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authorLinus Torvalds <torvalds@linux-foundation.org>2024-05-19 09:21:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-05-19 09:21:03 -0700
commit61307b7be41a1f1039d1d1368810a1d92cb97b44 (patch)
tree639e233e177f8618cd5f86daeb7efc6b095890f0 /arch
parent0450d2083be6bdcd18c9535ac50c55266499b2df (diff)
parent76edc534cc289308130272a2ac28694fc9b72a03 (diff)
Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton: "The usual shower of singleton fixes and minor series all over MM, documented (hopefully adequately) in the respective changelogs. Notable series include: - Lucas Stach has provided some page-mapping cleanup/consolidation/ maintainability work in the series "mm/treewide: Remove pXd_huge() API". - In the series "Allow migrate on protnone reference with MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's MPOL_PREFERRED_MANY mode, yielding almost doubled performance in one test. - In their series "Memory allocation profiling" Kent Overstreet and Suren Baghdasaryan have contributed a means of determining (via /proc/allocinfo) whereabouts in the kernel memory is being allocated: number of calls and amount of memory. - Matthew Wilcox has provided the series "Various significant MM patches" which does a number of rather unrelated things, but in largely similar code sites. - In his series "mm: page_alloc: freelist migratetype hygiene" Johannes Weiner has fixed the page allocator's handling of migratetype requests, with resulting improvements in compaction efficiency. - In the series "make the hugetlb migration strategy consistent" Baolin Wang has fixed a hugetlb migration issue, which should improve hugetlb allocation reliability. - Liu Shixin has hit an I/O meltdown caused by readahead in a memory-tight memcg. Addressed in the series "Fix I/O high when memory almost met memcg limit". - In the series "mm/filemap: optimize folio adding and splitting" Kairui Song has optimized pagecache insertion, yielding ~10% performance improvement in one test. - Baoquan He has cleaned up and consolidated the early zone initialization code in the series "mm/mm_init.c: refactor free_area_init_core()". - Baoquan has also redone some MM initializatio code in the series "mm/init: minor clean up and improvement". - MM helper cleanups from Christoph Hellwig in his series "remove follow_pfn". - More cleanups from Matthew Wilcox in the series "Various page->flags cleanups". - Vlastimil Babka has contributed maintainability improvements in the series "memcg_kmem hooks refactoring". - More folio conversions and cleanups in Matthew Wilcox's series: "Convert huge_zero_page to huge_zero_folio" "khugepaged folio conversions" "Remove page_idle and page_young wrappers" "Use folio APIs in procfs" "Clean up __folio_put()" "Some cleanups for memory-failure" "Remove page_mapping()" "More folio compat code removal" - David Hildenbrand chipped in with "fs/proc/task_mmu: convert hugetlb functions to work on folis". - Code consolidation and cleanup work related to GUP's handling of hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2". - Rick Edgecombe has developed some fixes to stack guard gaps in the series "Cover a guard gap corner case". - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the series "mm/ksm: fix ksm exec support for prctl". - Baolin Wang has implemented NUMA balancing for multi-size THPs. This is a simple first-cut implementation for now. The series is "support multi-size THP numa balancing". - Cleanups to vma handling helper functions from Matthew Wilcox in the series "Unify vma_address and vma_pgoff_address". - Some selftests maintenance work from Dev Jain in the series "selftests/mm: mremap_test: Optimizations and style fixes". - Improvements to the swapping of multi-size THPs from Ryan Roberts in the series "Swap-out mTHP without splitting". - Kefeng Wang has significantly optimized the handling of arm64's permission page faults in the series "arch/mm/fault: accelerate pagefault when badaccess" "mm: remove arch's private VM_FAULT_BADMAP/BADACCESS" - GUP cleanups from David Hildenbrand in "mm/gup: consistently call it GUP-fast". - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault path to use struct vm_fault". - selftests build fixes from John Hubbard in the series "Fix selftests/mm build without requiring "make headers"". - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the series "Improved Memory Tier Creation for CPUless NUMA Nodes". Fixes the initialization code so that migration between different memory types works as intended. - David Hildenbrand has improved follow_pte() and fixed an errant driver in the series "mm: follow_pte() improvements and acrn follow_pte() fixes". - David also did some cleanup work on large folio mapcounts in his series "mm: mapcount for large folios + page_mapcount() cleanups". - Folio conversions in KSM in Alex Shi's series "transfer page to folio in KSM". - Barry Song has added some sysfs stats for monitoring multi-size THP's in the series "mm: add per-order mTHP alloc and swpout counters". - Some zswap cleanups from Yosry Ahmed in the series "zswap same-filled and limit checking cleanups". - Matthew Wilcox has been looking at buffer_head code and found the documentation to be lacking. The series is "Improve buffer head documentation". - Multi-size THPs get more work, this time from Lance Yang. His series "mm/madvise: enhance lazyfreeing with mTHP in madvise_free" optimizes the freeing of these things. - Kemeng Shi has added more userspace-visible writeback instrumentation in the series "Improve visibility of writeback". - Kemeng Shi then sent some maintenance work on top in the series "Fix and cleanups to page-writeback". - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in the series "Improve anon_vma scalability for anon VMAs". Intel's test bot reported an improbable 3x improvement in one test. - SeongJae Park adds some DAMON feature work in the series "mm/damon: add a DAMOS filter type for page granularity access recheck" "selftests/damon: add DAMOS quota goal test" - Also some maintenance work in the series "mm/damon/paddr: simplify page level access re-check for pageout" "mm/damon: misc fixes and improvements" - David Hildenbrand has disabled some known-to-fail selftests ni the series "selftests: mm: cow: flag vmsplice() hugetlb tests as XFAIL". - memcg metadata storage optimizations from Shakeel Butt in "memcg: reduce memory consumption by memcg stats". - DAX fixes and maintenance work from Vishal Verma in the series "dax/bus.c: Fixups for dax-bus locking"" * tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (426 commits) memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_wp mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_fault selftests: cgroup: add tests to verify the zswap writeback path mm: memcg: make alloc_mem_cgroup_per_node_info() return bool mm/damon/core: fix return value from damos_wmark_metric_value mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED selftests: cgroup: remove redundant enabling of memory controller Docs/mm/damon/maintainer-profile: allow posting patches based on damon/next tree Docs/mm/damon/maintainer-profile: change the maintainer's timezone from PST to PT Docs/mm/damon/design: use a list for supported filters Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file selftests/damon: classify tests for functionalities and regressions selftests/damon/_damon_sysfs: use 'is' instead of '==' for 'None' selftests/damon/_damon_sysfs: find sysfs mount point from /proc/mounts selftests/damon/_damon_sysfs: check errors from nr_schemes file reads mm/damon/core: initialize ->esz_bp from damos_quota_init_priv() selftests/damon: add a test for DAMOS quota goal ...
Diffstat (limited to 'arch')
-rw-r--r--arch/alpha/kernel/osf_sys.c5
-rw-r--r--arch/alpha/kernel/pci_iommu.c2
-rw-r--r--arch/alpha/lib/checksum.c1
-rw-r--r--arch/alpha/lib/fpreg.c1
-rw-r--r--arch/arc/include/asm/mmu-arcv2.h2
-rw-r--r--arch/arc/mm/mmap.c4
-rw-r--r--arch/arm/Kconfig2
-rw-r--r--arch/arm/include/asm/hugetlb.h6
-rw-r--r--arch/arm/include/asm/pgtable-2level.h5
-rw-r--r--arch/arm/include/asm/pgtable-3level-hwdef.h1
-rw-r--r--arch/arm/include/asm/pgtable-3level.h5
-rw-r--r--arch/arm/kernel/irq.c1
-rw-r--r--arch/arm/kernel/traps.c1
-rw-r--r--arch/arm/lib/uaccess_with_memcpy.c4
-rw-r--r--arch/arm/mm/Makefile1
-rw-r--r--arch/arm/mm/fault.c32
-rw-r--r--arch/arm/mm/hugetlbpage.c34
-rw-r--r--arch/arm/mm/mmap.c5
-rw-r--r--arch/arm64/Kconfig2
-rw-r--r--arch/arm64/include/asm/hugetlb.h6
-rw-r--r--arch/arm64/include/asm/pgtable.h80
-rw-r--r--arch/arm64/kernel/efi.c1
-rw-r--r--arch/arm64/mm/contpte.c29
-rw-r--r--arch/arm64/mm/fault.c56
-rw-r--r--arch/arm64/mm/hugetlbpage.c18
-rw-r--r--arch/arm64/mm/mteswap.c45
-rw-r--r--arch/csky/abiv1/mmap.c12
-rw-r--r--arch/loongarch/Kconfig2
-rw-r--r--arch/loongarch/include/asm/kfence.h1
-rw-r--r--arch/loongarch/mm/hugetlbpage.c12
-rw-r--r--arch/loongarch/mm/mmap.c3
-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/mips/include/asm/pgtable-32.h2
-rw-r--r--arch/mips/include/asm/pgtable-64.h2
-rw-r--r--arch/mips/jazz/jazzdma.c2
-rw-r--r--arch/mips/mm/hugetlbpage.c10
-rw-r--r--arch/mips/mm/mmap.c3
-rw-r--r--arch/mips/mm/tlb-r4k.c2
-rw-r--r--arch/parisc/kernel/sys_parisc.c6
-rw-r--r--arch/parisc/mm/hugetlbpage.c11
-rw-r--r--arch/powerpc/Kconfig2
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable-4k.h20
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable-64k.h25
-rw-r--r--arch/powerpc/include/asm/book3s/64/pgtable.h27
-rw-r--r--arch/powerpc/include/asm/mmu.h4
-rw-r--r--arch/powerpc/include/asm/nohash/pgtable.h10
-rw-r--r--arch/powerpc/kernel/dma-iommu.c2
-rw-r--r--arch/powerpc/kernel/fadump.c5
-rw-r--r--arch/powerpc/kernel/iommu.c1
-rw-r--r--arch/powerpc/mm/book3s64/pgtable.c1
-rw-r--r--arch/powerpc/mm/book3s64/slice.c20
-rw-r--r--arch/powerpc/mm/fault.c33
-rw-r--r--arch/powerpc/mm/mem.c1
-rw-r--r--arch/powerpc/mm/pgtable_64.c6
-rw-r--r--arch/powerpc/platforms/ps3/system-bus.c4
-rw-r--r--arch/powerpc/platforms/pseries/vio.c2
-rw-r--r--arch/riscv/Kconfig2
-rw-r--r--arch/riscv/include/asm/hugetlb.h6
-rw-r--r--arch/riscv/include/asm/pgtable.h1
-rw-r--r--arch/riscv/kernel/elf_kexec.c1
-rw-r--r--arch/riscv/kernel/probes/kprobes.c1
-rw-r--r--arch/riscv/mm/fault.c5
-rw-r--r--arch/riscv/mm/hugetlbpage.c10
-rw-r--r--arch/s390/Kconfig2
-rw-r--r--arch/s390/include/asm/hugetlb.h6
-rw-r--r--arch/s390/include/asm/pgtable.h5
-rw-r--r--arch/s390/kernel/cert_store.c1
-rw-r--r--arch/s390/kernel/ipl.c1
-rw-r--r--arch/s390/mm/fault.c3
-rw-r--r--arch/s390/mm/hugetlbpage.c19
-rw-r--r--arch/s390/mm/mmap.c9
-rw-r--r--arch/s390/pci/pci_mmio.c4
-rw-r--r--arch/sh/Kconfig2
-rw-r--r--arch/sh/include/asm/hugetlb.h6
-rw-r--r--arch/sh/mm/cache-sh4.c5
-rw-r--r--arch/sh/mm/cache.c2
-rw-r--r--arch/sh/mm/hugetlbpage.c10
-rw-r--r--arch/sh/mm/mmap.c5
-rw-r--r--arch/sparc/include/asm/pgtable_64.h3
-rw-r--r--arch/sparc/kernel/sys_sparc_32.c3
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c20
-rw-r--r--arch/sparc/mm/hugetlbpage.c21
-rw-r--r--arch/sparc/mm/tlb.c7
-rw-r--r--arch/um/include/shared/um_malloc.h3
-rw-r--r--arch/x86/Kconfig2
-rw-r--r--arch/x86/include/asm/io.h1
-rw-r--r--arch/x86/include/asm/pgtable.h20
-rw-r--r--arch/x86/include/asm/pgtable_64.h1
-rw-r--r--arch/x86/kernel/amd_gart_64.c2
-rw-r--r--arch/x86/kernel/cpu/sgx/driver.c2
-rw-r--r--arch/x86/kernel/cpu/sgx/main.c1
-rw-r--r--arch/x86/kernel/irq_64.c1
-rw-r--r--arch/x86/kernel/setup.c2
-rw-r--r--arch/x86/kernel/sys_x86_64.c42
-rw-r--r--arch/x86/mm/fault.c24
-rw-r--r--arch/x86/mm/hugetlbpage.c35
-rw-r--r--arch/x86/mm/init.c47
-rw-r--r--arch/x86/mm/mmap.c4
-rw-r--r--arch/x86/mm/numa_32.c1
-rw-r--r--arch/x86/mm/pat/memtype.c26
-rw-r--r--arch/x86/mm/pgtable.c6
-rw-r--r--arch/xtensa/mm/cache.c6
-rw-r--r--arch/xtensa/mm/tlb.c11
103 files changed, 436 insertions, 543 deletions
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index 5db88b627439..e5f881bc8288 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1218,14 +1218,11 @@ static unsigned long
arch_get_unmapped_area_1(unsigned long addr, unsigned long len,
unsigned long limit)
{
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
- info.flags = 0;
info.length = len;
info.low_limit = addr;
info.high_limit = limit;
- info.align_mask = 0;
- info.align_offset = 0;
return vm_unmapped_area(&info);
}
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index c81183935e97..7fcf3e9b7103 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -929,7 +929,7 @@ const struct dma_map_ops alpha_pci_ops = {
.dma_supported = alpha_pci_supported,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
EXPORT_SYMBOL(alpha_pci_ops);
diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c
index 17fa230baeef..27b2a9edf3cc 100644
--- a/arch/alpha/lib/checksum.c
+++ b/arch/alpha/lib/checksum.c
@@ -15,6 +15,7 @@
#include <net/checksum.h>
#include <asm/byteorder.h>
+#include <asm/checksum.h>
static inline unsigned short from64to16(unsigned long x)
{
diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c
index eee11fb4c7f1..9a238e7536ae 100644
--- a/arch/alpha/lib/fpreg.c
+++ b/arch/alpha/lib/fpreg.c
@@ -8,6 +8,7 @@
#include <linux/compiler.h>
#include <linux/export.h>
#include <linux/preempt.h>
+#include <asm/fpu.h>
#include <asm/thread_info.h>
#include <asm/fpu.h>
diff --git a/arch/arc/include/asm/mmu-arcv2.h b/arch/arc/include/asm/mmu-arcv2.h
index ed9036d4ede3..d85dc0721907 100644
--- a/arch/arc/include/asm/mmu-arcv2.h
+++ b/arch/arc/include/asm/mmu-arcv2.h
@@ -9,6 +9,8 @@
#ifndef _ASM_ARC_MMU_ARCV2_H
#define _ASM_ARC_MMU_ARCV2_H
+#include <soc/arc/aux.h>
+
/*
* TLB Management regs
*/
diff --git a/arch/arc/mm/mmap.c b/arch/arc/mm/mmap.c
index 3c1c7ae73292..69a915297155 100644
--- a/arch/arc/mm/mmap.c
+++ b/arch/arc/mm/mmap.c
@@ -27,7 +27,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/*
* We enforce the MAP_FIXED case.
