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| author | Al Viro <viro@zeniv.linux.org.uk> | 2014-03-19 01:16:16 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:32:52 -0400 |
| commit | f67da30c1d5fc9e341bc8121708874bfd7b31e45 (patch) | |
| tree | 504966ed27e82dbcbe31786c9a0851a4ae79ef3e /include | |
| parent | 5b46f25ddc6edf4adff1a137d453da542c27a640 (diff) | |
new helper: iov_iter_npages()
counts the pages covered by iov_iter, up to given limit.
do_block_direct_io() and fuse_iter_npages() switched to
it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/uio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/uio.h b/include/linux/uio.h index 341986116d83..2f8825b06680 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -73,6 +73,7 @@ void iov_iter_init(struct iov_iter *i, int direction, const struct iovec *iov, unsigned long nr_segs, size_t count); ssize_t iov_iter_get_pages(struct iov_iter *i, struct page **pages, size_t maxsize, size_t *start); +int iov_iter_npages(const struct iov_iter *i, int maxpages); static inline size_t iov_iter_count(struct iov_iter *i) { |