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Tomas Vondra 81f287dc92 Silence valgrind about pg_numa_touch_mem_if_required ... When querying NUMA status of pages in shared memory, we need to touch the memory first to get valid results. This may trigger valgrind reports, because some of the memory (e.g. unpinned buffers) may be marked as noaccess. Solved by adding a valgrind suppresion. An alternative would be to adjust the access/noaccess status before touching the memory, but that seems far too invasive. It would require all those places to have detailed knowledge of what the shared memory stores. The pg_numa_touch_mem_if_required() macro is replaced with a function. Macros are invisible to suppressions, so it'd have to suppress reports for the caller - e.g. pg_get_shmem_allocations_numa(). So we'd suppress reports for the whole function, and that seems to heavy-handed. It might easily hide other valid issues. Reviewed-by: Christoph Berg <myon@debian.org> Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Discussion: https://postgr.es/m/aEtDozLmtZddARdB@msg.df7cb.de Backpatch-through: 18		2 months ago
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expected	Add pg_buffercache_evict_{relation,all} functions	5 months ago
sql	Add pg_buffercache_evict_{relation,all} functions	5 months ago
.gitignore	…
Makefile	…
meson.build	…
pg_buffercache--1.0--1.1.sql	…
pg_buffercache--1.1--1.2.sql	…
pg_buffercache--1.2--1.3.sql	…
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pg_buffercache--1.3--1.4.sql	…
pg_buffercache--1.4--1.5.sql	…
pg_buffercache--1.5--1.6.sql	pg_buffercache: Change page_num type to bigint	5 months ago
pg_buffercache.control	…
pg_buffercache_pages.c	Silence valgrind about pg_numa_touch_mem_if_required	2 months ago