Re: [PATCH v5 5/5] s390/vmcore: Use vmcore for zfcpdump

From: HATAYAMA Daisuke
Date: Tue Jun 11 2013 - 19:48:31 EST


(2013/06/08 1:56), Michael Holzheu wrote:
<cut>
@@ -82,6 +116,43 @@ int remap_oldmem_pfn_range(struct vm_area_struct *vma, unsigned long from,
}

/*
+ * Remap "oldmem" for zfcpdump
+ *
+ * We only map available memory above ZFCPDUMP_HSA_SIZE. Memory below
+ * ZFCPDUMP_HSA_SIZE is read on demand using the copy_oldmem_page() function.
+ */
+static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma,
+ unsigned long from,
+ unsigned long pfn,
+ unsigned long size, pgprot_t prot)
+{
+ unsigned long size_hsa;
+
+ if (pfn < ZFCPDUMP_HSA_SIZE >> PAGE_SHIFT) {
+ size_hsa = min(size, OLDMEM_SIZE - (pfn << PAGE_SHIFT));

ZFCPDUMP_HSA_SIZE?

--
Thanks.
HATAYAMA, Daisuke

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/