From: "Luis R. Rodriguez" <mcg...@suse.com> This is my second series which addresses hypercall preemption on Xen. On the first iteration of this series [0] I tried as much as possible to avoid cond_resched() type of behaviour but after good feedback I've determined using something like cond_resched() but on IRQ context is required for preempting Xen hypercalls. This introduces and uses the new cond_resched_irq().
[0] https://lkml.org/lkml/2014/11/26/630 Luis R. Rodriguez (2): sched: add cond_resched_irq() x86/xen: allow privcmd hypercalls to be preempted arch/x86/kernel/entry_32.S | 21 +++++++++++++++++++++ arch/x86/kernel/entry_64.S | 17 +++++++++++++++++ drivers/xen/Makefile | 2 +- drivers/xen/preempt.c | 17 +++++++++++++++++ drivers/xen/privcmd.c | 2 ++ include/linux/sched.h | 7 +++++++ include/xen/xen-ops.h | 26 ++++++++++++++++++++++++++ kernel/sched/core.c | 10 ++++++++++ 8 files changed, 101 insertions(+), 1 deletion(-) create mode 100644 drivers/xen/preempt.c -- 2.1.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