@@ -51,11 +51,9 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
info.length = len;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
- info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
return vm_unmapped_area(&info);
}
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 749d6e3788b4..ee5115252aac 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -100,7 +100,7 @@ config ARM
select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
select HAVE_EXIT_THREAD
- select HAVE_FAST_GUP if ARM_LPAE
+ select HAVE_GUP_FAST if ARM_LPAE
select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
select HAVE_FUNCTION_ERROR_INJECTION
select HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index a3a82b7158d4..b766c4b373f6 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -15,10 +15,10 @@
#include <asm/hugetlb-3level.h>
#include <asm-generic/hugetlb.h>
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
- clear_bit(PG_dcache_clean, &page->flags);
+ clear_bit(PG_dcache_clean, &folio->flags);
}
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#endif /* _ASM_ARM_HUGETLB_H */
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index b0a262566eb9..6b5392e20f41 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -213,8 +213,8 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
#define pmd_pfn(pmd) (__phys_to_pfn(pmd_val(pmd) & PHYS_MASK))
-#define pmd_leaf(pmd) (pmd_val(pmd) & 2)
-#define pmd_bad(pmd) (pmd_val(pmd) & 2)
+#define pmd_leaf(pmd) (pmd_val(pmd) & PMD_TYPE_SECT)
+#define pmd_bad(pmd) pmd_leaf(pmd)
#define pmd_present(pmd) (pmd_val(pmd))
#define copy_pmd(pmdpd,pmdps) \
@@ -241,7 +241,6 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
* define empty stubs for use by pin_page_for_write.
*/
#define pmd_hugewillfault(pmd) (0)
-#define pmd_thp_or_huge(pmd) (0)
#endif /* __ASSEMBLY__ */
diff --git a/arch/arm/include/asm/pgtable-3level-hwdef.h b/arch/arm/include/asm/pgtable-3level-hwdef.h
index 323ad811732e..dfab3e982cbf 100644
--- a/arch/arm/include/asm/pgtable-3level-hwdef.h
+++ b/arch/arm/include/asm/pgtable-3level-hwdef.h
@@ -14,6 +14,7 @@
* + Level 1/2 descriptor
* - common
*/
+#define PUD_TABLE_BIT (_AT(pmdval_t, 1) << 1)
#define PMD_TYPE_MASK (_AT(pmdval_t, 3) << 0)
#define PMD_TYPE_FAULT (_AT(pmdval_t, 0) << 0)
#define PMD_TYPE_TABLE (_AT(pmdval_t, 3) << 0)
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 4b1d9eb3908a..fa5939eb9864 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -112,7 +112,7 @@
#ifndef __ASSEMBLY__
#define pud_none(pud) (!pud_val(pud))
-#define pud_bad(pud) (!(pud_val(pud) & 2))
+#define pud_bad(pud) (!(pud_val(pud) & PUD_TABLE_BIT))
#define pud_present(pud) (pud_val(pud))
#define pmd_table(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \
PMD_TYPE_TABLE)
@@ -137,7 +137,7 @@ static inline pmd_t *pud_pgtable(pud_t pud)
return __va(pud_val(pud) & PHYS_MASK & (s32)PAGE_MASK);
}
-#define pmd_bad(pmd) (!(pmd_val(pmd) & 2))
+#define pmd_bad(pmd) (!(pmd_val(pmd) & PMD_TABLE_BIT))
#define copy_pmd(pmdpd,pmdps) \
do { \
@@ -190,7 +190,6 @@ static inline pte_t pte_mkspecial(pte_t pte)
#define pmd_dirty(pmd) (pmd_isset((pmd), L_PMD_SECT_DIRTY))
#define pmd_hugewillfault(pmd) (!pmd_young(pmd) || !pmd_write(pmd))
-#define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd))
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define pmd_trans_huge(pmd) (pmd_val(pmd) && !pmd_table(pmd))
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index fe28fc1f759d..dab42d066d06 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -32,6 +32,7 @@
#include <linux/kallsyms.h>
#include <linux/proc_fs.h>
#include <linux/export.h>
+#include <linux/vmalloc.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/hardware/cache-uniphier.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 72c82a4d63ac..480e307501bb 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -26,6 +26,7 @@
#include <linux/sched/debug.h>
#include <linux/sched/task_stack.h>
#include <linux/irq.h>
+#include <linux/vmalloc.h>
#include <linux/atomic.h>
#include <asm/cacheflush.h>
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 2f6163f05e93..c0ac7796d775 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -56,10 +56,10 @@ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
* to see that it's still huge and whether or not we will
* need to fault on write.
*/
- if (unlikely(pmd_thp_or_huge(*pmd))) {
+ if (unlikely(pmd_leaf(*pmd))) {
ptl = &current->mm->page_table_lock;
spin_lock(ptl);
- if (unlikely(!pmd_thp_or_huge(*pmd)
+ if (unlikely(!pmd_leaf(*pmd)
|| pmd_hugewillfault(*pmd))) {
spin_unlock(ptl);
return 0;
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index f1f231f20ff9..a195cd1d3e6d 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -21,7 +21,6 @@ KASAN_SANITIZE_physaddr.o := n
obj-$(CONFIG_DEBUG_VIRTUAL) += physaddr.o
obj-$(CONFIG_ALIGNMENT_TRAP) += alignment.o
-obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
obj-$(CONFIG_ARM_PV_FIXUP) += pv-fixup-asm.o
obj-$(CONFIG_CPU_ABRT_NOMMU) += abort-nommu.o
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index dfa9554ef331..67c425341a95 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -226,9 +226,6 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
}
#ifdef CONFIG_MMU
-#define VM_FAULT_BADMAP ((__force vm_fault_t)0x010000)
-#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x020000)
-
static inline bool is_permission_fault(unsigned int fsr)
{
int fs = fsr_fs(fsr);
@@ -323,7 +320,10 @@ do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
if (!(vma->vm_flags & vm_flags)) {
vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ fault = 0;
+ code = SEGV_ACCERR;
+ goto bad_area;
}
fault = handle_mm_fault(vma, addr, flags | FAULT_FLAG_VMA_LOCK, regs);
if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
@@ -348,7 +348,8 @@ lock_mmap:
retry:
vma = lock_mm_and_find_vma(mm, addr, regs);
if (unlikely(!vma)) {
- fault = VM_FAULT_BADMAP;
+ fault = 0;
+ code = SEGV_MAPERR;
goto bad_area;
}
@@ -356,10 +357,14 @@ retry:
* ok, we have a good vm_area for this memory access, check the
* permissions on the VMA allow for the fault which occurred.
*/
- if (!(vma->vm_flags & vm_flags))
- fault = VM_FAULT_BADACCESS;
- else
- fault = handle_mm_fault(vma, addr & PAGE_MASK, flags, regs);
+ if (!(vma->vm_flags & vm_flags)) {
+ mmap_read_unlock(mm);
+ fault = 0;
+ code = SEGV_ACCERR;
+ goto bad_area;
+ }
+
+ fault = handle_mm_fault(vma, addr & PAGE_MASK, flags, regs);
/* If we need to retry but a fatal signal is pending, handle the
* signal first. We do not need to release the mmap_lock because
@@ -385,12 +390,11 @@ retry:
mmap_read_unlock(mm);
done:
- /*
- * Handle the "normal" case first - VM_FAULT_MAJOR
- */
- if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP | VM_FAULT_BADACCESS))))
+ /* Handle the "normal" case first */
+ if (likely(!(fault & VM_FAULT_ERROR)))
return 0;
+ code = SEGV_MAPERR;
bad_area:
/*
* If we are in kernel mode at this point, we
@@ -422,8 +426,6 @@ bad_area:
* isn't in our memory map..
*/
sig = SIGSEGV;
- code = fault == VM_FAULT_BADACCESS ?
- SEGV_ACCERR : SEGV_MAPERR;
}
__do_user_fault(addr, fsr, sig, code, regs);
diff --git a/arch/arm/mm/hugetlbpage.c b/arch/arm/mm/hugetlbpage.c
deleted file mode 100644
index dd7a0277c5c0..000000000000
--- a/arch/arm/mm/hugetlbpage.c
+++ /dev/null
@@ -1,34 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * arch/arm/mm/hugetlbpage.c
- *
- * Copyright (C) 2012 ARM Ltd.
- *
- * Based on arch/x86/include/asm/hugetlb.h and Bill Carson's patches
- */
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/pagemap.h>
-#include <linux/err.h>
-#include <linux/sysctl.h>
-#include <asm/mman.h>
-#include <asm/tlb.h>
-#include <asm/tlbflush.h>
-
-/*
- * On ARM, huge pages are backed by pmd's rather than pte's, so we do a lot
- * of type casting from pmd_t * to pte_t *.
