[PATCH v3 04/15] livepatch/x86: add TIF_PATCH_PENDING thread flag

[Andy Lutomirski]

On Thu, Dec 8, 2016 at 10:08 AM, Josh Poimboeuf <jpoimboe at redhat.com> wrote:
> Add the TIF_PATCH_PENDING thread flag to enable the new livepatch
> per-task consistency model for x86_64.  The bit getting set indicates
> the thread has a pending patch which needs to be applied when the thread
> exits the kernel.
>
> The bit is placed in the _TIF_ALLWORK_MASK macro, which results in
> exit_to_usermode_loop() calling klp_update_patch_state() when it's set.
>
> Signed-off-by: Josh Poimboeuf <jpoimboe at redhat.com>

Acked-by: Andy Lutomirski <luto at kernel.org>