shmem_get_unmapped_area 748 drivers/char/mem.c return shmem_get_unmapped_area(NULL, addr, len, pgoff, flags); shmem_get_unmapped_area 62 include/linux/shmem_fs.h extern unsigned long shmem_get_unmapped_area(struct file *, unsigned long addr, shmem_get_unmapped_area 2216 mm/mmap.c get_area = shmem_get_unmapped_area; shmem_get_unmapped_area 3793 mm/shmem.c .get_unmapped_area = shmem_get_unmapped_area,