[Xen-devel] [PATCHv1] x86/xen: add reschedule point when mapping foreign GFNs

[David Vrabel <david.vrabel@xxxxxxxxxx>]

Mapping a large range of foreign GFNs can take a long time, add a
reschedule point after each batch of 16 GFNs.

Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
---
 arch/x86/xen/mmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 9c479fe..734fa84 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2882,6 +2882,7 @@ static int do_remap_gfn(struct vm_area_struct *vma,
                                mapped += done;
                        batch_left -= done;
                        index += done;
+                       cond_resched();
                } while (batch_left);
 
                nr -= batch;
-- 
2.1.4


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