91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
#include <sys/types.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <numa.h>
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#include <numaif.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <limits.h>
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#include "./C1384.h"
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#define PAGES 5
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static unsigned long pagesize;
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struct mbind_info base = {1, 3, MPOL_BIND};
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struct mbind_info new = {0, 3, MPOL_DEFAULT};
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static int expect_policies[PAGES] = {M_D, M_D, M_D, M_B, M_D};
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int main(int argc, char **argv)
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{
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void *addr;
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int i, node, err, policy, ret = 0;
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unsigned long base_start, base_size, new_start, new_size;
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struct bitmask *nmask = numa_allocate_nodemask();
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pagesize = getpagesize();
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node = 1;
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numa_bitmask_setbit(nmask, node);
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addr = mmap(NULL, pagesize * PAGES, PROT_WRITE,
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MAP_ANON | MAP_PRIVATE, 0, 0);
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if (addr == MAP_FAILED) {
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perror("mmap faile: ");
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ret = -1;
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goto out;
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}
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/* make page populate */
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memset(addr, 0, pagesize * PAGES);
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/* base mbind */
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base_start = (unsigned long)addr + pagesize * base.offset;
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base_size = pagesize * base.size;
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err = mbind((void *)base_start, base_size, base.policy, nmask->maskp,
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nmask->size, MPOL_MF_MOVE_ALL);
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if (err != 0) {
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perror("base mbind fail: ");
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ret = -1;
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goto out;
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}
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printf("base mbind: 0x%lx - 0x%lx policy:%d\n",
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base_start, base_start + base_size, base.policy);
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/* new mbind */
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new_start = (unsigned long)addr + pagesize * new.offset;
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new_size = pagesize * new.size;
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err = mbind((void *)new_start, new_size, new.policy,
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NULL, 0, 0);
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if (err != 0) {
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perror("new mbind fail: ");
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ret = -1;
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goto out;
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}
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printf("new mbind: 0x%lx - 0x%lx policy:%d\n",
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new_start, new_start + new_size, new.policy);
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for (i = 0; i < PAGES; i++) {
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err = get_mempolicy(&policy, nmask->maskp, nmask->size,
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addr + pagesize * i, MPOL_F_ADDR);
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if (err != 0) {
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perror("get_mempolicy fail: ");
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ret = -1;
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goto out;
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}
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if (policy != expect_policies[i]) {
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printf("[NG] policy[%d] is %d (expected %d)\n",
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i, policy, expect_policies[i]);
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ret = -1;
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goto out;
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}
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}
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printf("[OK] policies are expected\n");
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out:
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return ret;
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}
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