3 files changed, 17 insertions, 0 deletions

diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index e2bd73e8f9c0..f4d4120e5128 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -129,6 +129,10 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addres
 #define move_pte(pte, prot, old_addr, new_addr) (pte)
 #endif
 
+#ifndef flush_tlb_fix_spurious_fault
+#define flush_tlb_fix_spurious_fault(vma, address) flush_tlb_page(vma, address)
+#endif
+
 #ifndef pgprot_noncached
 #define pgprot_noncached(prot)  (prot)
 #endif
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index ef2af9948eac..f4229fb315e1 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -687,7 +687,9 @@
                                 - LOAD_OFFSET) {                        \
                 VMLINUX_SYMBOL(__per_cpu_start) = .;                    \
                 *(.data..percpu..first)                                 \
+                . = ALIGN(PAGE_SIZE);                                   \
                 *(.data..percpu..page_aligned)                          \
+                *(.data..percpu..readmostly)                            \
                 *(.data..percpu)                                        \
                 *(.data..percpu..shared_aligned)                        \
                 VMLINUX_SYMBOL(__per_cpu_end) = .;                      \
@@ -713,7 +715,9 @@
                 VMLINUX_SYMBOL(__per_cpu_load) = .;                     \
                 VMLINUX_SYMBOL(__per_cpu_start) = .;                    \
                 *(.data..percpu..first)                                 \
+                . = ALIGN(PAGE_SIZE);                                   \
                 *(.data..percpu..page_aligned)                          \
+                *(.data..percpu..readmostly)                            \
                 *(.data..percpu)                                        \
                 *(.data..percpu..shared_aligned)                        \
                 VMLINUX_SYMBOL(__per_cpu_end) = .;                      \
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index ce2dc655cd1d..27ef6b190ea6 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -139,6 +139,15 @@
         __aligned(PAGE_SIZE)
 
 /*
+ * Declaration/definition used for per-CPU variables that must be read mostly.
+ */
+#define DECLARE_PER_CPU_READ_MOSTLY(type, name)                 \
+        DECLARE_PER_CPU_SECTION(type, name, "..readmostly")
+
+#define DEFINE_PER_CPU_READ_MOSTLY(type, name)                          \
+        DEFINE_PER_CPU_SECTION(type, name, "..readmostly")
+
+/*
  * Intermodule exports for per-CPU variables.  sparse forgets about
  * address space across EXPORT_SYMBOL(), change EXPORT_SYMBOL() to
  * noop if __CHECKER__.