1:19 p.m.
Hi Fengguang,
this patch is not ready, and is left for 4.5; see Andy's comment at
http://permalink.gmane.org/gmane.linux.kernel/2072877. Only the other
two are.
I'm sorry for the inconvenience.
Thanks,
Paolo
On 02/11/2015 13:11, Fengguang Wu wrote:
Hi Paolo,
FYI, here is another bisect result.
https://github.com/0day-ci/linux
Paolo-Bonzini/context_tracking-remove-duplicate-enabled-check/20151028-094317
commit db23da8b95ece9b57d4cfd63f5ee10502f1af0c8
Author: Paolo Bonzini <pbonzini(a)redhat.com>
AuthorDate: Wed Oct 28 02:39:57 2015 +0100
Commit: 0day robot <fengguang.wu(a)intel.com>
CommitDate: Wed Oct 28 09:43:20 2015 +0800
x86: context_tracking: avoid irq_save/irq_restore on kernel entry and exit
x86 always calls user_enter and user_exit with interrupt disabled.
Therefore, it is not necessary to check for exceptions, nor to
save/restore the IRQ state, when context tracking functions are
called by guest_enter and guest_exit.
Use the previously introduced __context_tracking_entry and
__context_tracking_exit.
Cc: Andy Lutomirski <luto(a)kernel.org>
Cc: Frederic Weisbecker <fweisbec(a)gmail.com>
Cc: Rik van Riel <riel(a)redhat.com>
Cc: Paul McKenney <paulmck(a)linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini(a)redhat.com>