- */
-
-int pud_huge(pud_t pud)
-{
- return 0;
-}
-
-int pmd_huge(pmd_t pmd)
-{
- return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
-}
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index a0f8a0ca0788..d65d0e6ed10a 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -34,7 +34,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct vm_area_struct *vma;
int do_align = 0;
int aliasing = cache_is_vipt_aliasing();
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/*
* We only need to do colour alignment if either the I or D
@@ -68,7 +68,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
info.length = len;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
@@ -87,7 +86,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
unsigned long addr = addr0;
int do_align = 0;
int aliasing = cache_is_vipt_aliasing();
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/*
* We only need to do colour alignment if either the I or D
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 178765d64b3a..00cbb794aeda 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -205,7 +205,7 @@ config ARM64
select HAVE_SAMPLE_FTRACE_DIRECT
select HAVE_SAMPLE_FTRACE_DIRECT_MULTI
select HAVE_EFFICIENT_UNALIGNED_ACCESS
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_TRACER
select HAVE_FUNCTION_ERROR_INJECTION
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 2ddc33d93b13..3954cbd2ff56 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -18,11 +18,11 @@
extern bool arch_hugetlb_migration_supported(struct hstate *h);
#endif
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
- clear_bit(PG_dcache_clean, &page->flags);
+ clear_bit(PG_dcache_clean, &folio->flags);
}
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags);
#define arch_make_huge_pte arch_make_huge_pte
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index bde9fd179388..f8efbc128446 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -49,12 +49,6 @@
__flush_tlb_range(vma, addr, end, PUD_SIZE, false, 1)
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-static inline bool arch_thp_swp_supported(void)
-{
- return !system_supports_mte();
-}
-#define arch_thp_swp_supported arch_thp_swp_supported
-
/*
* Outside of a few very special situations (e.g. hibernation), we always
* use broadcast TLB invalidation instructions, therefore a spurious page
@@ -571,8 +565,6 @@ static inline int pmd_trans_huge(pmd_t pmd)
pte_pmd(pte_swp_clear_uffd_wp(pmd_pte(pmd)))
#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
-#define pmd_thp_or_huge(pmd) (pmd_huge(pmd) || pmd_trans_huge(pmd))
-
#define pmd_write(pmd) pte_write(pmd_pte(pmd))
#define pmd_mkhuge(pmd) (__pmd(pmd_val(pmd) & ~PMD_TABLE_BIT))
@@ -763,7 +755,11 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd)
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) (!pud_table(pud))
#define pud_present(pud) pte_present(pud_pte(pud))
+#ifndef __PAGETABLE_PMD_FOLDED
#define pud_leaf(pud) (pud_present(pud) && !pud_table(pud))
+#else
+#define pud_leaf(pud) false
+#endif
#define pud_valid(pud) pte_valid(pud_pte(pud))
#define pud_user(pud) pte_user(pud_pte(pud))
#define pud_user_exec(pud) pte_user_exec(pud_pte(pud))
@@ -1284,6 +1280,46 @@ static inline void __wrprotect_ptes(struct mm_struct *mm, unsigned long address,
__ptep_set_wrprotect(mm, address, ptep);
}
+static inline void __clear_young_dirty_pte(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ pte_t pte, cydp_t flags)
+{
+ pte_t old_pte;
+
+ do {
+ old_pte = pte;
+
+ if (flags & CYDP_CLEAR_YOUNG)
+ pte = pte_mkold(pte);
+ if (flags & CYDP_CLEAR_DIRTY)
+ pte = pte_mkclean(pte);
+
+ pte_val(pte) = cmpxchg_relaxed(&pte_val(*ptep),
+ pte_val(old_pte), pte_val(pte));
+ } while (pte_val(pte) != pte_val(old_pte));
+}
+
+static inline void __clear_young_dirty_ptes(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ unsigned int nr, cydp_t flags)
+{
+ pte_t pte;
+
+ for (;;) {
+ pte = __ptep_get(ptep);
+
+ if (flags == (CYDP_CLEAR_YOUNG | CYDP_CLEAR_DIRTY))
+ __set_pte(ptep, pte_mkclean(pte_mkold(pte)));
+ else
+ __clear_young_dirty_pte(vma, addr, ptep, pte, flags);
+
+ if (--nr == 0)
+ break;
+ ptep++;
+ addr += PAGE_SIZE;
+ }
+}
+
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
#define __HAVE_ARCH_PMDP_SET_WRPROTECT
static inline void pmdp_set_wrprotect(struct mm_struct *mm,
@@ -1338,12 +1374,7 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
#ifdef CONFIG_ARM64_MTE
#define __HAVE_ARCH_PREPARE_TO_SWAP
-static inline int arch_prepare_to_swap(struct page *page)
-{
- if (system_supports_mte())
- return mte_save_tags(page);
- return 0;
-}
+extern int arch_prepare_to_swap(struct folio *folio);
#define __HAVE_ARCH_SWAP_INVALIDATE
static inline void arch_swap_invalidate_page(int type, pgoff_t offset)
@@ -1359,11 +1390,7 @@ static inline void arch_swap_invalidate_area(int type)
}
#define __HAVE_ARCH_SWAP_RESTORE
-static inline void arch_swap_restore(swp_entry_t entry, struct folio *folio)
-{
- if (system_supports_mte())
- mte_restore_tags(entry, &folio->page);
-}
+extern void arch_swap_restore(swp_entry_t entry, struct folio *folio);
#endif /* CONFIG_ARM64_MTE */
@@ -1450,6 +1477,9 @@ extern void contpte_wrprotect_ptes(struct mm_struct *mm, unsigned long addr,
extern int contpte_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t entry, int dirty);
+extern void contpte_clear_young_dirty_ptes(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ unsigned int nr, cydp_t flags);
static __always_inline void contpte_try_fold(struct mm_struct *mm,
unsigned long addr, pte_t *ptep, pte_t pte)
@@ -1674,6 +1704,17 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
return contpte_ptep_set_access_flags(vma, addr, ptep, entry, dirty);
}
+#define clear_young_dirty_ptes clear_young_dirty_ptes
+static inline void clear_young_dirty_ptes(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ unsigned int nr, cydp_t flags)
+{
+ if (likely(nr == 1 && !pte_cont(__ptep_get(ptep))))
+ __clear_young_dirty_ptes(vma, addr, ptep, nr, flags);
+ else
+ contpte_clear_young_dirty_ptes(vma, addr, ptep, nr, flags);
+}
+
#else /* CONFIG_ARM64_CONTPTE */
#define ptep_get __ptep_get
@@ -1693,6 +1734,7 @@ static inline int ptep_set_access_flags(struct vm_area_struct *vma,
#define wrprotect_ptes __wrprotect_ptes
#define __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
#define ptep_set_access_flags __ptep_set_access_flags
+#define clear_young_dirty_ptes __clear_young_dirty_ptes
#endif /* CONFIG_ARM64_CONTPTE */
diff --git a/arch/arm64/kernel/efi.c b/arch/arm64/kernel/efi.c
index 9afcc690fe73..4a92096db34e 100644
--- a/arch/arm64/kernel/efi.c
+++ b/arch/arm64/kernel/efi.c
@@ -10,6 +10,7 @@
#include <linux/efi.h>
#include <linux/init.h>
#include <linux/screen_info.h>
+#include <linux/vmalloc.h>
#include <asm/efi.h>
#include <asm/stacktrace.h>
diff --git a/arch/arm64/mm/contpte.c b/arch/arm64/mm/contpte.c
index 1b64b4c3f8bf..9f9486de0004 100644
--- a/arch/arm64/mm/contpte.c
+++ b/arch/arm64/mm/contpte.c
@@ -361,6 +361,35 @@ void contpte_wrprotect_ptes(struct mm_struct *mm, unsigned long addr,
}
EXPORT_SYMBOL_GPL(contpte_wrprotect_ptes);
+void contpte_clear_young_dirty_ptes(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep,
+ unsigned int nr, cydp_t flags)
+{
+ /*
+ * We can safely clear access/dirty without needing to unfold from
+ * the architectures perspective, even when contpte is set. If the
+ * range starts or ends midway through a contpte block, we can just
+ * expand to include the full contpte block. While this is not
+ * exactly what the core-mm asked for, it tracks access/dirty per
+ * folio, not per page. And since we only create a contpte block
+ * when it is covered by a single folio, we can get away with
+ * clearing access/dirty for the whole block.
+ */
+ unsigned long start = addr;
+ unsigned long end = start + nr;
+
+ if (pte_cont(__ptep_get(ptep + nr - 1)))
+ end = ALIGN(end, CONT_PTE_SIZE);
+
+ if (pte_cont(__ptep_get(ptep))) {
+ start = ALIGN_DOWN(start, CONT_PTE_SIZE);
+ ptep = contpte_align_down(ptep);
+ }
+
+ __clear_young_dirty_ptes(vma, start, ptep, end - start, flags);
+}
+EXPORT_SYMBOL_GPL(contpte_clear_young_dirty_ptes);
+
int contpte_ptep_set_access_flags(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t entry, int dirty)
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 8251e2fea9c7..451ba7cbd5ad 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -486,25 +486,6 @@ static void do_bad_area(unsigned long far, unsigned long esr,
}
}
-#define VM_FAULT_BADMAP ((__force vm_fault_t)0x010000)
-#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x020000)
-
-static vm_fault_t __do_page_fault(struct mm_struct *mm,
- struct vm_area_struct *vma, unsigned long addr,
- unsigned int mm_flags, unsigned long vm_flags,
- struct pt_regs *regs)
-{
- /*
- * Ok, we have a good vm_area for this memory access, so we can handle
- * it.
- * Check that the permissions on the VMA allow for the fault which
- * occurred.
- */
- if (!(vma->vm_flags & vm_flags))
- return VM_FAULT_BADACCESS;
- return handle_mm_fault(vma, addr, mm_flags, regs);
-}
-
static bool is_el0_instruction_abort(unsigned long esr)
{
return ESR_ELx_EC(esr) == ESR_ELx_EC_IABT_LOW;
@@ -529,6 +510,7 @@ static int __kprobes do_page_fault(unsigned long far, unsigned long esr,
unsigned int mm_flags = FAULT_FLAG_DEFAULT;
unsigned long addr = untagged_addr(far);
struct vm_area_struct *vma;
+ int si_code;
if (kprobe_page_fault(regs, esr))
return 0;
@@ -588,7 +570,10 @@ static int __kprobes do_page_fault(unsigned long far, unsigned long esr,
if (!(vma->vm_flags & vm_flags)) {
vma_end_read(vma);
- goto lock_mmap;
+ fault = 0;
+ si_code = SEGV_ACCERR;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ goto bad_area;
}
fault = handle_mm_fault(vma, addr, mm_flags | FAULT_FLAG_VMA_LOCK, regs);
if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
@@ -613,12 +598,19 @@ lock_mmap:
retry:
vma = lock_mm_and_find_vma(mm, addr, regs);
if (unlikely(!vma)) {
- fault = VM_FAULT_BADMAP;
- goto done;
+ fault = 0;
+ si_code = SEGV_MAPERR;
+ goto bad_area;
}
- fault = __do_page_fault(mm, vma, addr, mm_flags, vm_flags, regs);
+ if (!(vma->vm_flags & vm_flags)) {
+ mmap_read_unlock(mm);
+ fault = 0;
+ si_code = SEGV_ACCERR;
+ goto bad_area;
+ }
+ fault = handle_mm_fault(vma, addr, mm_flags, regs);
/* Quick path to respond to signals */
if (fault_signal_pending(fault, regs)) {
if (!user_mode(regs))
@@ -637,13 +629,12 @@ retry:
mmap_read_unlock(mm);
done:
- /*
- * Handle the "normal" (no error) case first.
- */
- if (likely(!(fault & (VM_FAULT_ERROR | VM_FAULT_BADMAP |
- VM_FAULT_BADACCESS))))
+ /* Handle the "normal" (no error) case first. */
+ if (likely(!(fault & VM_FAULT_ERROR)))
return 0;
+ si_code = SEGV_MAPERR;
+bad_area:
/*
* If we are in kernel mode at this point, we have no context to
* handle this fault with.
@@ -678,13 +669,8 @@ done:
arm64_force_sig_mceerr(BUS_MCEERR_AR, far, lsb, inf->name);
} else {
- /*
- * Something tried to access memory that isn't in our memory
- * map.
