diff options
| author |   Al Viro <viro@zeniv.linux.org.uk> | 2014-03-05 13:50:45 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:32:47 -0400 |
| commit | 886a39115005ced8b15ab067c9c2a8d546b40a5e (patch) | |
| tree | cb72af0480369f31a449aa7a8451d407315c2bf3 /include/linux/uio.h | |
| parent | give ->direct_IO() a copy of iov_iter (diff) | |
| download | linux-dev-886a39115005ced8b15ab067c9c2a8d546b40a5e.tar.xz linux-dev-886a39115005ced8b15ab067c9c2a8d546b40a5e.zip | |
new primitive: iov_iter_alignment()
returns the value aligned as badly as the worst remaining segment
in iov_iter is. Use instead of open-coded equivalents.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/uio.h')
| -rw-r--r-- | include/linux/uio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h index abbe83ded630..4ee17413fe1b 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -67,6 +67,7 @@ int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes); size_t iov_iter_single_seg_count(const struct iov_iter *i); size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes, struct iov_iter *i); +unsigned long iov_iter_alignment(const struct iov_iter *i); static inline void iov_iter_init(struct iov_iter *i, const struct iovec *iov, unsigned long nr_segs, @@ -88,4 +89,5 @@ static inline size_t iov_iter_count(struct iov_iter *i) int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len); + #endif |