@@ -134,6 +134,12 @@ static int hwpoison_filter_dev(struct page *p)
if (PageSlab(p))
return -EINVAL;
+ if (pfn_valid(page_to_pfn(p))) {
+ if (is_device_fsdax_page(p))
+ return 0;
+ } else
+ return -EINVAL;
+
Just curious, what is the rational for preventing dax pages from
participating in hwpoison_filter test?
+int mf_dax_kill_procs(struct address_space *mapping, pgoff_t index, int flags)
+{
+ LIST_HEAD(to_kill);
+ /* load the pfn of the dax mapping file */
+ unsigned long pfn = dax_load_pfn(mapping, index);
+
+ /* the failure pfn may not actually be mmapped, so no need to
+ * unmap and kill procs */
+ if (!pfn)
+ return 0;
what if a process has mapped the file but never faulted in, but did ask
for early signal, will it be excluded due to lack of the 'pfn' association?
thanks,
-jane
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