- */
- arm64_force_sig_fault(SIGSEGV,
- fault == VM_FAULT_BADACCESS ? SEGV_ACCERR : SEGV_MAPERR,
- far, inf->name);
+ /* Something tried to access memory that out of memory map */
+ arm64_force_sig_fault(SIGSEGV, si_code, far, inf->name);
}
return 0;
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index b872b003a55f..3f09ac73cce3 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -79,20 +79,6 @@ bool arch_hugetlb_migration_supported(struct hstate *h)
}
#endif
-int pmd_huge(pmd_t pmd)
-{
- return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT);
-}
-
-int pud_huge(pud_t pud)
-{
-#ifndef __PAGETABLE_PMD_FOLDED
- return pud_val(pud) && !(pud_val(pud) & PUD_TABLE_BIT);
-#else
- return 0;
-#endif
-}
-
static int find_num_contig(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, size_t *pgsize)
{
@@ -328,7 +314,7 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
if (sz != PUD_SIZE && pud_none(pud))
return NULL;
/* hugepage or swap? */
- if (pud_huge(pud) || !pud_present(pud))
+ if (pud_leaf(pud) || !pud_present(pud))
return (pte_t *)pudp;
/* table; check the next level */
@@ -340,7 +326,7 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
if (!(sz == PMD_SIZE || sz == CONT_PMD_SIZE) &&
pmd_none(pmd))
return NULL;
- if (pmd_huge(pmd) || !pmd_present(pmd))
+ if (pmd_leaf(pmd) || !pmd_present(pmd))
return (pte_t *)pmdp;
if (sz == CONT_PTE_SIZE)
diff --git a/arch/arm64/mm/mteswap.c b/arch/arm64/mm/mteswap.c
index a31833e3ddc5..63e8d72f202a 100644
--- a/arch/arm64/mm/mteswap.c
+++ b/arch/arm64/mm/mteswap.c
@@ -68,6 +68,13 @@ void mte_invalidate_tags(int type, pgoff_t offset)
mte_free_tag_storage(tags);
}
+static inline void __mte_invalidate_tags(struct page *page)
+{
+ swp_entry_t entry = page_swap_entry(page);
+
+ mte_invalidate_tags(swp_type(entry), swp_offset(entry));
+}
+
void mte_invalidate_tags_area(int type)
{
swp_entry_t entry = swp_entry(type, 0);
@@ -83,3 +90,41 @@ void mte_invalidate_tags_area(int type)
}
xa_unlock(&mte_pages);
}
+
+int arch_prepare_to_swap(struct folio *folio)
+{
+ long i, nr;
+ int err;
+
+ if (!system_supports_mte())
+ return 0;
+
+ nr = folio_nr_pages(folio);
+
+ for (i = 0; i < nr; i++) {
+ err = mte_save_tags(folio_page(folio, i));
+ if (err)
+ goto out;
+ }
+ return 0;
+
+out:
+ while (i--)
+ __mte_invalidate_tags(folio_page(folio, i));
+ return err;
+}
+
+void arch_swap_restore(swp_entry_t entry, struct folio *folio)
+{
+ long i, nr;
+
+ if (!system_supports_mte())
+ return;
+
+ nr = folio_nr_pages(folio);
+
+ for (i = 0; i < nr; i++) {
+ mte_restore_tags(entry, folio_page(folio, i));
+ entry.val++;
+ }
+}
diff --git a/arch/csky/abiv1/mmap.c b/arch/csky/abiv1/mmap.c
index 6792aca49999..7f826331d409 100644
--- a/arch/csky/abiv1/mmap.c
+++ b/arch/csky/abiv1/mmap.c
@@ -28,7 +28,12 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
int do_align = 0;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {
+ .length = len,
+ .low_limit = mm->mmap_base,
+ .high_limit = TASK_SIZE,
+ .align_offset = pgoff << PAGE_SHIFT
+ };
/*
* We only need to do colour alignment if either the I or D
@@ -61,11 +66,6 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
- info.length = len;
- info.low_limit = mm->mmap_base;
- info.high_limit = TASK_SIZE;
info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
- info.align_offset = pgoff << PAGE_SHIFT;
return vm_unmapped_area(&info);
}
diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 42331d9a8dd7..4bda59525a13 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -119,7 +119,7 @@ config LOONGARCH
select HAVE_EBPF_JIT
select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN
select HAVE_EXIT_THREAD
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_ERROR_INJECTION
diff --git a/arch/loongarch/include/asm/kfence.h b/arch/loongarch/include/asm/kfence.h
index a6a5760da3a3..92636e82957c 100644
--- a/arch/loongarch/include/asm/kfence.h
+++ b/arch/loongarch/include/asm/kfence.h
@@ -10,6 +10,7 @@
#define _ASM_LOONGARCH_KFENCE_H
#include <linux/kfence.h>
+#include <linux/vmalloc.h>
#include <asm/pgtable.h>
#include <asm/tlb.h>
diff --git a/arch/loongarch/mm/hugetlbpage.c b/arch/loongarch/mm/hugetlbpage.c
index 1e76fcb83093..12222c56cb59 100644
--- a/arch/loongarch/mm/hugetlbpage.c
+++ b/arch/loongarch/mm/hugetlbpage.c
@@ -50,21 +50,11 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr,
return (pte_t *) pmd;
}
-int pmd_huge(pmd_t pmd)
-{
- return (pmd_val(pmd) & _PAGE_HUGE) != 0;
-}
-
-int pud_huge(pud_t pud)
-{
- return (pud_val(pud) & _PAGE_HUGE) != 0;
-}
-
uint64_t pmd_to_entrylo(unsigned long pmd_val)
{
uint64_t val;
/* PMD as PTE. Must be huge page */
- if (!pmd_huge(__pmd(pmd_val)))
+ if (!pmd_leaf(__pmd(pmd_val)))
panic("%s", __func__);
val = pmd_val ^ _PAGE_HUGE;
diff --git a/arch/loongarch/mm/mmap.c b/arch/loongarch/mm/mmap.c
index 89af7c12e8c0..889030985135 100644
--- a/arch/loongarch/mm/mmap.c
+++ b/arch/loongarch/mm/mmap.c
@@ -25,7 +25,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
struct vm_area_struct *vma;
unsigned long addr = addr0;
int do_color_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (unlikely(len > TASK_SIZE))
return -ENOMEM;
@@ -83,7 +83,6 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
*/
}
- info.flags = 0;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
return vm_unmapped_area(&info);
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 516dc7022bd7..f1aa1bf11166 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -68,7 +68,7 @@ config MIPS
select HAVE_DYNAMIC_FTRACE
select HAVE_EBPF_JIT if !CPU_MICROMIPS
select HAVE_EXIT_THREAD
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h
index 0e196650f4f4..92b7591aac2a 100644
--- a/arch/mips/include/asm/pgtable-32.h
+++ b/arch/mips/include/asm/pgtable-32.h
@@ -129,7 +129,7 @@ static inline int pmd_none(pmd_t pmd)
static inline int pmd_bad(pmd_t pmd)
{
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
- /* pmd_huge(pmd) but inline */
+ /* pmd_leaf(pmd) but inline */
if (unlikely(pmd_val(pmd) & _PAGE_HUGE))
return 0;
#endif
diff --git a/arch/mips/include/asm/pgtable-64.h b/arch/mips/include/asm/pgtable-64.h
index c0109aff223b..401c1d9e4409 100644
--- a/arch/mips/include/asm/pgtable-64.h
+++ b/arch/mips/include/asm/pgtable-64.h
@@ -245,7 +245,7 @@ static inline int pmd_none(pmd_t pmd)
static inline int pmd_bad(pmd_t pmd)
{
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
- /* pmd_huge(pmd) but inline */
+ /* pmd_leaf(pmd) but inline */
if (unlikely(pmd_val(pmd) & _PAGE_HUGE))
return 0;
#endif
diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c
index eabddb89d221..c97b089b9902 100644
--- a/arch/mips/jazz/jazzdma.c
+++ b/arch/mips/jazz/jazzdma.c
@@ -617,7 +617,7 @@ const struct dma_map_ops jazz_dma_ops = {
.sync_sg_for_device = jazz_dma_sync_sg_for_device,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
EXPORT_SYMBOL(jazz_dma_ops);
diff --git a/arch/mips/mm/hugetlbpage.c b/arch/mips/mm/hugetlbpage.c
index 7eaff5b07873..0b9e15555b59 100644
--- a/arch/mips/mm/hugetlbpage.c
+++ b/arch/mips/mm/hugetlbpage.c
@@ -57,13 +57,3 @@ pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr,
}
return (pte_t *) pmd;
}
-
-int pmd_huge(pmd_t pmd)
-{
- return (pmd_val(pmd) & _PAGE_HUGE) != 0;
-}
-
-int pud_huge(pud_t pud)
-{
- return (pud_val(pud) & _PAGE_HUGE) != 0;
-}
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 00fe90c6db3e..7e11d7b58761 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -34,7 +34,7 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
struct vm_area_struct *vma;
unsigned long addr = addr0;
int do_color_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (unlikely(len > TASK_SIZE))
return -ENOMEM;
@@ -92,7 +92,6 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
*/
}
- info.flags = 0;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
return vm_unmapped_area(&info);
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 4106084e57d7..76f3b9c0a9f0 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -326,7 +326,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
idx = read_c0_index();
#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
/* this could be a huge page */
- if (pmd_huge(*pmdp)) {
+ if (pmd_leaf(*pmdp)) {
unsigned long lo;
write_c0_pagemask(PM_HUGE_MASK);
ptep = (pte_t *)pmdp;
diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 98af719d5f85..f7722451276e 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -104,7 +104,9 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
struct vm_area_struct *vma, *prev;
unsigned long filp_pgoff;
int do_color_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {
+ .length = len
+ };
if (unlikely(len > TASK_SIZE))
return -ENOMEM;
@@ -139,7 +141,6 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
return addr;
}
- info.length = len;
info.align_mask = do_color_align ? (PAGE_MASK & (SHM_COLOUR - 1)) : 0;
info.align_offset = shared_align_offset(filp_pgoff, pgoff);
@@ -160,7 +161,6 @@ static unsigned long arch_get_unmapped_area_common(struct file *filp,
*/
}
- info.flags = 0;
info.low_limit = mm->mmap_base;
info.high_limit = mmap_upper_limit(NULL);
return vm_unmapped_area(&info);
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index a9f7e21f6656..0356199bd9e7 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -180,14 +180,3 @@ int huge_ptep_set_access_flags(struct vm_area_struct *vma,
}
return changed;
}
-
-
-int pmd_huge(pmd_t pmd)
-{
- return 0;
-}
-
-int pud_huge(pud_t pud)
-{
- return 0;
-}
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 70e118f140eb..56dcafbb83b3 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -237,7 +237,7 @@ config PPC
select HAVE_DYNAMIC_FTRACE_WITH_REGS if ARCH_USING_PATCHABLE_FUNCTION_ENTRY || MPROFILE_KERNEL || PPC32
select HAVE_EBPF_JIT
select HAVE_EFFICIENT_UNALIGNED_ACCESS
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_DESCRIPTORS if PPC64_ELF_ABI_V1
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
index 48f21820afe2..baf934578c3a 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
@@ -6,26 +6,6 @@
*/
#ifndef __ASSEMBLY__
#ifdef CONFIG_HUGETLB_PAGE
-static inline int pmd_huge(pmd_t pmd)
-{
- /*
- * leaf pte for huge page
- */
- if (radix_enabled())
- return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
- return 0;
-}
-
-static inline int pud_huge(pud_t pud)
-{
- /*
- * leaf pte for huge page
- */
- if (radix_enabled())
- return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
- return 0;
-}
-
/*
* With radix , we have hugepage ptes in the pud and pmd entries. We don't
* need to setup hugepage directory for them. Our pte and page directory format
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
index ced7ee8b42fc..6ac73da7b80e 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
@@ -4,31 +4,6 @@
#ifndef __ASSEMBLY__
#ifdef CONFIG_HUGETLB_PAGE
-/*
- * We have PGD_INDEX_SIZ = 12 and PTE_INDEX_SIZE = 8, so that we can have
- * 16GB hugepage pte in PGD and 16MB hugepage pte at PMD;
- *
- * Defined in such a way that we can optimize away code block at build time
- * if CONFIG_HUGETLB_PAGE=n.
