>>> On 11.04.17 at 13:24, <daniel.ki...@oracle.com> wrote: > On Tue, Apr 11, 2017 at 01:46:37AM -0600, Jan Beulich wrote: >> >>> On 10.04.17 at 21:44, <eric.devol...@oracle.com> wrote: >> wouldn't it be better to handle this with a static state variable, >> which gets checked/set atomically, and which if already set simply >> leads to a continuation being arranged for? > > Do you think about something like that: > > if ( test_bit(KEXEC_FLAG_IN_PROGRESS, &kexec_flags) && > hypercall_preempt_check() ) > return hypercall_create_continuation(__HYPERVISOR_kexec_op, "h", uarg);
Well, minus the hypercall_preempt_check() call of course. And I'd expect this to be a test_and_set_bit(). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
