[lkml]   [2020]   [Mar]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC][PATCH 5/7] x86: convert arch_futex_atomic_op_inuser() to user_access_begin/user_access_end()
On Mon, Mar 23, 2020 at 11:53 AM Al Viro <> wrote:
> From: Al Viro <>
> Lift stac/clac pairs from __futex_atomic_op{1,2} into arch_futex_atomic_op_inuser(),
> fold them with access_ok() in there.

So this is a deep internal macro and already has the double
underscore, but I'm inclined to say "add the unsafe here too" for
those __futex_atomic_opX() macros that are now called inside that
user_access_begin/end region.

And wouldn't it be lovely to get rid of the error return thing, and
pass in a label instead, the way "usafe_get/put_user()" works too?
That might be a separate patch from the "reorg" thing, though.


 \ /
  Last update: 2020-03-23 20:08    [W:0.066 / U:1.440 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site