- *
- * returns true for pmd migration entries, THP, devmap, hugetlb
- * But compile time dependent on CONFIG_HUGETLB_PAGE
- */
-static inline int pmd_huge(pmd_t pmd)
-{
- /*
- * leaf pte for huge page
- */
- return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
-}
-
-static inline int pud_huge(pud_t pud)
-{
- /*
- * leaf pte for huge page
- */
- return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
-}
/*
* With 64k page size, we have hugepage ptes in the pgd and pmd entries. We don't
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index fac5615e6bc5..8f9432e3855a 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -262,6 +262,18 @@ extern unsigned long __kernel_io_end;
extern struct page *vmemmap;
extern unsigned long pci_io_base;
+
+#define pmd_leaf pmd_leaf
+static inline bool pmd_leaf(pmd_t pmd)
+{
+ return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
+}
+
+#define pud_leaf pud_leaf
+static inline bool pud_leaf(pud_t pud)
+{
+ return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
+}
#endif /* __ASSEMBLY__ */
#include <asm/book3s/64/hash.h>
@@ -1426,20 +1438,5 @@ static inline bool is_pte_rw_upgrade(unsigned long old_val, unsigned long new_va
return false;
}
-/*
- * Like pmd_huge(), but works regardless of config options
- */
-#define pmd_leaf pmd_leaf
-static inline bool pmd_leaf(pmd_t pmd)
-{
- return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
-}
-
-#define pud_leaf pud_leaf
-static inline bool pud_leaf(pud_t pud)
-{
- return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
-}
-
#endif /* __ASSEMBLY__ */
#endif /* _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ */
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 24f830cf9bb4..8a27b046c6a2 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -406,9 +406,5 @@ extern void *abatron_pteptrs[2];
#include <asm/nohash/mmu.h>
#endif
-#if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
-#define __HAVE_ARCH_RESERVED_KERNEL_PAGES
-#endif
-
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_MMU_H_ */
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
index 427db14292c9..f5f39d4f03c8 100644
--- a/arch/powerpc/include/asm/nohash/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -351,16 +351,6 @@ static inline int hugepd_ok(hugepd_t hpd)
#endif
}
-static inline int pmd_huge(pmd_t pmd)
-{
- return 0;
-}
-
-static inline int pud_huge(pud_t pud)
-{
- return 0;
-}
-
#define is_hugepd(hpd) (hugepd_ok(hpd))
#endif
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 8920862ffd79..f0ae39e77e37 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -216,6 +216,6 @@ const struct dma_map_ops dma_iommu_ops = {
.get_required_mask = dma_iommu_get_required_mask,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 60f974775fc8..a612e7513a4f 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -1883,8 +1883,3 @@ static void __init fadump_reserve_crash_area(u64 base)
memblock_reserve(mstart, msize);
}
}
-
-unsigned long __init arch_reserved_kernel_pages(void)
-{
- return memblock_reserved_size() / PAGE_SIZE;
-}
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 29a8c8e18585..b70b4f93561f 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -26,6 +26,7 @@
#include <linux/iommu.h>
#include <linux/sched.h>
#include <linux/debugfs.h>
+#include <linux/vmalloc.h>
#include <asm/io.h>
#include <asm/iommu.h>
#include <asm/pci-bridge.h>
diff --git a/arch/powerpc/mm/book3s64/pgtable.c b/arch/powerpc/mm/book3s64/pgtable.c
index 83823db3488b..2975ea0841ba 100644
--- a/arch/powerpc/mm/book3s64/pgtable.c
+++ b/arch/powerpc/mm/book3s64/pgtable.c
@@ -170,6 +170,7 @@ pmd_t pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
{
unsigned long old_pmd;
+ VM_WARN_ON_ONCE(!pmd_present(*pmdp));
old_pmd = pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_PRESENT, _PAGE_INVALID);
flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
return __pmd(old_pmd);
diff --git a/arch/powerpc/mm/book3s64/slice.c b/arch/powerpc/mm/book3s64/slice.c
index c0b58afb9a47..ef3ce37f1bb3 100644
--- a/arch/powerpc/mm/book3s64/slice.c
+++ b/arch/powerpc/mm/book3s64/slice.c
@@ -282,12 +282,10 @@ static unsigned long slice_find_area_bottomup(struct mm_struct *mm,
{
int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
unsigned long found, next_end;
- struct vm_unmapped_area_info info;
-
- info.flags = 0;
- info.length = len;
- info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
- info.align_offset = 0;
+ struct vm_unmapped_area_info info = {
+ .length = len,
+ .align_mask = PAGE_MASK & ((1ul << pshift) - 1),
+ };
/*
* Check till the allow max value for this mmap request
*/
@@ -326,13 +324,13 @@ static unsigned long slice_find_area_topdown(struct mm_struct *mm,
{
int pshift = max_t(int, mmu_psize_defs[psize].shift, PAGE_SHIFT);
unsigned long found, prev;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {
+ .flags = VM_UNMAPPED_AREA_TOPDOWN,
+ .length = len,
+ .align_mask = PAGE_MASK & ((1ul << pshift) - 1),
+ };
unsigned long min_addr = max(PAGE_SIZE, mmap_min_addr);
- info.flags = VM_UNMAPPED_AREA_TOPDOWN;
- info.length = len;
- info.align_mask = PAGE_MASK & ((1ul << pshift) - 1);
- info.align_offset = 0;
/*
* If we are trying to allocate above DEFAULT_MAP_WINDOW
* Add the different to the mmap_base.
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 53335ae21a40..215690452495 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -71,23 +71,26 @@ static noinline int bad_area_nosemaphore(struct pt_regs *regs, unsigned long add
return __bad_area_nosemaphore(regs, address, SEGV_MAPERR);
}
-static int __bad_area(struct pt_regs *regs, unsigned long address, int si_code)
+static int __bad_area(struct pt_regs *regs, unsigned long address, int si_code,
+ struct mm_struct *mm, struct vm_area_struct *vma)
{
- struct mm_struct *mm = current->mm;
/*
* Something tried to access memory that isn't in our memory map..
* Fix it, but check if it's kernel or user first..
*/
- mmap_read_unlock(mm);
+ if (mm)
+ mmap_read_unlock(mm);
+ else
+ vma_end_read(vma);
return __bad_area_nosemaphore(regs, address, si_code);
}
static noinline int bad_access_pkey(struct pt_regs *regs, unsigned long address,
+ struct mm_struct *mm,
struct vm_area_struct *vma)
{
- struct mm_struct *mm = current->mm;
int pkey;
/*
@@ -109,7 +112,10 @@ static noinline int bad_access_pkey(struct pt_regs *regs, unsigned long address,
*/
pkey = vma_pkey(vma);
- mmap_read_unlock(mm);
+ if (mm)
+ mmap_read_unlock(mm);
+ else
+ vma_end_read(vma);
/*
* If we are in kernel mode, bail out with a SEGV, this will
@@ -124,9 +130,10 @@ static noinline int bad_access_pkey(struct pt_regs *regs, unsigned long address,
return 0;
}
-static noinline int bad_access(struct pt_regs *regs, unsigned long address)
+static noinline int bad_access(struct pt_regs *regs, unsigned long address,
+ struct mm_struct *mm, struct vm_area_struct *vma)
{
- return __bad_area(regs, address, SEGV_ACCERR);
+ return __bad_area(regs, address, SEGV_ACCERR, mm, vma);
}
static int do_sigbus(struct pt_regs *regs, unsigned long address,
@@ -479,13 +486,13 @@ static int ___do_page_fault(struct pt_regs *regs, unsigned long address,
if (unlikely(access_pkey_error(is_write, is_exec,
(error_code & DSISR_KEYFAULT), vma))) {
- vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ return bad_access_pkey(regs, address, NULL, vma);
}
if (unlikely(access_error(is_write, is_exec, vma))) {
- vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ return bad_access(regs, address, NULL, vma);
}
fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);
@@ -521,10 +528,10 @@ retry:
if (unlikely(access_pkey_error(is_write, is_exec,
(error_code & DSISR_KEYFAULT), vma)))
- return bad_access_pkey(regs, address, vma);
+ return bad_access_pkey(regs, address, mm, vma);
if (unlikely(access_error(is_write, is_exec, vma)))
- return bad_access(regs, address);
+ return bad_access(regs, address, mm, vma);
/*
* If for any reason at all we couldn't handle the fault,
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 22cc978cdb47..d325217ab201 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -17,6 +17,7 @@
#include <linux/suspend.h>
#include <linux/dma-direct.h>
#include <linux/execmem.h>
+#include <linux/vmalloc.h>
#include <asm/swiotlb.h>
#include <asm/machdep.h>
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 9b99113cb51a..6621cfc3baf8 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -102,7 +102,7 @@ struct page *p4d_page(p4d_t p4d)
{
if (p4d_leaf(p4d)) {
if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
- VM_WARN_ON(!p4d_huge(p4d));
+ VM_WARN_ON(!p4d_leaf(p4d));
return pte_page(p4d_pte(p4d));
}
return virt_to_page(p4d_pgtable(p4d));
@@ -113,7 +113,7 @@ struct page *pud_page(pud_t pud)
{
if (pud_leaf(pud)) {
if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
- VM_WARN_ON(!pud_huge(pud));
+ VM_WARN_ON(!pud_leaf(pud));
return pte_page(pud_pte(pud));
}
return virt_to_page(pud_pgtable(pud));
@@ -132,7 +132,7 @@ struct page *pmd_page(pmd_t pmd)
* enabled so these checks can't be used.
*/
if (!IS_ENABLED(CONFIG_HAVE_ARCH_HUGE_VMAP))
- VM_WARN_ON(!(pmd_leaf(pmd) || pmd_huge(pmd)));
+ VM_WARN_ON(!pmd_leaf(pmd));
return pte_page(pmd_pte(pmd));
}
return virt_to_page(pmd_page_vaddr(pmd));
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index d6b5f5ecd515..56dc6b29a3e7 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -695,7 +695,7 @@ static const struct dma_map_ops ps3_sb_dma_ops = {
.unmap_page = ps3_unmap_page,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
@@ -709,7 +709,7 @@ static const struct dma_map_ops ps3_ioc0_dma_ops = {
.unmap_page = ps3_unmap_page,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index b2babfdbc40b..36d1c7d4156b 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -611,7 +611,7 @@ static const struct dma_map_ops vio_dma_mapping_ops = {
.get_required_mask = dma_iommu_get_required_mask,
.mmap = dma_common_mmap,
.get_sgtable = dma_common_get_sgtable,
- .alloc_pages = dma_common_alloc_pages,
+ .alloc_pages_op = dma_common_alloc_pages,
.free_pages = dma_common_free_pages,
};
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 9e87287942dc..410d1d6e1b6c 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -132,7 +132,7 @@ config RISCV
select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER if !XIP_KERNEL && !PREEMPTION
select HAVE_EBPF_JIT if MMU
- select HAVE_FAST_GUP if MMU
+ select HAVE_GUP_FAST if MMU
select HAVE_FUNCTION_ARG_ACCESS_API
select HAVE_FUNCTION_ERROR_INJECTION
select HAVE_GCC_PLUGINS
diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h
index 22deb7a2a6ec..b1ce97a9dbfc 100644
--- a/arch/riscv/include/asm/hugetlb.h
+++ b/arch/riscv/include/asm/hugetlb.h
@@ -5,11 +5,11 @@
#include <asm/cacheflush.h>
#include <asm/page.h>
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
- clear_bit(PG_dcache_clean, &page->flags);
+ clear_bit(PG_dcache_clean, &folio->flags);
}
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
bool arch_hugetlb_migration_supported(struct hstate *h);
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 381137ce70d4..55a7c3ec246b 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -651,6 +651,7 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
#define __pud_to_phys(pud) (__page_val_to_pfn(pud_val(pud)) << PAGE_SHIFT)
+#define pud_pfn pud_pfn
static inline unsigned long pud_pfn(pud_t pud)
{
return ((__pud_to_phys(pud) & PUD_MASK) >> PAGE_SHIFT);
diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c
index 54260c16f991..11c0d2e0becf 100644
--- a/arch/riscv/kernel/elf_kexec.c
+++ b/arch/riscv/kernel/elf_kexec.c
@@ -19,6 +19,7 @@
#include <linux/libfdt.h>
#include <linux/types.h>
#include <linux/memblock.h>
+#include <linux/vmalloc.h>
#include <asm/setup.h>
int arch_kimage_file_post_load_cleanup(struct kimage *image)
diff --git a/arch/riscv/kernel/probes/kprobes.c b/arch/riscv/kernel/probes/kprobes.c
index e64f2f3064eb..dfb28e57d900 100644
--- a/arch/riscv/kernel/probes/kprobes.c
+++ b/arch/riscv/kernel/probes/kprobes.c
@@ -6,6 +6,7 @@
#include <linux/extable.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
+#include <linux/vmalloc.h>
#include <asm/ptrace.h>
#include <linux/uaccess.h>
#include <asm/sections.h>
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
index 3ba1d4dde5dd..5224f3733802 100644
--- a/arch/riscv/mm/fault.c
+++ b/arch/riscv/mm/fault.c
@@ -292,7 +292,10 @@ void handle_page_fault(struct pt_regs *regs)
if (unlikely(access_error(cause, vma))) {
vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ tsk->thread.bad_cause = cause;
+ bad_area_nosemaphore(regs, SEGV_ACCERR, addr);
+ return;
}
fault = handle_mm_fault(vma, addr, flags | FAULT_FLAG_VMA_LOCK, regs);
diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c
