| /* $PostgreSQL: pgsql/src/include/port/linux.h,v 1.42.2.1 2007/07/02 20:12:00 tgl Exp $ */ |
| |
| /* |
| * As of July 2007, all known versions of the Linux kernel will sometimes |
| * return EIDRM for a shmctl() operation when EINVAL is correct (it happens |
| * when the low-order 15 bits of the supplied shm ID match the slot number |
| * assigned to a newer shmem segment). We deal with this by assuming that |
| * EIDRM means EINVAL in PGSharedMemoryIsInUse(). This is reasonably safe |
| * since in fact Linux has no excuse for ever returning EIDRM; it doesn't |
| * track removed segments in a way that would allow distinguishing them from |
| * private ones. But someday that code might get upgraded, and we'd have |
| * to have a kernel version test here. |
| */ |
| #define HAVE_LINUX_EIDRM_BUG |
