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authorLinus Torvalds <torvalds@linux-foundation.org>2023-10-01 23:33:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-10-01 23:33:25 +0300
commitd2c5231581d636af8d5af888ee13048dfbb438c7 (patch)
treeaf72c0b739cf135481d457ed2da4b22b3790ee16 /include/linux
parent8f633369413f189d81069a5048c7d67c815f59a7 (diff)
parente2a8f20dd8e9df695f736e51cd9115ae55be92d1 (diff)
downloadlinux-d2c5231581d636af8d5af888ee13048dfbb438c7.tar.xz
Merge tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton: "Fourteen hotfixes, eleven of which are cc:stable. The remainder pertain to issues which were introduced after 6.5" * tag 'mm-hotfixes-stable-2023-10-01-08-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: Crash: add lock to serialize crash hotplug handling selftests/mm: fix awk usage in charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh that may cause error mm: mempolicy: keep VMA walk if both MPOL_MF_STRICT and MPOL_MF_MOVE are specified mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions() mm, memcg: reconsider kmem.limit_in_bytes deprecation mm: zswap: fix potential memory corruption on duplicate store arm64: hugetlb: fix set_huge_pte_at() to work with all swap entries mm: hugetlb: add huge page size param to set_huge_pte_at() maple_tree: add MAS_UNDERFLOW and MAS_OVERFLOW states maple_tree: add mas_is_active() to detect in-tree walks nilfs2: fix potential use after free in nilfs_gccache_submit_read_data() mm: abstract moving to the next PFN mm: report success more often from filemap_map_folio_range() fs: binfmt_elf_efpic: fix personality for ELF-FDPIC
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/hugetlb.h6
-rw-r--r--include/linux/maple_tree.h11
-rw-r--r--include/linux/pgtable.h10
3 files changed, 24 insertions, 3 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 5b2626063f4f..a30686e649f7 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -984,7 +984,9 @@ static inline void huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t old_pte, pte_t pte)
{
- set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
+ unsigned long psize = huge_page_size(hstate_vma(vma));
+
+ set_huge_pte_at(vma->vm_mm, addr, ptep, pte, psize);
}
#endif
@@ -1173,7 +1175,7 @@ static inline pte_t huge_ptep_clear_flush(struct vm_area_struct *vma,
}
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
+ pte_t *ptep, pte_t pte, unsigned long sz)
{
}
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index e41c70ac7744..d01e850b570f 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -428,6 +428,8 @@ struct ma_wr_state {
#define MAS_ROOT ((struct maple_enode *)5UL)
#define MAS_NONE ((struct maple_enode *)9UL)
#define MAS_PAUSE ((struct maple_enode *)17UL)
+#define MAS_OVERFLOW ((struct maple_enode *)33UL)
+#define MAS_UNDERFLOW ((struct maple_enode *)65UL)
#define MA_ERROR(err) \
((struct maple_enode *)(((unsigned long)err << 2) | 2UL))
@@ -511,6 +513,15 @@ static inline bool mas_is_paused(const struct ma_state *mas)
return mas->node == MAS_PAUSE;
}
+/* Check if the mas is pointing to a node or not */
+static inline bool mas_is_active(struct ma_state *mas)
+{
+ if ((unsigned long)mas->node >= MAPLE_RESERVED_RANGE)
+ return true;
+
+ return false;
+}
+
/**
* mas_reset() - Reset a Maple Tree operation state.
* @mas: Maple Tree operation state.
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 1fba072b3dac..af7639c3b0a3 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -206,6 +206,14 @@ static inline int pmd_young(pmd_t pmd)
#endif
#ifndef set_ptes
+
+#ifndef pte_next_pfn
+static inline pte_t pte_next_pfn(pte_t pte)
+{
+ return __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT));
+}
+#endif
+
/**
* set_ptes - Map consecutive pages to a contiguous range of addresses.
* @mm: Address space to map the pages into.
@@ -231,7 +239,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
if (--nr == 0)
break;
ptep++;
- pte = __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT));
+ pte = pte_next_pfn(pte);
}
arch_leave_lazy_mmu_mode();
}