summaryrefslogtreecommitdiff
path: root/include/linux/pgtable.h
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-11-30 08:33:06 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-11-30 08:33:06 +0100
commit3473065927a877e0a15c4d4b64f245ccaba24e3f (patch)
tree5d4ebdd84c192e8b2ca6c8f6be32e07f240c836c /include/linux/pgtable.h
parentf80c21509984190b7fd462ed2c9ac5a294a99dc5 (diff)
parentb65054597872ce3aefbc6a666385eabdf9e288da (diff)
Merge 5.10-rc6 into char-misc-next
We need the fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/pgtable.h')
-rw-r--r--include/linux/pgtable.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 71125a4676c4..e237004d498d 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -1427,6 +1427,19 @@ typedef unsigned int pgtbl_mod_mask;
#endif /* !__ASSEMBLY__ */
+#if !defined(MAX_POSSIBLE_PHYSMEM_BITS) && !defined(CONFIG_64BIT)
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+/*
+ * ZSMALLOC needs to know the highest PFN on 32-bit architectures
+ * with physical address space extension, but falls back to
+ * BITS_PER_LONG otherwise.
+ */
+#error Missing MAX_POSSIBLE_PHYSMEM_BITS definition
+#else
+#define MAX_POSSIBLE_PHYSMEM_BITS 32
+#endif
+#endif
+
#ifndef has_transparent_hugepage
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define has_transparent_hugepage() 1