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x86/xen: add reschedule point when mapping foreign GFNs
author
David Vrabel
<david.vrabel@citrix.com>
Wed, 28 Oct 2015 13:39:05 +0000
(13:39 +0000)
committer
David Vrabel
<david.vrabel@citrix.com>
Wed, 28 Oct 2015 13:46:27 +0000
(13:46 +0000)
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@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
arch/x86/xen/mmu.c
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diff --git
a/arch/x86/xen/mmu.c
b/arch/x86/xen/mmu.c
index
9c479fe
..
ac161db
100644
(file)
--- a/
arch/x86/xen/mmu.c
+++ b/
arch/x86/xen/mmu.c
@@
-2888,6
+2888,7
@@
static int do_remap_gfn(struct vm_area_struct *vma,
addr += range;
if (err_ptr)
err_ptr += batch;
+ cond_resched();
}
out: