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| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-09-24 01:35:28 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-09-25 01:54:09 +0300 |
| commit | 1b9a9d8564cbc49e1e5529460ca70bf7353aa4d1 (patch) | |
| tree | 940cd65e065446cd281fa147084612122c4fa476 /arch/microblaze | |
| parent | 6fb12766f7fcd7934b09fbfbd32a725cc2febf96 (diff) | |
| download | linux-1b9a9d8564cbc49e1e5529460ca70bf7353aa4d1.tar.xz | |
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@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/pgalloc.h | 39 |
1 files changed, 3 insertions, 36 deletions
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h index ac0731881751..7ecb05baa601 100644 --- a/arch/microblaze/include/asm/pgalloc.h +++ b/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) \ |