index 5ef2a6891158..0ebd968b33c9 100644
--- a/arch/riscv/mm/hugetlbpage.c
+++ b/arch/riscv/mm/hugetlbpage.c
@@ -399,16 +399,6 @@ static bool is_napot_size(unsigned long size)
#endif /*CONFIG_RISCV_ISA_SVNAPOT*/
-int pud_huge(pud_t pud)
-{
- return pud_leaf(pud);
-}
-
-int pmd_huge(pmd_t pmd)
-{
- return pmd_leaf(pmd);
-}
-
static bool __hugetlb_valid_size(unsigned long size)
{
if (size == HPAGE_SIZE)
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 7e7fe89c9b25..c59d2b54df49 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -177,7 +177,7 @@ config S390
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EBPF_JIT if HAVE_MARCH_Z196_FEATURES
select HAVE_EFFICIENT_UNALIGNED_ACCESS
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FENTRY
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_ARG_ACCESS_API
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index deb198a61039..ce5f4fe8be4d 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -39,11 +39,11 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
- clear_bit(PG_arch_1, &page->flags);
+ clear_bit(PG_arch_1, &folio->flags);
}
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
static inline void huge_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, unsigned long sz)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 6f11d063d545..ad55b5b99a75 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1421,6 +1421,7 @@ static inline unsigned long pud_deref(pud_t pud)
return (unsigned long)__va(pud_val(pud) & origin_mask);
}
+#define pud_pfn pud_pfn
static inline unsigned long pud_pfn(pud_t pud)
{
return __pa(pud_deref(pud)) >> PAGE_SHIFT;
@@ -1784,8 +1785,10 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
static inline pmd_t pmdp_invalidate(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp)
{
- pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);
+ pmd_t pmd;
+ VM_WARN_ON_ONCE(!pmd_present(*pmdp));
+ pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);
return pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd);
}
diff --git a/arch/s390/kernel/cert_store.c b/arch/s390/kernel/cert_store.c
index 554447768bdd..bf983513dd33 100644
--- a/arch/s390/kernel/cert_store.c
+++ b/arch/s390/kernel/cert_store.c
@@ -21,6 +21,7 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
+#include <linux/vmalloc.h>
#include <crypto/sha2.h>
#include <keys/user-type.h>
#include <asm/debug.h>
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 7dc54571f18e..f3609a0d453d 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -20,6 +20,7 @@
#include <linux/gfp.h>
#include <linux/crash_dump.h>
#include <linux/debug_locks.h>
+#include <linux/vmalloc.h>
#include <asm/asm-extable.h>
#include <asm/diag.h>
#include <asm/ipl.h>
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 0c66b32e0f9f..65747f15dbec 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -325,7 +325,8 @@ static void do_exception(struct pt_regs *regs, int access)
goto lock_mmap;
if (!(vma->vm_flags & access)) {
vma_end_read(vma);
- goto lock_mmap;
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ return handle_fault_error_nolock(regs, SEGV_ACCERR);
}
fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);
if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index dc3db86e13ff..2675aab4acc7 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -233,16 +233,6 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
return (pte_t *) pmdp;
}
-int pmd_huge(pmd_t pmd)
-{
- return pmd_leaf(pmd);
-}
-
-int pud_huge(pud_t pud)
-{
- return pud_leaf(pud);
-}
-
bool __init arch_hugetlb_valid_size(unsigned long size)
{
if (MACHINE_HAS_EDAT1 && size == PMD_SIZE)
@@ -258,14 +248,12 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
unsigned long pgoff, unsigned long flags)
{
struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
- info.flags = 0;
info.length = len;
info.low_limit = current->mm->mmap_base;
info.high_limit = TASK_SIZE;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
return vm_unmapped_area(&info);
}
@@ -274,7 +262,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
unsigned long pgoff, unsigned long flags)
{
struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
unsigned long addr;
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
@@ -282,7 +270,6 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
info.low_limit = PAGE_SIZE;
info.high_limit = current->mm->mmap_base;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
addr = vm_unmapped_area(&info);
/*
@@ -328,7 +315,7 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
goto check_asce_limit;
}
- if (mm->get_unmapped_area == arch_get_unmapped_area)
+ if (!test_bit(MMF_TOPDOWN, &mm->flags))
addr = hugetlb_get_unmapped_area_bottomup(file, addr, len,
pgoff, flags);
else
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index b14fc0887654..206756946589 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -86,7 +86,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (len > TASK_SIZE - mmap_min_addr)
return -ENOMEM;
@@ -102,7 +102,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
goto check_asce_limit;
}
- info.flags = 0;
info.length = len;
info.low_limit = mm->mmap_base;
info.high_limit = TASK_SIZE;
@@ -122,7 +121,7 @@ unsigned long arch_get_unmapped_area_topdown(struct file *filp, unsigned long ad
{
struct vm_area_struct *vma;
struct mm_struct *mm = current->mm;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/* requested length too big for entire address space */
if (len > TASK_SIZE - mmap_min_addr)
@@ -185,10 +184,10 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
*/
if (mmap_is_legacy(rlim_stack)) {
mm->mmap_base = mmap_base_legacy(random_factor);
- mm->get_unmapped_area = arch_get_unmapped_area;
+ clear_bit(MMF_TOPDOWN, &mm->flags);
} else {
mm->mmap_base = mmap_base(random_factor, rlim_stack);
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ set_bit(MMF_TOPDOWN, &mm->flags);
}
}
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index a90499c087f0..5398729bfe1b 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -169,7 +169,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_write, unsigned long, mmio_addr,
if (!(vma->vm_flags & VM_WRITE))
goto out_unlock_mmap;
- ret = follow_pte(vma->vm_mm, mmio_addr, &ptep, &ptl);
+ ret = follow_pte(vma, mmio_addr, &ptep, &ptl);
if (ret)
goto out_unlock_mmap;
@@ -308,7 +308,7 @@ SYSCALL_DEFINE3(s390_pci_mmio_read, unsigned long, mmio_addr,
if (!(vma->vm_flags & VM_WRITE))
goto out_unlock_mmap;
- ret = follow_pte(vma->vm_mm, mmio_addr, &ptep, &ptl);
+ ret = follow_pte(vma, mmio_addr, &ptep, &ptl);
if (ret)
goto out_unlock_mmap;
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 01cb1eb01277..5e6a3ead51fb 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -38,7 +38,7 @@ config SUPERH
select HAVE_DEBUG_BUGVERBOSE
select HAVE_DEBUG_KMEMLEAK
select HAVE_DYNAMIC_FTRACE
- select HAVE_FAST_GUP if MMU
+ select HAVE_GUP_FAST if MMU
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_FTRACE_MCOUNT_RECORD
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 4d3ba39e681c..75028bd568ba 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -27,11 +27,11 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
return *ptep;
}
-static inline void arch_clear_hugepage_flags(struct page *page)
+static inline void arch_clear_hugetlb_flags(struct folio *folio)
{
- clear_bit(PG_dcache_clean, &page->flags);
+ clear_bit(PG_dcache_clean, &folio->flags);
}
-#define arch_clear_hugepage_flags arch_clear_hugepage_flags
+#define arch_clear_hugetlb_flags arch_clear_hugetlb_flags
#include <asm-generic/hugetlb.h>
diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 195e739ee2be..46393b00137e 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -241,13 +241,14 @@ static void sh4_flush_cache_page(void *args)
if ((vma->vm_mm == current->active_mm))
vaddr = NULL;
else {
+ struct folio *folio = page_folio(page);
/*
* Use kmap_coherent or kmap_atomic to do flushes for
* another ASID than the current one.
*/
map_coherent = (current_cpu_data.dcache.n_aliases &&
- test_bit(PG_dcache_clean, &page->flags) &&
- page_mapcount(page));
+ test_bit(PG_dcache_clean, folio_flags(folio, 0)) &&
+ page_mapped(page));
if (map_coherent)
vaddr = kmap_coherent(page, address);
else
diff --git a/arch/sh/mm/cache.c b/arch/sh/mm/cache.c
index ceffd3ffc81e..6ebdeaff3021 100644
--- a/arch/sh/mm/cache.c
+++ b/arch/sh/mm/cache.c
@@ -84,7 +84,7 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
{
struct folio *folio = page_folio(page);
- if (boot_cpu_data.dcache.n_aliases && page_mapcount(page) &&
+ if (boot_cpu_data.dcache.n_aliases && folio_mapped(folio) &&
test_bit(PG_dcache_clean, &folio->flags)) {
void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
memcpy(dst, vfrom, len);
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c
index 6cb0ad73dbb9..ff209b55285a 100644
--- a/arch/sh/mm/hugetlbpage.c
+++ b/arch/sh/mm/hugetlbpage.c
@@ -70,13 +70,3 @@ pte_t *huge_pte_offset(struct mm_struct *mm,
return pte;
}
-
-int pmd_huge(pmd_t pmd)
-{
- return 0;
-}
-
-int pud_huge(pud_t pud)
-{
- return 0;
-}
diff --git a/arch/sh/mm/mmap.c b/arch/sh/mm/mmap.c
index b82199878b45..bee329d4149a 100644
--- a/arch/sh/mm/mmap.c
+++ b/arch/sh/mm/mmap.c
@@ -57,7 +57,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
int do_colour_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
@@ -88,7 +88,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
info.length = len;
info.low_limit = TASK_UNMAPPED_BASE;
info.high_limit = TASK_SIZE;
@@ -106,7 +105,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
struct mm_struct *mm = current->mm;
unsigned long addr = addr0;
int do_colour_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 4d1bafaba942..3fe429d73a65 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -875,6 +875,7 @@ static inline bool pud_leaf(pud_t pud)
return pte_val(pte) & _PAGE_PMD_HUGE;
}
+#define pud_pfn pud_pfn
static inline unsigned long pud_pfn(pud_t pud)
{
pte_t pte = __pte(pud_val(pud));
@@ -956,7 +957,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
#ifdef DCACHE_ALIASING_POSSIBLE
#define __HAVE_ARCH_MOVE_PTE
-#define move_pte(pte, prot, old_addr, new_addr) \
+#define move_pte(pte, old_addr, new_addr) \
({ \
pte_t newpte = (pte); \
if (tlb_type != hypervisor && pte_present(pte)) { \
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 082a551897ed..08a19727795c 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -41,7 +41,7 @@ SYSCALL_DEFINE0(getpagesize)
unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags)
{
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
@@ -59,7 +59,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
if (!addr)
addr = TASK_UNMAPPED_BASE;
- info.flags = 0;
info.length = len;
info.low_limit = addr;
info.high_limit = TASK_SIZE;
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 1e9a9e016237..d9c3b34ca744 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -93,7 +93,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
struct vm_area_struct * vma;
unsigned long task_size = TASK_SIZE;
int do_color_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (flags & MAP_FIXED) {
/* We do not accept a shared mapping if it would violate
@@ -126,7 +126,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
return addr;
}
- info.flags = 0;
info.length = len;
info.low_limit = TASK_UNMAPPED_BASE;
info.high_limit = min(task_size, VA_EXCLUDE_START);
@@ -154,7 +153,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
unsigned long task_size = STACK_TOP32;
unsigned long addr = addr0;
int do_color_align;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/* This should only ever run for 32-bit processes. */
BUG_ON(!test_thread_flag(TIF_32BIT));
@@ -218,14 +217,10 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags)
{
unsigned long align_goal, addr = -ENOMEM;
- unsigned long (*get_area)(struct file *, unsigned long,
- unsigned long, unsigned long, unsigned long);
-
- get_area = current->mm->get_unmapped_area;
if (flags & MAP_FIXED) {
/* Ok, don't mess with it. */
- return get_area(NULL, orig_addr, len, pgoff, flags);
+ return mm_get_unmapped_area(current->mm, NULL, orig_addr, len, pgoff, flags);
}
flags &= ~MAP_SHARED;
@@ -238,7 +233,8 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
align_goal = (64UL * 1024);
do {
- addr = get_area(NULL, orig_addr, len + (align_goal - PAGE_SIZE), pgoff, flags);
+ addr = mm_get_unmapped_area(current->mm, NULL, orig_addr,
+ len + (align_goal - PAGE_SIZE), pgoff, flags);
if (!(addr & ~PAGE_MASK)) {
addr = (addr + (align_goal - 1UL)) & ~(align_goal - 1UL);
break;
@@ -256,7 +252,7 @@ unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, u
* be obtained.
