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kill iov_shorten()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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0e5b935d43
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2 changed files with 0 additions and 23 deletions
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@ -634,27 +634,6 @@ SYSCALL_DEFINE4(pwrite64, unsigned int, fd, const char __user *, buf,
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return ret;
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}
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/*
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* Reduce an iovec's length in-place. Return the resulting number of segments
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*/
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unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to)
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{
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unsigned long seg = 0;
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size_t len = 0;
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while (seg < nr_segs) {
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seg++;
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if (len + iov->iov_len >= to) {
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iov->iov_len = to - len;
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break;
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}
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len += iov->iov_len;
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iov++;
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}
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return seg;
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}
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EXPORT_SYMBOL(iov_shorten);
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static ssize_t do_iter_readv_writev(struct file *filp, struct iov_iter *iter,
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loff_t *ppos, int type, rwf_t flags)
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{
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@ -80,8 +80,6 @@ static inline struct iovec iov_iter_iovec(const struct iov_iter *iter)
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((iov = iov_iter_iovec(&(iter))), 1); \
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iov_iter_advance(&(iter), (iov).iov_len))
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unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);
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size_t iov_iter_copy_from_user_atomic(struct page *page,
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struct iov_iter *i, unsigned long offset, size_t bytes);
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void iov_iter_advance(struct iov_iter *i, size_t bytes);
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