tree 694a818c62c0716194e63179670af3035413ef74
parent f5af19d10d151c5a2afae3306578f485c244db25
author Al Viro <viro@zeniv.linux.org.uk> 1422752927 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1424229671 -0500

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>