database/postgres
database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-05-02 11:44:50 +03:00
Code

Add parens to ConvertToXSegs macro

Browse Source 
The current definition is dangerous.  No bugs exist in our code at
present, but backpatch to 11 nonetheless where it was introduced.

Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
This commit is contained in:
Alvaro Herrera 2020-06-24 14:00:37 -04:00
parent d3d8755180
commit 013d324d51
No known key found for this signature in database
GPG Key ID: 1C20ACB9D5C564AE
1 changed files with 5 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/backend/access/transam/xlog.c
View File

@ -744,9 +744,12 @@ static ControlFileData *ControlFile = NULL;
*/
#define UsableBytesInPage (XLOG_BLCKSZ - SizeOfXLogShortPHD)
/* Convert min_wal_size_mb and max wal_size_mb to equivalent segment count */
/*
* Convert min_wal_size_mb and max wal_size_mb to equivalent segment count.
* Rounds down.
*/
#define ConvertToXSegs(x, segsize) \
(x / ((segsize) / (1024 * 1024)))
((x) / ((segsize) / (1024 * 1024)))
/* The number of bytes in a WAL segment usable for WAL data. */
static int UsableBytesInSegment;