dev_zero_fd      1423 oshmem/mca/memheap/ptmalloc/malloc.c static int dev_zero_fd = -1; /* Cached file descriptor for /dev/zero. */
dev_zero_fd      1424 oshmem/mca/memheap/ptmalloc/malloc.c #define CALL_MMAP(s) ((dev_zero_fd < 0) ? \
dev_zero_fd      1425 oshmem/mca/memheap/ptmalloc/malloc.c            (dev_zero_fd = open("/dev/zero", O_RDWR), \
dev_zero_fd      1426 oshmem/mca/memheap/ptmalloc/malloc.c             mmap(0, (s), MMAP_PROT, MMAP_FLAGS, dev_zero_fd, 0)) : \
dev_zero_fd      1427 oshmem/mca/memheap/ptmalloc/malloc.c             mmap(0, (s), MMAP_PROT, MMAP_FLAGS, dev_zero_fd, 0))