diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-02-26 11:52:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-02-26 11:52:14 -0800 |
| commit | 086ee11b0384c5ee837a46fac36e38189717960b (patch) | |
| tree | d7a308beceb310fee6aa07249c310dc2450e2bbe /mm/hugetlb.c | |
| parent | 2c8c230edab57eae6d2e8df7239ef121a45a1443 (diff) | |
| parent | fda153c89af344d21df281009a9d046cf587ea0f (diff) | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"12 patches.
Subsystems affected by this patch series: MAINTAINERS, mailmap, memfd,
and mm (hugetlb, kasan, hugetlbfs, pagemap, selftests, memcg, and
slab)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
selftests/memfd: clean up mapping in mfd_fail_write
mailmap: update Roman Gushchin's email
MAINTAINERS, SLAB: add Roman as reviewer, git tree
MAINTAINERS: add Shakeel as a memcg co-maintainer
MAINTAINERS: remove Vladimir from memcg maintainers
MAINTAINERS: add Roman as a memcg co-maintainer
selftest/vm: fix map_fixed_noreplace test failure
mm: fix use-after-free bug when mm->mmap is reused after being freed
hugetlbfs: fix a truncation issue in hugepages parameter
kasan: test: prevent cache merging in kmem_cache_double_destroy
mm/hugetlb: fix kernel crash with hugetlb mremap
MAINTAINERS: add sysctl-next git tree
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 61895cc01d09..f294db835f4b 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4159,10 +4159,10 @@ static int __init hugepages_setup(char *s) pr_warn("HugeTLB: architecture can't support node specific alloc, ignoring!\n"); return 0; } + if (tmp >= nr_online_nodes) + goto invalid; node = tmp; p += count + 1; - if (node < 0 || node >= nr_online_nodes) - goto invalid; /* Parse hugepages */ if (sscanf(p, "%lu%n", &tmp, &count) != 1) goto invalid; @@ -4851,14 +4851,13 @@ again: } static void move_huge_pte(struct vm_area_struct *vma, unsigned long old_addr, - unsigned long new_addr, pte_t *src_pte) + unsigned long new_addr, pte_t *src_pte, pte_t *dst_pte) { struct hstate *h = hstate_vma(vma); struct mm_struct *mm = vma->vm_mm; - pte_t *dst_pte, pte; spinlock_t *src_ptl, *dst_ptl; + pte_t pte; - dst_pte = huge_pte_offset(mm, new_addr, huge_page_size(h)); dst_ptl = huge_pte_lock(h, mm, dst_pte); src_ptl = huge_pte_lockptr(h, mm, src_pte); @@ -4917,7 +4916,7 @@ int move_hugetlb_page_tables(struct vm_area_struct *vma, if (!dst_pte) break; - move_huge_pte(vma, old_addr, new_addr, src_pte); + move_huge_pte(vma, old_addr, new_addr, src_pte, dst_pte); } flush_tlb_range(vma, old_end - len, old_end); mmu_notifier_invalidate_range_end(&range); |