The patch titled
Subject: microblaze: switch to generic version of pte allocation
has been added to the -mm tree. Its filename is
microblaze-switch-to-generic-version-of-pte-allocation.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/microblaze-switch-to-generic-version-of-pte-allocation.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/microblaze-switch-to-generic-version-of-pte-allocation.patch
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Subject: microblaze: switch to generic version of pte allocation
The microblaze implementation of pte_alloc_one() has a provision to
allocated PTEs from high memory, but neither CONFIG_HIGHPTE nor pte_map*()
versions for suitable for HIGHPTE are defined.
Except that, microblaze version of pte_alloc_one() is identical to the
generic one as well as the implementations of pte_free() and
pte_free_kernel().
Switch microblaze to use the generic versions of these functions. Also
remove pte_free_slow() that is not referenced anywhere in the code.
Link: http://lkml.kernel.org/r/1565690952-32158-1-git-send-email-rppt@xxxxxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/microblaze/include/asm/pgalloc.h | 39 +-----------------------
1 file changed, 3 insertions(+), 36 deletions(-)
--- a/arch/microblaze/include/asm/pgalloc.h~microblaze-switch-to-generic-version-of-pte-allocation
+++ a/arch/microblaze/include/asm/pgalloc.h
@@ -21,6 +21,9 @@
#include <asm/cache.h>
#include <asm/pgtable.h>
+#define __HAVE_ARCH_PTE_ALLOC_ONE_KERNEL
+#include <asm-generic/pgalloc.h>
+
extern void __bad_pte(pmd_t *pmd);
static inline pgd_t *get_pgd(void)
@@ -47,42 +50,6 @@ static inline void free_pgd(pgd_t *pgd)
extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm);
-static inline struct page *pte_alloc_one(struct mm_struct *mm)
-{
- struct page *ptepage;
-
-#ifdef CONFIG_HIGHPTE
- int flags = GFP_KERNEL | __GFP_ZERO | __GFP_HIGHMEM;
-#else
- int flags = GFP_KERNEL | __GFP_ZERO;
-#endif
-
- ptepage = alloc_pages(flags, 0);
- if (!ptepage)
- return NULL;
- if (!pgtable_page_ctor(ptepage)) {
- __free_page(ptepage);
- return NULL;
- }
- return ptepage;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free_slow(struct page *ptepage)
-{
- __free_page(ptepage);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
-{
- pgtable_page_dtor(ptepage);
- __free_page(ptepage);
-}
-
#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte))
#define pmd_populate(mm, pmd, pte) \
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxx are
ia64-switch-to-generic-version-of-pte-allocation.patch
sh-switch-to-generic-version-of-pte-allocation.patch
microblaze-switch-to-generic-version-of-pte-allocation.patch
mm-use-cpu_bits_none-to-initialize-init_mmcpu_bitmask.patch
mm-madvise-reduce-code-duplication-in-error-handling-paths.patch
