24 typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
25 typedef ssize_t (*iter_fn_t)(struct kiocb *, struct iov_iter *);
332 ssize_t vfs_iter_read(struct file *file, struct iov_iter *iter, loff_t *ppos)  in vfs_iter_read()
335 	ssize_t ret;  in vfs_iter_read()
352 ssize_t vfs_iter_write(struct file *file, struct iov_iter *iter, loff_t *ppos)  in vfs_iter_write()
355 	ssize_t ret;  in vfs_iter_write()
384 	if (unlikely((ssize_t) count < 0))  in rw_verify_area()
411 static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos)  in new_sync_read()
416 	ssize_t ret;  in new_sync_read()
428 ssize_t __vfs_read(struct file *file, char __user *buf, size_t count,  in __vfs_read()
440 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)  in vfs_read()
442 	ssize_t ret;  in vfs_read()
467 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)  in new_sync_write()
472 	ssize_t ret;  in new_sync_write()
485 ssize_t __vfs_write(struct file *file, const char __user *p, size_t count,  in __vfs_write()
497 ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)  in __kernel_write()
501 	ssize_t ret;  in __kernel_write()
523 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)  in vfs_write()
525 	ssize_t ret;  in vfs_write()
565 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE3()
581 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE3()
598 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE4()
618 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE4()
655 static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,  in do_iter_readv_writev()
659 	ssize_t ret;  in do_iter_readv_writev()
671 static ssize_t do_loop_readv_writev(struct file *filp, struct iov_iter *iter,  in do_loop_readv_writev()
674 	ssize_t ret = 0;  in do_loop_readv_writev()
678 		ssize_t nr;  in do_loop_readv_writev()
699 ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,  in rw_copy_check_uvector()
705 	ssize_t ret;  in rw_copy_check_uvector()
750 		ssize_t len = (ssize_t)iov[seg].iov_len;  in rw_copy_check_uvector()
774 static ssize_t do_readv_writev(int type, struct file *file,  in do_readv_writev()
782 	ssize_t ret;  in do_readv_writev()
826 ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,  in vfs_readv()
839 ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,  in vfs_writev()
856 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE3()
876 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE3()
903 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE5()
927 	ssize_t ret = -EBADF;  in SYSCALL_DEFINE5()
948 static ssize_t compat_do_readv_writev(int type, struct file *file,  in compat_do_readv_writev()
956 	ssize_t ret;  in compat_do_readv_writev()
1004 	ssize_t ret = -EBADF;  in compat_readv()
1027 	ssize_t ret;  in COMPAT_SYSCALL_DEFINE3()
1045 	ssize_t ret;  in __compat_sys_preadv64()
1081 	ssize_t ret = -EBADF;  in compat_writev()
1104 	ssize_t ret;  in COMPAT_SYSCALL_DEFINE3()
1122 	ssize_t ret;  in __compat_sys_pwritev64()
1155 static ssize_t do_sendfile(int out_fd, int in_fd, loff_t *ppos,  in do_sendfile()
1162 	ssize_t retval;  in do_sendfile()
1259 	ssize_t ret;  in SYSCALL_DEFINE4()
1277 	ssize_t ret;  in SYSCALL_DEFINE4()
1297 	ssize_t ret;  in COMPAT_SYSCALL_DEFINE4()
1316 	ssize_t ret;  in COMPAT_SYSCALL_DEFINE4()