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authorAl Viro <viro@zeniv.linux.org.uk>2014-03-19 01:16:16 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-05-06 17:32:52 -0400
commitf67da30c1d5fc9e341bc8121708874bfd7b31e45 (patch)
tree504966ed27e82dbcbe31786c9a0851a4ae79ef3e /include/linux/uio.h
parent5b46f25ddc6edf4adff1a137d453da542c27a640 (diff)
downloadlinux-stericsson-f67da30c1d5fc9e341bc8121708874bfd7b31e45.tar.gz
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/linux/uio.h')
-rw-r--r--include/linux/uio.h1
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)
{