aio: Add README.md explaining higher level design
Reviewed-by: Noah Misch <noah(at)leadboat(dot)com>
Reviewed-by: Heikki Linnakangas <hlinnaka(at)iki(dot)fi>
Discussion: https://postgr.es/m/uvrtrknj4kdytuboidbhwclo4gxhswwcpgadptsjvjqcluzmah%40brqs62irg4dt
Discussion: https://postgr.es/m/20210223100344.llw5an2aklengrmn@alap3.anarazel.de
Discussion: https://postgr.es/m/stj36ea6yyhoxtqkhpieia2z4krnam7qyetc57rfezgk4zgapf@gcnactj4z56m
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/fdd146a8ef2bc0c24e8d27e3773feeb8ef0a9c25
Modified Files
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src/backend/storage/aio/README.md | 424 ++++++++++++++++++++++++++++++++++++++
src/backend/storage/aio/aio.c | 2 +
2 files changed, 426 insertions(+)