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| author |   Helge Deller <deller@gmx.de> | 2015-03-16 21:17:50 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2015-03-23 12:28:16 +0100 |
| commit | 2e3f0ab2bb4853694570b9610b1fcfbfa8fd295b (patch) | |
| tree | 7a8ae5f7f011a24e2b818afa2a1331e602f3186f /arch | |
| parent | parisc: mm: don't count preallocated pmds (diff) | |
| download | linux-dev-2e3f0ab2bb4853694570b9610b1fcfbfa8fd295b.tar.xz linux-dev-2e3f0ab2bb4853694570b9610b1fcfbfa8fd295b.zip | |
parisc: Fix pmd code to depend on PT_NLEVELS value, not on CONFIG_64BIT
Make the code which sets up the pmd depend on PT_NLEVELS == 3, not on
CONFIG_64BIT. The reason is, that a 64bit kernel with a page size
greater than 4k doesn't need the pmd and thus has PT_NLEVELS = 2.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/parisc/include/asm/pgalloc.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h index 63e9ecae1310..d17437238a2c 100644 --- a/arch/parisc/include/asm/pgalloc.h +++ b/arch/parisc/include/asm/pgalloc.h @@ -26,7 +26,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) if (likely(pgd != NULL)) { memset(pgd, 0, PAGE_SIZE<<PGD_ALLOC_ORDER); -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 actual_pgd += PTRS_PER_PGD; /* Populate first pmd with allocated memory. We mark it * with PxD_FLAG_ATTACHED as a signal to the system that this @@ -45,7 +45,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 pgd -= PTRS_PER_PGD; #endif free_pages((unsigned long)pgd, PGD_ALLOC_ORDER); @@ -72,7 +72,6 @@ static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { -#ifdef CONFIG_64BIT if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) /* * This is the permanent pmd attached to the pgd; @@ -82,7 +81,6 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) */ mm_inc_nr_pmds(mm); return; -#endif free_pages((unsigned long)pmd, PMD_ORDER); } @@ -104,7 +102,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 /* preserve the gateway marker if this is the beginning of * the permanent pmd */ if(pmd_flag(*pmd) & PxD_FLAG_ATTACHED) |