new helper: iov_iter_rw()
Get either READ or WRITE out of iter->type. Signed-off-by: Omar Sandoval <osandov@osandov.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>hifive-unleashed-5.1
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8436318205
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bd8e0ff956
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@ -111,6 +111,14 @@ static inline bool iter_is_iovec(struct iov_iter *i)
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return !(i->type & (ITER_BVEC | ITER_KVEC));
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return !(i->type & (ITER_BVEC | ITER_KVEC));
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}
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}
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/*
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* Get one of READ or WRITE out of iter->type without any other flags OR'd in
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* with it.
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*
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* The ?: is just for type safety.
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*/
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#define iov_iter_rw(i) ((0 ? (struct iov_iter *)0 : (i))->type & RW_MASK)
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/*
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/*
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* Cap the iov_iter by given limit; note that the second argument is
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* Cap the iov_iter by given limit; note that the second argument is
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* *not* the new size - it's upper limit for such. Passing it a value
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* *not* the new size - it's upper limit for such. Passing it a value
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