On Sun, Jan 7, 2018 at 4:16 AM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote: > What I propose is > * switch memdup_user() to GFP_USER > * add vmemdup_user(), using kvmalloc() instead of kmalloc() (also with > GFP_USER) Perhaps kvmemdup_user() for sake of consistency? > * switch open-coded instances of the latter to calling it > * switch some of the memdup_user() callers to vmemdup_user() - the ones that > don't need physically contiguous copy and might be larger than a couple of pages. > * add apriori bounds on size in the call sites that do not have those yet - > that'll require comments from maintainers of the code in question in some cases. > > Objections? Not at all! -- With Best Regards, Andy Shevchenko
