diff options
Diffstat (limited to 'src/include/access/xlogdefs.h')
| -rw-r--r-- | src/include/access/xlogdefs.h | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/src/include/access/xlogdefs.h b/src/include/access/xlogdefs.h index 0940b64ca6b..60348d18509 100644 --- a/src/include/access/xlogdefs.h +++ b/src/include/access/xlogdefs.h @@ -65,21 +65,6 @@ typedef uint32 TimeLineID; typedef uint16 RepOriginId; /* - * Because O_DIRECT bypasses the kernel buffers, and because we never - * read those buffers except during crash recovery or if wal_level != minimal, - * it is a win to use it in all cases where we sync on each write(). We could - * allow O_DIRECT with fsync(), but it is unclear if fsync() could process - * writes not buffered in the kernel. Also, O_DIRECT is never enough to force - * data to the drives, it merely tries to bypass the kernel cache, so we still - * need O_SYNC/O_DSYNC. - */ -#ifdef O_DIRECT -#define PG_O_DIRECT O_DIRECT -#else -#define PG_O_DIRECT 0 -#endif - -/* * This chunk of hackery attempts to determine which file sync methods * are available on the current platform, and to choose an appropriate * default method. We assume that fsync() is always available, and that |