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Remove obsolete comment.

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Commit 755a4c10d1 prevented StartReadBuffers() from crossing md.c
segment boundaries in one operation, but a comment about that
possibility remained.
This commit is contained in:
Thomas Munro 2025-02-14 13:16:05 +13:00
parent 432c30dc4e
commit 9e17ac997f
1 changed files with 1 additions and 4 deletions
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5
src/backend/storage/buffer/bufmgr.c
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@ -1330,10 +1330,7 @@ StartReadBuffersImpl(ReadBuffersOperation *operation,
* StartReadBuffers() were made for the same blocks before
* WaitReadBuffers(), only the first would issue the advice. That'd be
* a better simulation of true asynchronous I/O, which would only
* start the I/O once, but isn't done here for simplicity. Note also
* that the following call might actually issue two advice calls if we
* cross a segment boundary; in a true asynchronous version we might
* choose to process only one real I/O at a time in that case.
* start the I/O once, but isn't done here for simplicity.
*/
smgrprefetch(operation->smgr,
operation->forknum,