Обсуждение: XLogCacheByte is unused
I found XLogCtlData.XLogCacheByte is already unused in CVS HEAD.
Should we remove the variable, or reserve it for future use?
Index: src/backend/access/transam/xlog.c
===================================================================
--- src/backend/access/transam/xlog.c (revision 1268)
+++ src/backend/access/transam/xlog.c (working copy)
@@ -317,7 +317,6 @@
*/
char *pages; /* buffers for unwritten XLOG pages */
XLogRecPtr *xlblocks; /* 1st byte ptr-s + XLOG_BLCKSZ */
- Size XLogCacheByte; /* # bytes in xlog buffers */
int XLogCacheBlck; /* highest allocated xlog buffer index */
TimeLineID ThisTimeLineID;
@@ -4115,8 +4114,6 @@
* Do basic initialization of XLogCtl shared data. (StartupXLOG will fill
* in additional info.)
*/
- XLogCtl->XLogCacheByte = (Size) XLOG_BLCKSZ *XLOGbuffers;
-
XLogCtl->XLogCacheBlck = XLOGbuffers - 1;
XLogCtl->Insert.currpage = (XLogPageHeader) (XLogCtl->pages);
SpinLockInit(&XLogCtl->info_lck);
Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center
This has been saved for the 8.4 release:
http://momjian.postgresql.org/cgi-bin/pgpatches_hold
---------------------------------------------------------------------------
ITAGAKI Takahiro wrote:
> I found XLogCtlData.XLogCacheByte is already unused in CVS HEAD.
> Should we remove the variable, or reserve it for future use?
>
> Index: src/backend/access/transam/xlog.c
> ===================================================================
> --- src/backend/access/transam/xlog.c (revision 1268)
> +++ src/backend/access/transam/xlog.c (working copy)
> @@ -317,7 +317,6 @@
> */
> char *pages; /* buffers for unwritten XLOG pages */
> XLogRecPtr *xlblocks; /* 1st byte ptr-s + XLOG_BLCKSZ */
> - Size XLogCacheByte; /* # bytes in xlog buffers */
> int XLogCacheBlck; /* highest allocated xlog buffer index */
> TimeLineID ThisTimeLineID;
>
> @@ -4115,8 +4114,6 @@
> * Do basic initialization of XLogCtl shared data. (StartupXLOG will fill
> * in additional info.)
> */
> - XLogCtl->XLogCacheByte = (Size) XLOG_BLCKSZ *XLOGbuffers;
> -
> XLogCtl->XLogCacheBlck = XLOGbuffers - 1;
> XLogCtl->Insert.currpage = (XLogPageHeader) (XLogCtl->pages);
> SpinLockInit(&XLogCtl->info_lck);
>
> Regards,
> ---
> ITAGAKI Takahiro
> NTT Open Source Software Center
>
>
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--
Bruce Momjian <bruce@momjian.us> http://momjian.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp> wrote:
> I found XLogCtlData.XLogCacheByte is already unused in CVS HEAD.
> Should we remove the variable, or reserve it for future use?
Applied, thanks. We can always put it back if we need it again.
regards, tom lane