diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2014-04-10 20:54:51 -0400 |
---|---|---|
committer | Al Viro <viro@zeniv.linux.org.uk> | 2014-05-06 17:32:42 -0400 |
commit | e7c24607b5d68a4cdc56e09d70a3c8bae5f0519f (patch) | |
tree | 65b8b65636ba6d2470d3a004d027ff966811d270 /mm/iov_iter.c | |
parent | f6c0a1920e0180175bd5e8e4aff8ea5556f1895d (diff) | |
download | linux-e7c24607b5d68a4cdc56e09d70a3c8bae5f0519f.tar.bz2 |
kill iov_iter_copy_from_user()
all callers can use copy_page_from_iter() and it actually simplifies
them.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/iov_iter.c')
-rw-r--r-- | mm/iov_iter.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/mm/iov_iter.c b/mm/iov_iter.c index 10e46cd721de..22ec1ef068a8 100644 --- a/mm/iov_iter.c +++ b/mm/iov_iter.c @@ -129,33 +129,6 @@ size_t iov_iter_copy_from_user_atomic(struct page *page, } EXPORT_SYMBOL(iov_iter_copy_from_user_atomic); -/* - * This has the same sideeffects and return value as - * iov_iter_copy_from_user_atomic(). - * The difference is that it attempts to resolve faults. - * Page must not be locked. - */ -size_t iov_iter_copy_from_user(struct page *page, - struct iov_iter *i, unsigned long offset, size_t bytes) -{ - char *kaddr; - size_t copied; - - kaddr = kmap(page); - if (likely(i->nr_segs == 1)) { - int left; - char __user *buf = i->iov->iov_base + i->iov_offset; - left = __copy_from_user(kaddr + offset, buf, bytes); - copied = bytes - left; - } else { - copied = __iovec_copy_from_user_inatomic(kaddr + offset, - i->iov, i->iov_offset, bytes); - } - kunmap(page); - return copied; -} -EXPORT_SYMBOL(iov_iter_copy_from_user); - void iov_iter_advance(struct iov_iter *i, size_t bytes) { BUG_ON(i->count < bytes); |