Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/um/include/asm/pgalloc.h b/arch/um/include/asm/pgalloc.h
index 881e76d..2bbf28c 100644
--- a/arch/um/include/asm/pgalloc.h
+++ b/arch/um/include/asm/pgalloc.h
@@ -10,7 +10,7 @@
 
 #include <linux/mm.h>
 
-#include <asm-generic/pgalloc.h>	/* for pte_{alloc,free}_one */
+#include <asm-generic/pgalloc.h>
 
 #define pmd_populate_kernel(mm, pmd, pte) \
 	set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte)))
@@ -25,7 +25,6 @@
  * Allocate and free page tables.
  */
 extern pgd_t *pgd_alloc(struct mm_struct *);
-extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
 
 #define __pte_free_tlb(tlb,pte, address)		\
 do {							\
@@ -35,12 +34,12 @@
 
 #ifdef CONFIG_3_LEVEL_PGTABLES
 
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
-	free_page((unsigned long)pmd);
-}
+#define __pmd_free_tlb(tlb, pmd, address)		\
+do {							\
+	pgtable_pmd_page_dtor(virt_to_page(pmd));	\
+	tlb_remove_page((tlb),virt_to_page(pmd));	\
+} while (0)						\
 
-#define __pmd_free_tlb(tlb,x, address)   tlb_remove_page((tlb),virt_to_page(x))
 #endif
 
 #endif