shmem_permission   46 include/linux/shmem_fs.h int shmem_permission(struct inode *, int);
shmem_permission 2412 mm/shmem.c     	.permission	= shmem_permission,
shmem_permission 2435 mm/shmem.c     	.permission	= shmem_permission,
shmem_permission 2446 mm/shmem.c     	.permission	= shmem_permission,