diff options
| -rw-r--r-- | include/linux/uio.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h index 2d0131ad4604..11cff46381a2 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -98,6 +98,17 @@ static inline bool iov_iter_bvec_no_ref(const struct iov_iter *i) return (i->type & ITER_BVEC_FLAG_NO_REF) != 0; } +/** + * iov_iter_get_pages_use_gup - true if iov_iter_get_pages(i) use GUP + * @i: iter + * Returns: true if a call to iov_iter_get_pages*() with the iter provided in + * argument would result in the use of get_user_pages*() + */ +static inline bool iov_iter_get_pages_use_gup(const struct iov_iter *i) +{ + return iov_iter_type(i) & (ITER_IOVEC | ITER_PIPE); +} + /* * Total number of bytes covered by an iovec. * |