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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2015-01-31 20:08:47 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2015-02-17 22:21:11 -0500 |
| commit | 4b8164b91d9fdff4dbac0a742d076bdff7fda21b (patch) | |
| tree | 694a818c62c0716194e63179670af3035413ef74 /include/linux/uio.h | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | wireguard-linux-4b8164b91d9fdff4dbac0a742d076bdff7fda21b.tar.xz wireguard-linux-4b8164b91d9fdff4dbac0a742d076bdff7fda21b.zip | |
new helper: dup_iter()
Copy iter and kmemdup the underlying array for the copy. Returns
a pointer to result of kmemdup() to be kfree()'d later.
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 07a022641996..71880299ed48 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -98,6 +98,8 @@ ssize_t iov_iter_get_pages_alloc(struct iov_iter *i, struct page ***pages, size_t maxsize, size_t *start); int iov_iter_npages(const struct iov_iter *i, int maxpages); +const void *dup_iter(struct iov_iter *new, struct iov_iter *old, gfp_t flags); + static inline size_t iov_iter_count(struct iov_iter *i) { return i->count; |