Re: [PATCH v9 1/9] iov_iter: add copy_struct_from_iter()
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: 2021-04-01 17:47:05
Also in:
linux-btrfs, linux-fsdevel
On Wed, Mar 31, 2021 at 11:51 PM Omar Sandoval [off-list ref] wrote:
+ * + * The recommended usage is something like the following: + * + * if (usize > PAGE_SIZE) + * return -E2BIG;
Maybe this should be more than a recommendation, and just be inside
copy_struct_from_iter(), because otherwise the "check_zeroed_user()"
call might be quite the timesink for somebody who does something
stupid.
But otherwise this new version (still) looks fine to me.
Linus