*/
if (addr & ~PAGE_MASK)
- addr = get_area(NULL, orig_addr, len, pgoff, flags);
+ addr = mm_get_unmapped_area(current->mm, NULL, orig_addr, len, pgoff, flags);
return addr;
}
@@ -292,7 +288,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
gap == RLIM_INFINITY ||
sysctl_legacy_va_layout) {
mm->mmap_base = TASK_UNMAPPED_BASE + random_factor;
- mm->get_unmapped_area = arch_get_unmapped_area;
+ clear_bit(MMF_TOPDOWN, &mm->flags);
} else {
/* We know it's 32-bit */
unsigned long task_size = STACK_TOP32;
@@ -303,7 +299,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
gap = (task_size / 6 * 5);
mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor);
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ set_bit(MMF_TOPDOWN, &mm->flags);
}
}
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index b432500c13a5..cc91ca7a1e18 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -31,17 +31,15 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
{
struct hstate *h = hstate_file(filp);
unsigned long task_size = TASK_SIZE;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
if (test_thread_flag(TIF_32BIT))
task_size = STACK_TOP32;
- info.flags = 0;
info.length = len;
info.low_limit = TASK_UNMAPPED_BASE;
info.high_limit = min(task_size, VA_EXCLUDE_START);
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
addr = vm_unmapped_area(&info);
if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) {
@@ -63,7 +61,7 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
struct hstate *h = hstate_file(filp);
struct mm_struct *mm = current->mm;
unsigned long addr = addr0;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/* This should only ever run for 32-bit processes. */
BUG_ON(!test_thread_flag(TIF_32BIT));
@@ -73,7 +71,6 @@ hugetlb_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
info.low_limit = PAGE_SIZE;
info.high_limit = mm->mmap_base;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
addr = vm_unmapped_area(&info);
/*
@@ -123,7 +120,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
(!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
- if (mm->get_unmapped_area == arch_get_unmapped_area)
+ if (!test_bit(MMF_TOPDOWN, &mm->flags))
return hugetlb_get_unmapped_area_bottomup(file, addr, len,
pgoff, flags);
else
@@ -407,18 +404,6 @@ pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
return entry;
}
-int pmd_huge(pmd_t pmd)
-{
- return !pmd_none(pmd) &&
- (pmd_val(pmd) & (_PAGE_VALID|_PAGE_PMD_HUGE)) != _PAGE_VALID;
-}
-
-int pud_huge(pud_t pud)
-{
- return !pud_none(pud) &&
- (pud_val(pud) & (_PAGE_VALID|_PAGE_PUD_HUGE)) != _PAGE_VALID;
-}
-
static void hugetlb_free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
unsigned long addr)
{
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index b44d79d778c7..8648a50afe88 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -183,12 +183,12 @@ static void __set_pmd_acct(struct mm_struct *mm, unsigned long addr,
* hugetlb_pte_count.
*/
if (pmd_val(pmd) & _PAGE_PMD_HUGE) {
- if (is_huge_zero_page(pmd_page(pmd)))
+ if (is_huge_zero_pmd(pmd))
mm->context.hugetlb_pte_count++;
else
mm->context.thp_pte_count++;
} else {
- if (is_huge_zero_page(pmd_page(orig)))
+ if (is_huge_zero_pmd(orig))
mm->context.hugetlb_pte_count--;
else
mm->context.thp_pte_count--;
@@ -249,6 +249,7 @@ pmd_t pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
{
pmd_t old, entry;
+ VM_WARN_ON_ONCE(!pmd_present(*pmdp));
entry = __pmd(pmd_val(*pmdp) & ~_PAGE_VALID);
old = pmdp_establish(vma, address, pmdp, entry);
flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
@@ -259,7 +260,7 @@ pmd_t pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
* Sanity check pmd before doing the actual decrement.
*/
if ((pmd_val(entry) & _PAGE_PMD_HUGE) &&
- !is_huge_zero_page(pmd_page(entry)))
+ !is_huge_zero_pmd(entry))
(vma->vm_mm)->context.thp_pte_count--;
return old;
diff --git a/arch/um/include/shared/um_malloc.h b/arch/um/include/shared/um_malloc.h
index 13da93284c2c..bf503658f08e 100644
--- a/arch/um/include/shared/um_malloc.h
+++ b/arch/um/include/shared/um_malloc.h
@@ -11,7 +11,8 @@
extern void *uml_kmalloc(int size, int flags);
extern void kfree(const void *ptr);
-extern void *vmalloc(unsigned long size);
+extern void *vmalloc_noprof(unsigned long size);
+#define vmalloc(...) vmalloc_noprof(__VA_ARGS__)
extern void vfree(void *ptr);
#endif /* __UM_MALLOC_H__ */
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bc47bc9841ff..671bc6fd557c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -224,7 +224,7 @@ config X86
select HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_EISA
select HAVE_EXIT_THREAD
- select HAVE_FAST_GUP
+ select HAVE_GUP_FAST
select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 4b99ed326b17..1d60427379c9 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -42,6 +42,7 @@
#include <asm/early_ioremap.h>
#include <asm/pgtable_types.h>
#include <asm/shared/io.h>
+#include <asm/special_insns.h>
#define build_mmio_read(name, size, type, reg, barrier) \
static inline type name(const volatile void __iomem *addr) \
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 315535ffb258..65b8e5bb902c 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -234,6 +234,7 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
return (pfn & pmd_pfn_mask(pmd)) >> PAGE_SHIFT;
}
+#define pud_pfn pud_pfn
static inline unsigned long pud_pfn(pud_t pud)
{
phys_addr_t pfn = pud_val(pud);
@@ -387,23 +388,7 @@ static inline pte_t pte_wrprotect(pte_t pte)
#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP
static inline int pte_uffd_wp(pte_t pte)
{
- bool wp = pte_flags(pte) & _PAGE_UFFD_WP;
-
-#ifdef CONFIG_DEBUG_VM
- /*
- * Having write bit for wr-protect-marked present ptes is fatal,
- * because it means the uffd-wp bit will be ignored and write will
- * just go through.
- *
- * Use any chance of pgtable walking to verify this (e.g., when
- * page swapped out or being migrated for all purposes). It means
- * something is already wrong. Tell the admin even before the
- * process crashes. We also nail it with wrong pgtable setup.
- */
- WARN_ON_ONCE(wp && pte_write(pte));
-#endif
-
- return wp;
+ return pte_flags(pte) & _PAGE_UFFD_WP;
}
static inline pte_t pte_mkuffd_wp(pte_t pte)
@@ -1200,7 +1185,6 @@ static inline int pgd_none(pgd_t pgd)
extern int direct_gbpages;
void init_mem_mapping(void);
void early_alloc_pgt_buf(void);
-extern void memblock_find_dma_reserve(void);
void __init poking_init(void);
unsigned long init_memory_mapping(unsigned long start,
unsigned long end, pgprot_t prot);
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 7e9db77231ac..3c4407271d08 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -245,6 +245,7 @@ extern void cleanup_highmap(void);
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
+#define HAVE_ARCH_UNMAPPED_AREA_VMFLAGS
#define PAGE_AGP PAGE_KERNEL_NOCACHE
#define HAVE_PAGE_AGP 1
diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index 2ae98f754e59..c884deca839b 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -676,7 +676,7 @@ static const struct dma_map_ops gart_dma_ops = {
.get_sgtable = dma_common_get_sgtable,
.dma_supported = dma_direct_supported,
.get_required_mask = dma_direct_get_required_mask,
- .alloc_pages = dma_direct_alloc_pages,
+ .alloc_pages_op = dma_direct_alloc_pages,
.free_pages = dma_direct_free_pages,
};
diff --git a/arch/x86/kernel/cpu/sgx/driver.c b/arch/x86/kernel/cpu/sgx/driver.c
index 262f5fb18d74..22b65a5f5ec6 100644
--- a/arch/x86/kernel/cpu/sgx/driver.c
+++ b/arch/x86/kernel/cpu/sgx/driver.c
@@ -113,7 +113,7 @@ static unsigned long sgx_get_unmapped_area(struct file *file,
if (flags & MAP_FIXED)
return addr;
- return current->mm->get_unmapped_area(file, addr, len, pgoff, flags);
+ return mm_get_unmapped_area(current->mm, file, addr, len, pgoff, flags);
}
#ifdef CONFIG_COMPAT
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index 166692f2d501..27892e57c4ef 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -13,6 +13,7 @@
#include <linux/sched/signal.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
+#include <linux/vmalloc.h>
#include <asm/sgx.h>
#include "driver.h"
#include "encl.h"
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index fe0c859873d1..ade0043ce56e 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -18,6 +18,7 @@
#include <linux/uaccess.h>
#include <linux/smp.h>
#include <linux/sched/task_stack.h>
+#include <linux/vmalloc.h>
#include <asm/cpu_entry_area.h>
#include <asm/softirq_stack.h>
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 55a1fc332e20..05c5aa951da7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1108,8 +1108,6 @@ void __init setup_arch(char **cmdline_p)
*/
arch_reserve_crashkernel();
- memblock_find_dma_reserve();
-
if (!early_xdbc_setup_hardware())
early_xdbc_register_console();
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index cb9fa1d5c66f..01d7cd85ef97 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -112,13 +112,21 @@ static void find_start_end(unsigned long addr, unsigned long flags,
*end = task_size_64bit(addr > DEFAULT_MAP_WINDOW);
}
+static inline unsigned long stack_guard_placement(vm_flags_t vm_flags)
+{
+ if (vm_flags & VM_SHADOW_STACK)
+ return PAGE_SIZE;
+
+ return 0;
+}
+
unsigned long
-arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
+arch_get_unmapped_area_vmflags(struct file *filp, unsigned long addr, unsigned long len,
+ unsigned long pgoff, unsigned long flags, vm_flags_t vm_flags)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
unsigned long begin, end;
if (flags & MAP_FIXED)
@@ -137,12 +145,11 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
return addr;
}
- info.flags = 0;
info.length = len;
info.low_limit = begin;
info.high_limit = end;
- info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
+ info.start_gap = stack_guard_placement(vm_flags);
if (filp) {
info.align_mask = get_align_mask();
info.align_offset += get_align_bits();
@@ -151,14 +158,14 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
}
unsigned long
-arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
- const unsigned long len, const unsigned long pgoff,
- const unsigned long flags)
+arch_get_unmapped_area_topdown_vmflags(struct file *filp, unsigned long addr0,
+ unsigned long len, unsigned long pgoff,
+ unsigned long flags, vm_flags_t vm_flags)
{
struct vm_area_struct *vma;
struct mm_struct *mm = current->mm;
unsigned long addr = addr0;
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
/* requested length too big for entire address space */
if (len > TASK_SIZE)
@@ -192,6 +199,7 @@ get_unmapped_area:
info.low_limit = PAGE_SIZE;
info.high_limit = get_mmap_base(0);
+ info.start_gap = stack_guard_placement(vm_flags);
/*
* If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area
@@ -203,7 +211,6 @@ get_unmapped_area:
if (addr > DEFAULT_MAP_WINDOW && !in_32bit_syscall())
info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW;
- info.align_mask = 0;
info.align_offset = pgoff << PAGE_SHIFT;
if (filp) {
info.align_mask = get_align_mask();
@@ -223,3 +230,18 @@ bottomup:
*/
return arch_get_unmapped_area(filp, addr0, len, pgoff, flags);
}
+
+unsigned long
+arch_get_unmapped_area(struct file *filp, unsigned long addr,
+ unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+ return arch_get_unmapped_area_vmflags(filp, addr, len, pgoff, flags, 0);
+}
+
+unsigned long
+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr,
+ const unsigned long len, const unsigned long pgoff,
+ const unsigned long flags)
+{
+ return arch_get_unmapped_area_topdown_vmflags(filp, addr, len, pgoff, flags, 0);
+}
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index f26ecabc9424..e6c469b323cc 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -20,6 +20,7 @@
#include <linux/efi.h> /* efi_crash_gracefully_on_page_fault()*/
#include <linux/mm_types.h>
#include <linux/mm.h> /* find_and_lock_vma() */
+#include <linux/vmalloc.h>
#include <asm/cpufeature.h> /* boot_cpu_has, ... */
#include <asm/traps.h> /* dotraplinkage, ... */
@@ -835,14 +836,17 @@ bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
static void
__bad_area(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, u32 pkey, int si_code)
+ unsigned long address, struct mm_struct *mm,
+ struct vm_area_struct *vma, u32 pkey, int si_code)
{
- struct mm_struct *mm = current->mm;
/*
* Something tried to access memory that isn't in our memory map..
* Fix it, but check if it's kernel or user first..
*/
- mmap_read_unlock(mm);
+ if (mm)
+ mmap_read_unlock(mm);
+ else
+ vma_end_read(vma);
__bad_area_nosemaphore(regs, error_code, address, pkey, si_code);
}
@@ -866,7 +870,8 @@ static inline bool bad_area_access_from_pkeys(unsigned long error_code,
static noinline void
bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
- unsigned long address, struct vm_area_struct *vma)
+ unsigned long address, struct mm_struct *mm,
+ struct vm_area_struct *vma)
{
/*
* This OSPKE check is not strictly necessary at runtime.
