Searched refs:mem_fd (Results 1 - 4 of 4) sorted by relevance

/linux-master/tools/testing/selftests/mm/
H A Dmkdirty.c30 static int mem_fd; variable
110 lseek(mem_fd, (uintptr_t) mem, SEEK_SET);
111 ret = write(mem_fd, &data, 1);
140 lseek(mem_fd, (uintptr_t) mem, SEEK_SET);
141 ret = write(mem_fd, &data, 1);
345 mem_fd = open("/proc/self/mem", O_RDWR);
346 if (mem_fd < 0)
H A Duffd-common.c26 int mem_fd; local
30 mem_fd = memfd_create("uffd-test", memfd_flags);
31 if (mem_fd < 0)
33 if (ftruncate(mem_fd, mem_size))
35 if (fallocate(mem_fd,
40 return mem_fd;
81 int mem_fd = uffd_mem_fd_create(size * 2, true); local
86 mem_fd, offset);
94 MAP_SHARED, mem_fd, offset);
107 close(mem_fd);
131 int mem_fd = uffd_mem_fd_create(bytes * 2, false); local
[all...]
H A Dmremap_dontunmap.c133 int mem_fd = memfd_create("memfd", MFD_CLOEXEC); local
134 BUG_ON(mem_fd < 0, "memfd_create");
136 BUG_ON(ftruncate(mem_fd, num_pages * page_size) < 0,
141 MAP_FILE | MAP_SHARED, mem_fd, 0);
144 BUG_ON(close(mem_fd) < 0, "close");
H A Dksm_functional_tests.c40 static int mem_fd; variable
640 lseek(mem_fd, (uintptr_t) map + i, SEEK_SET);
641 if (write(mem_fd, &i, sizeof(i)) != sizeof(i)) {
677 mem_fd = open("/proc/self/mem", O_RDWR);
678 if (mem_fd < 0)

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