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Mon, 14 Jun 2021 11:02:30 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org Cc: akpm@linux-foundation.org, Linus Torvalds , "Aneesh Kumar K.V" Subject: [PATCH 2/2] mm: Change p4d_page_vaddr to return pud_t * Date: Mon, 14 Jun 2021 16:32:23 +0530 Message-Id: <20210614110223.133678-2-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210614110223.133678-1-aneesh.kumar@linux.ibm.com> References: <20210614110223.133678-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: WAFZu9Sq6Mf0XNf4Yt7B4yH4ROeV-yJC X-Proofpoint-ORIG-GUID: WAFZu9Sq6Mf0XNf4Yt7B4yH4ROeV-yJC X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391,18.0.761 definitions=2021-06-14_04:2021-06-14,2021-06-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=999 suspectscore=0 malwarescore=0 adultscore=0 mlxscore=0 spamscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106140074 Authentication-Results: imf06.hostedemail.com; 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Signed-off-by: Aneesh Kumar K.V --- arch/arm64/include/asm/pgtable.h | 4 ++-- arch/ia64/include/asm/pgtable.h | 2 +- arch/mips/include/asm/pgtable-64.h | 4 ++-- arch/powerpc/include/asm/book3s/64/pgtable.h | 5 ++++- arch/powerpc/include/asm/nohash/64/pgtable-4k.h | 6 +++++- arch/powerpc/mm/book3s64/radix_pgtable.c | 2 +- arch/sparc/include/asm/pgtable_64.h | 2 +- arch/x86/include/asm/pgtable.h | 4 ++-- include/asm-generic/pgtable-nopud.h | 2 +- include/linux/pgtable.h | 2 +- 10 files changed, 20 insertions(+), 13 deletions(-) diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 9415d8287f87..108f2a0911df 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -697,9 +697,9 @@ static inline phys_addr_t p4d_page_paddr(p4d_t p4d) return __p4d_to_phys(p4d); } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_page_vaddr(p4d_t p4d) { - return (unsigned long)__va(p4d_page_paddr(p4d)); + return (pud_t *)__va(p4d_page_paddr(p4d)); } /* Find an entry in the frst-level page table. */ diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index c4999a4c0eaf..1947e4087198 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -282,7 +282,7 @@ ia64_phys_addr_valid (unsigned long addr) #define p4d_bad(p4d) (!ia64_phys_addr_valid(p4d_val(p4d))) #define p4d_present(p4d) (p4d_val(p4d) != 0UL) #define p4d_clear(p4dp) (p4d_val(*(p4dp)) = 0UL) -#define p4d_page_vaddr(p4d) ((unsigned long) __va(p4d_val(p4d) & _PFN_MASK)) +#define p4d_page_vaddr(p4d) ((pud_t *) __va(p4d_val(p4d) & _PFN_MASK)) #define p4d_page(p4d) virt_to_page((p4d_val(p4d) + PAGE_OFFSET)) #endif diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h index 60680a1c26bd..a71f9956c627 100644 --- a/arch/mips/include/asm/pgtable-64.h +++ b/arch/mips/include/asm/pgtable-64.h @@ -210,9 +210,9 @@ static inline void p4d_clear(p4d_t *p4dp) p4d_val(*p4dp) = (unsigned long)invalid_pud_table; } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_page_vaddr(p4d_t p4d) { - return p4d_val(p4d); + return (pud_t *)p4d_val(p4d); } #define p4d_phys(p4d) virt_to_phys((void *)p4d_val(p4d)) diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index 0ed8b65a230e..6bfebd92e152 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -1048,7 +1048,10 @@ extern struct page *p4d_page(p4d_t p4d); /* Pointers in the page table tree are physical addresses */ #define __pgtable_ptr_val(ptr) __pa(ptr) -#define p4d_page_vaddr(p4d) __va(p4d_val(p4d) & ~P4D_MASKED_BITS) +static inline pud_t *p4d_page_vaddr(p4d_t p4d) +{ + return (pud_t *)__va(p4d_val(p4d) & ~P4D_MASKED_BITS); +} static inline pmd_t *pud_page_vaddr(pud_t pud) { diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h index fe2f4c9acd9e..3902c3fda349 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h @@ -56,10 +56,14 @@ #define p4d_none(p4d) (!p4d_val(p4d)) #define p4d_bad(p4d) (p4d_val(p4d) == 0) #define p4d_present(p4d) (p4d_val(p4d) != 0) -#define p4d_page_vaddr(p4d) (p4d_val(p4d) & ~P4D_MASKED_BITS) #ifndef __ASSEMBLY__ +static inline pud_t *p4d_page_vaddr(p4d_t p4d) +{ + return (pud_t *) (p4d_val(p4d) & ~P4D_MASKED_BITS); +} + static inline void p4d_clear(p4d_t *p4dp) { *p4dp = __p4d(0); diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 07e6f08a662b..63bc791cca62 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -859,7 +859,7 @@ static void __meminit remove_pagetable(unsigned long start, unsigned long end) continue; } - pud_base = (pud_t *)p4d_page_vaddr(*p4d); + pud_base = p4d_page_vaddr(*p4d); remove_pud_table(pud_base, addr, next); free_pud_table(pud_base, p4d); } diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index c9654156ce79..fc9d97f49a32 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -861,7 +861,7 @@ static inline pmd_t *pud_page_vaddr(pud_t pud) #define pud_present(pud) (pud_val(pud) != 0U) #define pud_clear(pudp) (pud_val(*(pudp)) = 0UL) #define p4d_page_vaddr(p4d) \ - ((unsigned long) __va(p4d_val(p4d))) + ((pud_t *) __va(p4d_val(p4d))) #define p4d_present(p4d) (p4d_val(p4d) != 0U) #define p4d_clear(p4dp) (p4d_val(*(p4dp)) = 0UL) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 845b84967e2d..f37b96320a17 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -906,9 +906,9 @@ static inline int p4d_present(p4d_t p4d) return p4d_flags(p4d) & _PAGE_PRESENT; } -static inline unsigned long p4d_page_vaddr(p4d_t p4d) +static inline pud_t *p4d_page_vaddr(p4d_t p4d) { - return (unsigned long)__va(p4d_val(p4d) & p4d_pfn_mask(p4d)); + return (pud_t *)__va(p4d_val(p4d) & p4d_pfn_mask(p4d)); } /* diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h index a9d751fbda9e..430ad3f177e2 100644 --- a/include/asm-generic/pgtable-nopud.h +++ b/include/asm-generic/pgtable-nopud.h @@ -49,7 +49,7 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) #define __pud(x) ((pud_t) { __p4d(x) }) #define p4d_page(p4d) (pud_page((pud_t){ p4d })) -#define p4d_page_vaddr(p4d) (pud_page_vaddr((pud_t){ p4d })) +#define p4d_page_vaddr(p4d) (pud_t *)(pud_page_vaddr((pud_t){ p4d })) /* * allocating and freeing a pud is trivial: the 1-entry pud is diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index b8d260153f5b..bd35e0f47565 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -96,7 +96,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #ifndef pud_offset static inline pud_t *pud_offset(p4d_t *p4d, unsigned long address) { - return (pud_t *)p4d_page_vaddr(*p4d) + pud_index(address); + return p4d_page_vaddr(*p4d) + pud_index(address); } #define pud_offset pud_offset #endif