@@ -896,9 +901,9 @@ bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
*/
u32 pkey = vma_pkey(vma);
- __bad_area(regs, error_code, address, pkey, SEGV_PKUERR);
+ __bad_area(regs, error_code, address, mm, vma, pkey, SEGV_PKUERR);
} else {
- __bad_area(regs, error_code, address, 0, SEGV_ACCERR);
+ __bad_area(regs, error_code, address, mm, vma, 0, SEGV_ACCERR);
}
}
@@ -1326,8 +1331,9 @@ void do_user_addr_fault(struct pt_regs *regs,
goto lock_mmap;
if (unlikely(access_error(error_code, vma))) {
- vma_end_read(vma);
- goto lock_mmap;
+ bad_area_access_error(regs, error_code, address, NULL, vma);
+ count_vm_vma_lock_event(VMA_LOCK_SUCCESS);
+ return;
}
fault = handle_mm_fault(vma, address, flags | FAULT_FLAG_VMA_LOCK, regs);
if (!(fault & (VM_FAULT_RETRY | VM_FAULT_COMPLETED)))
@@ -1363,7 +1369,7 @@ retry:
* we can handle it..
*/
if (unlikely(access_error(error_code, vma))) {
- bad_area_access_error(regs, error_code, address, vma);
+ bad_area_access_error(regs, error_code, address, mm, vma);
return;
}
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 5804bbae4f01..807a5859a3c4 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -19,41 +19,14 @@
#include <asm/tlbflush.h>
#include <asm/elf.h>
-/*
- * pmd_huge() returns 1 if @pmd is hugetlb related entry, that is normal
- * hugetlb entry or non-present (migration or hwpoisoned) hugetlb entry.
- * Otherwise, returns 0.
- */
-int pmd_huge(pmd_t pmd)
-{
- return !pmd_none(pmd) &&
- (pmd_val(pmd) & (_PAGE_PRESENT|_PAGE_PSE)) != _PAGE_PRESENT;
-}
-
-/*
- * pud_huge() returns 1 if @pud is hugetlb related entry, that is normal
- * hugetlb entry or non-present (migration or hwpoisoned) hugetlb entry.
- * Otherwise, returns 0.
- */
-int pud_huge(pud_t pud)
-{
-#if CONFIG_PGTABLE_LEVELS > 2
- return !pud_none(pud) &&
- (pud_val(pud) & (_PAGE_PRESENT|_PAGE_PSE)) != _PAGE_PRESENT;
-#else
- return 0;
-#endif
-}
-
#ifdef CONFIG_HUGETLB_PAGE
static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
unsigned long addr, unsigned long len,
unsigned long pgoff, unsigned long flags)
{
struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
- info.flags = 0;
info.length = len;
info.low_limit = get_mmap_base(1);
@@ -65,7 +38,6 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file,
task_size_32bit() : task_size_64bit(addr > DEFAULT_MAP_WINDOW);
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
return vm_unmapped_area(&info);
}
@@ -74,7 +46,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
unsigned long pgoff, unsigned long flags)
{
struct hstate *h = hstate_file(file);
- struct vm_unmapped_area_info info;
+ struct vm_unmapped_area_info info = {};
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
@@ -89,7 +61,6 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file,
info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW;
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
- info.align_offset = 0;
addr = vm_unmapped_area(&info);
/*
@@ -141,7 +112,7 @@ hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
}
get_unmapped_area:
- if (mm->get_unmapped_area == arch_get_unmapped_area)
+ if (!test_bit(MMF_TOPDOWN, &mm->flags))
return hugetlb_get_unmapped_area_bottomup(file, addr, len,
pgoff, flags);
else
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index a51f22c90a7a..eb503f53c319 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -987,53 +987,6 @@ void __init free_initrd_mem(unsigned long start, unsigned long end)
}
#endif
-/*
- * Calculate the precise size of the DMA zone (first 16 MB of RAM),
- * and pass it to the MM layer - to help it set zone watermarks more
- * accurately.
- *
- * Done on 64-bit systems only for the time being, although 32-bit systems
- * might benefit from this as well.
- */
-void __init memblock_find_dma_reserve(void)
-{
-#ifdef CONFIG_X86_64
- u64 nr_pages = 0, nr_free_pages = 0;
- unsigned long start_pfn, end_pfn;
- phys_addr_t start_addr, end_addr;
- int i;
- u64 u;
-
- /*
- * Iterate over all memory ranges (free and reserved ones alike),
- * to calculate the total number of pages in the first 16 MB of RAM:
- */
- nr_pages = 0;
- for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, NULL) {
- start_pfn = min(start_pfn, MAX_DMA_PFN);
- end_pfn = min(end_pfn, MAX_DMA_PFN);
-
- nr_pages += end_pfn - start_pfn;
- }
-
- /*
- * Iterate over free memory ranges to calculate the number of free
- * pages in the DMA zone, while not counting potential partial
- * pages at the beginning or the end of the range:
- */
- nr_free_pages = 0;
- for_each_free_mem_range(u, NUMA_NO_NODE, MEMBLOCK_NONE, &start_addr, &end_addr, NULL) {
- start_pfn = min_t(unsigned long, PFN_UP(start_addr), MAX_DMA_PFN);
- end_pfn = min_t(unsigned long, PFN_DOWN(end_addr), MAX_DMA_PFN);
-
- if (start_pfn < end_pfn)
- nr_free_pages += end_pfn - start_pfn;
- }
-
- set_dma_reserve(nr_pages - nr_free_pages);
-#endif
-}
-
void __init zone_sizes_init(void)
{
unsigned long max_zone_pfns[MAX_NR_ZONES];
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index c90c20904a60..a2cabb1c81e1 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -129,9 +129,9 @@ static void arch_pick_mmap_base(unsigned long *base, unsigned long *legacy_base,
void arch_pick_mmap_layout(struct mm_struct *mm, struct rlimit *rlim_stack)
{
if (mmap_is_legacy())
- mm->get_unmapped_area = arch_get_unmapped_area;
+ clear_bit(MMF_TOPDOWN, &mm->flags);
else
- mm->get_unmapped_area = arch_get_unmapped_area_topdown;
+ set_bit(MMF_TOPDOWN, &mm->flags);
arch_pick_mmap_base(&mm->mmap_base, &mm->mmap_legacy_base,
arch_rnd(mmap64_rnd_bits), task_size_64bit(0),
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
index 025fd7ea5d69..65fda406e6f2 100644
--- a/arch/x86/mm/numa_32.c
+++ b/arch/x86/mm/numa_32.c
@@ -24,6 +24,7 @@
#include <linux/memblock.h>
#include <linux/init.h>
+#include <linux/vmalloc.h>
#include <asm/pgtable_areas.h>
#include "numa_internal.h"
diff --git a/arch/x86/mm/pat/memtype.c b/arch/x86/mm/pat/memtype.c
index 36b603d0cdde..bdc2a240c2aa 100644
--- a/arch/x86/mm/pat/memtype.c
+++ b/arch/x86/mm/pat/memtype.c
@@ -39,6 +39,7 @@
#include <linux/pfn_t.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/highmem.h>
#include <linux/fs.h>
#include <linux/rbtree.h>
@@ -947,6 +948,29 @@ static void free_pfn_range(u64 paddr, unsigned long size)
memtype_free(paddr, paddr + size);
}
+static int follow_phys(struct vm_area_struct *vma, unsigned long *prot,
+ resource_size_t *phys)
+{
+ pte_t *ptep, pte;
+ spinlock_t *ptl;
+
+ if (follow_pte(vma, vma->vm_start, &ptep, &ptl))
+ return -EINVAL;
+
+ pte = ptep_get(ptep);
+
+ /* Never return PFNs of anon folios in COW mappings. */
+ if (vm_normal_folio(vma, vma->vm_start, pte)) {
+ pte_unmap_unlock(ptep, ptl);
+ return -EINVAL;
+ }
+
+ *prot = pgprot_val(pte_pgprot(pte));
+ *phys = (resource_size_t)pte_pfn(pte) << PAGE_SHIFT;
+ pte_unmap_unlock(ptep, ptl);
+ return 0;
+}
+
static int get_pat_info(struct vm_area_struct *vma, resource_size_t *paddr,
pgprot_t *pgprot)
{
@@ -964,7 +988,7 @@ static int get_pat_info(struct vm_area_struct *vma, resource_size_t *paddr,
* detect the PFN. If we need the cachemode as well, we're out of luck
* for now and have to fail fork().
*/
- if (!follow_phys(vma, vma->vm_start, 0, &prot, paddr)) {
+ if (!follow_phys(vma, &prot, paddr)) {
if (pgprot)
*pgprot = __pgprot(prot);
return 0;
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index d007591b8059..93e54ba91fbf 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -631,6 +631,8 @@ int pmdp_clear_flush_young(struct vm_area_struct *vma,
pmd_t pmdp_invalidate_ad(struct vm_area_struct *vma, unsigned long address,
pmd_t *pmdp)
{
+ VM_WARN_ON_ONCE(!pmd_present(*pmdp));
+
/*
* No flush is necessary. Once an invalid PTE is established, the PTE's
* access and dirty bits cannot be updated.
@@ -731,7 +733,7 @@ int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot)
return 0;
/* Bail out if we are we on a populated non-leaf entry: */
- if (pud_present(*pud) && !pud_huge(*pud))
+ if (pud_present(*pud) && !pud_leaf(*pud))
return 0;
set_pte((pte_t *)pud, pfn_pte(
@@ -760,7 +762,7 @@ int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot)
}
/* Bail out if we are we on a populated non-leaf entry: */
- if (pmd_present(*pmd) && !pmd_huge(*pmd))
+ if (pmd_present(*pmd) && !pmd_leaf(*pmd))
return 0;
set_pte((pte_t *)pmd, pfn_pte(
diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c
index 7ec66a79f472..23be0e7516ce 100644
--- a/arch/xtensa/mm/cache.c
+++ b/arch/xtensa/mm/cache.c
@@ -87,12 +87,13 @@ static inline void *coherent_kvaddr(struct page *page, unsigned long base,
void clear_user_highpage(struct page *page, unsigned long vaddr)
{
+ struct folio *folio = page_folio(page);
unsigned long paddr;
void *kvaddr = coherent_kvaddr(page, TLBTEMP_BASE_1, vaddr, &paddr);
preempt_disable();
kmap_invalidate_coherent(page, vaddr);
- set_bit(PG_arch_1, &page->flags);
+ set_bit(PG_arch_1, folio_flags(folio, 0));
clear_page_alias(kvaddr, paddr);
preempt_enable();
}
@@ -101,6 +102,7 @@ EXPORT_SYMBOL(clear_user_highpage);
void copy_user_highpage(struct page *dst, struct page *src,
unsigned long vaddr, struct vm_area_struct *vma)
{
+ struct folio *folio = page_folio(dst);
unsigned long dst_paddr, src_paddr;
void *dst_vaddr = coherent_kvaddr(dst, TLBTEMP_BASE_1, vaddr,
&dst_paddr);
@@ -109,7 +111,7 @@ void copy_user_highpage(struct page *dst, struct page *src,
preempt_disable();
kmap_invalidate_coherent(dst, vaddr);
- set_bit(PG_arch_1, &dst->flags);
+ set_bit(PG_arch_1, folio_flags(folio, 0));
copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);
preempt_enable();
}
diff --git a/arch/xtensa/mm/tlb.c b/arch/xtensa/mm/tlb.c
index 4f974b74883c..d8b60d6e50a8 100644
--- a/arch/xtensa/mm/tlb.c
+++ b/arch/xtensa/mm/tlb.c
@@ -256,12 +256,13 @@ static int check_tlb_entry(unsigned w, unsigned e, bool dtlb)
dtlb ? 'D' : 'I', w, e, r0, r1, pte);
if (pte == 0 || !pte_present(__pte(pte))) {
struct page *p = pfn_to_page(r1 >> PAGE_SHIFT);
- pr_err("page refcount: %d, mapcount: %d\n",
- page_count(p),
- page_mapcount(p));
- if (!page_count(p))
+ struct folio *f = page_folio(p);
+
+ pr_err("folio refcount: %d, mapcount: %d\n",
+ folio_ref_count(f), folio_mapcount(f));
+ if (!folio_ref_count(f))
rc |= TLB_INSANE;
- else if (page_mapcount(p))
+ else if (folio_mapped(f))
rc |= TLB_SUSPICIOUS;
} else {
rc |= TLB_INSANE;