mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-20 16:51:37 +00:00
ffa2688969
This commit add a test for checkpoint/restore MAP_HUGETLB memory mappings. A new zdtm helper get_mapping_dev() is added to get the device number of the memory mapping. Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
#include <sys/mman.h>
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#include "zdtmtst.h"
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#define MEM_SIZE (4UL * (1UL << 20)) /* 4MB */
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#define MEM_OFFSET (MEM_SIZE - PAGE_SIZE)
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const char *test_doc = "Test MAP_HUGETLB mapping";
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const char *test_author = "Bui Quang Minh <minhquangbui99@gmail.com>";
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int main(int argc, char **argv)
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{
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void *m1, *m2;
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dev_t dev1, dev2;
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uint32_t crc;
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test_init(argc, argv);
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m1 = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, MAP_HUGETLB | MAP_SHARED | MAP_ANONYMOUS, 0, 0);
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if (m1 == MAP_FAILED) {
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pr_perror("Failed to mmap %lu Mb anonymous shared memory", MEM_SIZE >> 20);
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return 1;
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}
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dev1 = get_mapping_dev(m1);
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if (dev1 == (dev_t)-1) {
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fail("Can't get mapping dev");
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return 1;
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}
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m2 = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
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if (m2 == MAP_FAILED) {
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pr_perror("Failed to mmap %lu Mb anonymous private memory", MEM_SIZE >> 20);
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return 1;
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}
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dev2 = get_mapping_dev(m2);
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if (dev2 == (dev_t)-1) {
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fail("Can't get mapping dev");
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return 1;
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}
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crc = ~0;
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datagen(m1, PAGE_SIZE, &crc);
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crc = ~0;
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datagen(m1 + MEM_OFFSET, PAGE_SIZE, &crc);
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crc = ~0;
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datagen(m2, PAGE_SIZE, &crc);
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crc = ~0;
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datagen(m2 + MEM_OFFSET, PAGE_SIZE, &crc);
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crc = ~0;
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test_daemon();
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test_waitsig();
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crc = ~0;
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if (datachk(m1, PAGE_SIZE, &crc)) {
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fail("Data mismatch");
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return 1;
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}
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crc = ~0;
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if (datachk(m1 + MEM_OFFSET, PAGE_SIZE, &crc)) {
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fail("Data mismatch");
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return 1;
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}
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crc = ~0;
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if (datachk(m2, PAGE_SIZE, &crc)) {
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fail("Data mismatch");
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return 1;
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}
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crc = ~0;
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if (datachk(m2 + MEM_OFFSET, PAGE_SIZE, &crc)) {
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fail("Data mismatch");
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return 1;
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}
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if (dev1 != get_mapping_dev(m1)) {
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fail("Mapping dev mismatch");
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return 1;
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}
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if (dev2 != get_mapping_dev(m2)) {
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fail("Mapping dev mismatch");
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return 1;
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}
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pass();
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return 0;
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}
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