linux/fs/read_write.h
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   1/*
   2 * This file is only for sharing some helpers from read_write.c with compat.c.
   3 * Don't use anywhere else.
   4 */
   5
   6
   7typedef ssize_t (*io_fn_t)(struct file *, char __user *, size_t, loff_t *);
   8typedef ssize_t (*iov_fn_t)(struct kiocb *, const struct iovec *,
   9                unsigned long, loff_t);
  10
  11ssize_t do_sync_readv_writev(struct file *filp, const struct iovec *iov,
  12                unsigned long nr_segs, size_t len, loff_t *ppos, iov_fn_t fn);
  13ssize_t do_loop_readv_writev(struct file *filp, struct iovec *iov,
  14                unsigned long nr_segs, loff_t *ppos, io_fn_t fn);
  15
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