[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] [PATCH 1/3] x86/pv: Avoid locked bit manipulation in register_guest_callback()



On Thu, Mar 15, 2018 at 11:58:40AM +0000, Andrew Cooper wrote:
> Changes to arch.vgc_flags are made to current in syncrhonous context only, and
> don't need to be locked.  (The only other changes are via
> arch_set_info_guest(), which operates on descheduled vcpus only).
> 
> Replace the {set,clear}_bit() calls with compiler-visible bitwise operations.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Thanks, Roger.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-devel

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.