Messages in this thread Patch in this message | | | From | Omar Sandoval <> | Subject | [RFC PATCH 1/5] new helper: iov_iter_rw() | Date | Mon, 16 Mar 2015 04:33:49 -0700 |
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Get either READ or WRITE out of iter->type.
Signed-off-by: Omar Sandoval <osandov@osandov.com> --- include/linux/uio.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/uio.h b/include/linux/uio.h index 7188029..87a47b3 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -10,6 +10,7 @@ #define __LINUX_UIO_H #include <linux/kernel.h> +#include <linux/fs.h> #include <uapi/linux/uio.h> struct page; @@ -111,6 +112,15 @@ static inline bool iter_is_iovec(struct iov_iter *i) } /* + * Get one of READ or WRITE out of iter->type without any other flags OR'd in + * with it. + */ +static inline int iov_iter_rw(const struct iov_iter *i) +{ + return i->type & RW_MASK; +} + +/* * Cap the iov_iter by given limit; note that the second argument is * *not* the new size - it's upper limit for such. Passing it a value * greater than the amount of data in iov_iter is fine - it'll just do -- 2.3.3
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