| /* Simplest soft offline testcase */ | |
| #include <stdlib.h> | |
| #include <sys/mman.h> | |
| #include <stdio.h> | |
| #include <unistd.h> | |
| #define err(x) perror(x), exit(1) | |
| #define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ | |
| int PS; | |
| int main(void) | |
| { | |
| PS = getpagesize(); | |
| char *map = mmap(NULL, PS, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); | |
| if (map == (char *)-1L) | |
| err("mmap"); | |
| *map = 1; | |
| if (madvise(map, PS, MADV_SOFT_OFFLINE) < 0) | |
| perror("madvise SOFT_OFFLINE"); | |
| *map = 2; | |
| return 0; | |
| } |