[PATCH v2 1/9] x86/xen: update xen_oldmem_pfn_is_ram() documentation
David Hildenbrand
david at redhat.com
Tue Oct 5 05:14:22 PDT 2021
The callback is only used for the vmcore nowadays.
Reviewed-by: Boris Ostrovsky <boris.ostrvsky at oracle.com>
Signed-off-by: David Hildenbrand <david at redhat.com>
---
arch/x86/xen/mmu_hvm.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/arch/x86/xen/mmu_hvm.c b/arch/x86/xen/mmu_hvm.c
index 57409373750f..b242d1f4b426 100644
--- a/arch/x86/xen/mmu_hvm.c
+++ b/arch/x86/xen/mmu_hvm.c
@@ -9,12 +9,9 @@
#ifdef CONFIG_PROC_VMCORE
/*
- * This function is used in two contexts:
- * - the kdump kernel has to check whether a pfn of the crashed kernel
- * was a ballooned page. vmcore is using this function to decide
- * whether to access a pfn of the crashed kernel.
- * - the kexec kernel has to check whether a pfn was ballooned by the
- * previous kernel. If the pfn is ballooned, handle it properly.
+ * The kdump kernel has to check whether a pfn of the crashed kernel
+ * was a ballooned page. vmcore is using this function to decide
+ * whether to access a pfn of the crashed kernel.
* Returns 0 if the pfn is not backed by a RAM page, the caller may
* handle the pfn special in this case.
*/
--
2.31.1
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