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Remove superfluous 'pgprocno' field from PGPROC

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It was always just the index of the PGPROC entry from the beginning of
the proc array. Introduce a macro to compute it from the pointer
instead.

Reviewed-by: Andres Freund
Discussion: https://www.postgresql.org/message-id/8171f1aa-496f-46a6-afc3-c46fe7a9b407@iki.fi
This commit is contained in:
Heikki Linnakangas
2024-02-22 01:21:34 +02:00
parent 4989ce7264
commit 28f3915b73
14 changed files with 46 additions and 43 deletions
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5
src/backend/access/transam/clog.c
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@@ -425,6 +425,7 @@ TransactionGroupUpdateXidStatus(TransactionId xid, XidStatus status,
{
volatile PROC_HDR *procglobal = ProcGlobal;
PGPROC *proc = MyProc;
int pgprocno = MyProcNumber;
uint32 nextidx;
uint32 wakeidx;
@@ -458,7 +459,7 @@ TransactionGroupUpdateXidStatus(TransactionId xid, XidStatus status,
* less efficiently.
*/
if (nextidx != INVALID_PGPROCNO &&
ProcGlobal->allProcs[nextidx].clogGroupMemberPage != proc->clogGroupMemberPage)
GetPGProcByNumber(nextidx)->clogGroupMemberPage != proc->clogGroupMemberPage)
{
/*
* Ensure that this proc is not a member of any clog group that
@@ -473,7 +474,7 @@ TransactionGroupUpdateXidStatus(TransactionId xid, XidStatus status,
if (pg_atomic_compare_exchange_u32(&procglobal->clogGroupFirst,
&nextidx,
(uint32) proc->pgprocno))
(uint32) pgprocno))
break;
}