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aio: Fix assertion, clarify README

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The assertion wouldn't have triggered for a long while yet, but this won't
accidentally fail to detect the issue if/when it occurs.

Author: Matthias van de Meent <boekewurm+postgres@gmail.com>
Discussion: https://postgr.es/m/CAEze2Wj-43JV4YufW23gm=Uwr7Lkj+p0yKctKHxNm1rwFC+_DQ@mail.gmail.com
Backpatch-through: 18
This commit is contained in:
Andres Freund
2025-07-22 08:30:52 -04:00
parent ce6513e96a
commit d3f97fd1dd
2 changed files with 4 additions and 3 deletions
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2
src/include/storage/aio.h
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@@ -201,7 +201,7 @@ typedef enum PgAioHandleCallbackID
} PgAioHandleCallbackID;
#define PGAIO_HCB_MAX PGAIO_HCB_LOCAL_BUFFER_READV
StaticAssertDecl(PGAIO_HCB_MAX <= (1 << PGAIO_RESULT_ID_BITS),
StaticAssertDecl(PGAIO_HCB_MAX < (1 << PGAIO_RESULT_ID_BITS),
"PGAIO_HCB_MAX is too big for PGAIO_RESULT_ID_BITS");