[PATCH v2 1/9] hugetlb: Pass vma into huge_pte_alloc()
From: Axel Rasmussen <axelrasmussen@google.com>
Date: 2021-01-22 21:32:03
Also in:
linux-fsdevel, linux-mm
Subsystem:
arm64 port (aarch64 architecture), hugetlb subsystem, linux for powerpc (32-bit and 64-bit), memory management, memory management - userfaultfd, mips, parisc architecture, s390 architecture, sparc + ultrasparc (sparc/sparc64), superh, the rest · Maintainers:
Catalin Marinas, Will Deacon, Muchun Song, Oscar Salvador, Madhavan Srinivasan, Michael Ellerman, Andrew Morton, Mike Rapoport, Thomas Bogendoerfer, "James E.J. Bottomley", Helge Deller, Heiko Carstens, Vasily Gorbik, Alexander Gordeev, "David S. Miller", Andreas Larsson, Yoshinori Sato, Rich Felker, John Paul Adrian Glaubitz, Linus Torvalds
From: Peter Xu <peterx@redhat.com> It is a preparation work to be able to behave differently in the per architecture huge_pte_alloc() according to different VMA attributes. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> --- arch/arm64/mm/hugetlbpage.c | 2 +- arch/ia64/mm/hugetlbpage.c | 3 ++- arch/mips/mm/hugetlbpage.c | 4 ++-- arch/parisc/mm/hugetlbpage.c | 2 +- arch/powerpc/mm/hugetlbpage.c | 3 ++- arch/s390/mm/hugetlbpage.c | 2 +- arch/sh/mm/hugetlbpage.c | 2 +- arch/sparc/mm/hugetlbpage.c | 2 +- include/linux/hugetlb.h | 2 +- mm/hugetlb.c | 6 +++--- mm/userfaultfd.c | 2 +- 11 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 55ecf6de9ff7..5b32ec888698 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c@@ -252,7 +252,7 @@ void set_huge_swap_pte_at(struct mm_struct *mm, unsigned long addr, set_pte(ptep, pte); } -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgdp;
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index b331f94d20ac..f993cb36c062 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c@@ -25,7 +25,8 @@ unsigned int hpage_shift = HPAGE_SHIFT_DEFAULT; EXPORT_SYMBOL(hpage_shift); pte_t * -huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) +huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long addr, unsigned long sz) { unsigned long taddr = htlbpage_to_page(addr); pgd_t *pgd;
diff --git a/arch/mips/mm/hugetlbpage.c b/arch/mips/mm/hugetlbpage.c
index b9f76f433617..871a100fb361 100644
--- a/arch/mips/mm/hugetlbpage.c
+++ b/arch/mips/mm/hugetlbpage.c@@ -21,8 +21,8 @@ #include <asm/tlb.h> #include <asm/tlbflush.h> -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, - unsigned long sz) +pte_t *huge_pte_alloc(struct mm_struct *mm, structt vm_area_struct *vma, + unsigned long addr, unsigned long sz) { pgd_t *pgd; p4d_t *p4d;
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index d7ba014a7fbb..e141441bfa64 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c@@ -44,7 +44,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr, } -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgd;
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index 8b3cc4d688e8..d57276b8791c 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c@@ -106,7 +106,8 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, * At this point we do the placement change only for BOOK3S 64. This would * possibly work on other subarchs. */ -pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz) +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long addr, unsigned long sz) { pgd_t *pg; p4d_t *p4;
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 3b5a4d25ca9b..da36d13ffc16 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c@@ -189,7 +189,7 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, return pte; } -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgdp;
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c
index 220d7bc43d2b..999ab5916e69 100644
--- a/arch/sh/mm/hugetlbpage.c
+++ b/arch/sh/mm/hugetlbpage.c@@ -21,7 +21,7 @@ #include <asm/tlbflush.h> #include <asm/cacheflush.h> -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgd;
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index ad4b42f04988..04d8790f6c32 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c@@ -279,7 +279,7 @@ unsigned long pud_leaf_size(pud_t pud) { return 1UL << tte_to_shift(*(pte_t *)&p unsigned long pmd_leaf_size(pmd_t pmd) { return 1UL << tte_to_shift(*(pte_t *)&pmd); } unsigned long pte_leaf_size(pte_t pte) { return 1UL << tte_to_shift(pte); } -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgd;
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index ebca2ef02212..1e0abb609976 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h@@ -161,7 +161,7 @@ extern struct list_head huge_boot_pages; /* arch callbacks */ -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz); pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr, unsigned long sz);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 18f6ee317900..07b23c81b1db 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c@@ -3766,7 +3766,7 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, src_pte = huge_pte_offset(src, addr, sz); if (!src_pte) continue; - dst_pte = huge_pte_alloc(dst, addr, sz); + dst_pte = huge_pte_alloc(dst, vma, addr, sz); if (!dst_pte) { ret = -ENOMEM; break;
@@ -4503,7 +4503,7 @@ vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, */ mapping = vma->vm_file->f_mapping; i_mmap_lock_read(mapping); - ptep = huge_pte_alloc(mm, haddr, huge_page_size(h)); + ptep = huge_pte_alloc(mm, vma, haddr, huge_page_size(h)); if (!ptep) { i_mmap_unlock_read(mapping); return VM_FAULT_OOM;
@@ -5392,7 +5392,7 @@ void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, #endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ #ifdef CONFIG_ARCH_WANT_GENERAL_HUGETLB -pte_t *huge_pte_alloc(struct mm_struct *mm, +pte_t *huge_pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long addr, unsigned long sz) { pgd_t *pgd;
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 7423808640ef..b2ce61c1b50d 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c@@ -290,7 +290,7 @@ static __always_inline ssize_t __mcopy_atomic_hugetlb(struct mm_struct *dst_mm, mutex_lock(&hugetlb_fault_mutex_table[hash]); err = -ENOMEM; - dst_pte = huge_pte_alloc(dst_mm, dst_addr, vma_hpagesize); + dst_pte = huge_pte_alloc(dst_mm, dst_vma, dst_addr, vma_hpagesize); if (!dst_pte) { mutex_unlock(&hugetlb_fault_mutex_table[hash]); i_mmap_unlock_read(mapping);
--
2.30.0.280.ga3ce27912f-goog