set in PB2 Valgrind runs. We should simply get rid of it, and replace it with UNIV_MEM_INVALID() to declare uninitialized memory as such in Valgrind-instrumented binaries. os_mem_alloc_large(), ut_malloc_low(): Remove the parameter set_to_zero. ut_malloc(): Define as a macro that invokes ut_malloc_low(). buf_pool_init(): Never initialize the buffer pool frames. All pages must be initialized before flushing them to disk. mem_heap_alloc(): Never initialize the allocated memory block. os_mem_alloc_nocache(), ut_test_malloc(): Unused function, remove. rb:813 approved by Jimmy Yang