diff options
Diffstat (limited to 'mm/mmap.c')
| -rw-r--r-- | mm/mmap.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index e1586b2f938e..cdbeff089049 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -594,6 +594,7 @@ again: } if (vp->insert && vp->file) uprobe_mmap(vp->insert); + validate_mm(mm); } /* @@ -676,7 +677,6 @@ int vma_expand(struct vma_iterator *vmi, struct vm_area_struct *vma, vma_iter_store(vmi, vma); vma_complete(&vp, vmi, vma->vm_mm); - validate_mm(vma->vm_mm); return 0; nomem: @@ -716,7 +716,6 @@ int vma_shrink(struct vma_iterator *vmi, struct vm_area_struct *vma, vma->vm_end = end; vma->vm_pgoff = pgoff; vma_complete(&vp, vmi, vma->vm_mm); - validate_mm(vma->vm_mm); return 0; } @@ -889,7 +888,6 @@ struct vm_area_struct *vma_merge(struct vma_iterator *vmi, struct mm_struct *mm, pgoff_t pglen = (end - addr) >> PAGE_SHIFT; long adj_start = 0; - validate_mm(mm); /* * We later require that vma->vm_flags == vm_flags, * so this tests vma->vm_flags & VM_SPECIAL, too. @@ -1016,10 +1014,7 @@ struct vm_area_struct *vma_merge(struct vma_iterator *vmi, struct mm_struct *mm, } vma_complete(&vp, vmi, mm); - vma_iter_free(vmi); - validate_mm(mm); khugepaged_enter_vma(res, vm_flags); - return res; } @@ -1194,7 +1189,6 @@ unsigned long do_mmap(struct file *file, unsigned long addr, vm_flags_t vm_flags; int pkey = 0; - validate_mm(mm); *populate = 0; if (!len) @@ -2023,6 +2017,7 @@ static int expand_upwards(struct vm_area_struct *vma, unsigned long address) anon_vma_unlock_write(vma->anon_vma); khugepaged_enter_vma(vma, vma->vm_flags); mas_destroy(&mas); + validate_mm(mm); return error; } #endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */ @@ -2113,6 +2108,7 @@ int expand_downwards(struct vm_area_struct *vma, unsigned long address) anon_vma_unlock_write(vma->anon_vma); khugepaged_enter_vma(vma, vma->vm_flags); mas_destroy(&mas); + validate_mm(mm); return error; } @@ -2290,7 +2286,6 @@ static inline void remove_mt(struct mm_struct *mm, struct ma_state *mas) remove_vma(vma, false); } vm_unacct_memory(nr_accounted); - validate_mm(mm); } /* @@ -2327,8 +2322,6 @@ int __split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, struct vm_area_struct *new; int err; - validate_mm(vma->vm_mm); - WARN_ON(vma->vm_start >= addr); WARN_ON(vma->vm_end <= addr); @@ -2385,7 +2378,6 @@ int __split_vma(struct vma_iterator *vmi, struct vm_area_struct *vma, /* Success. */ if (new_below) vma_next(vmi); - validate_mm(vma->vm_mm); return 0; out_free_mpol: @@ -2394,7 +2386,6 @@ out_free_vmi: vma_iter_free(vmi); out_free_vma: vm_area_free(new); - validate_mm(vma->vm_mm); return err; } @@ -3045,7 +3036,6 @@ static int do_brk_flags(struct vma_iterator *vmi, struct vm_area_struct *vma, struct mm_struct *mm = current->mm; struct vma_prepare vp; - validate_mm(mm); /* * Check against address space limits by the changed size * Note: This happens *after* clearing old mappings in some code paths. @@ -3097,6 +3087,7 @@ static int do_brk_flags(struct vma_iterator *vmi, struct vm_area_struct *vma, goto mas_store_fail; mm->map_count++; + validate_mm(mm); ksm_add_vma(vma); out: perf_event_mmap(vma); @@ -3105,7 +3096,6 @@ out: if (flags & VM_LOCKED) mm->locked_vm += (len >> PAGE_SHIFT); vm_flags_set(vma, VM_SOFTDIRTY); - validate_mm(mm); return 0; mas_store_fail: @@ -3286,7 +3276,6 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, bool faulted_in_anon_vma = true; VMA_ITERATOR(vmi, mm, addr); - validate_mm(mm); /* * If anonymous vma has not yet been faulted, update new pgoff * to match new location, to increase its chance of merging. @@ -3345,7 +3334,6 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, goto out_vma_link; *need_rmap_locks = false; } - validate_mm(mm); return new_vma; out_vma_link: @@ -3361,7 +3349,6 @@ out_free_mempol: out_free_vma: vm_area_free(new_vma); out: - validate_mm(mm); return NULL; } @@ -3498,7 +3485,6 @@ static struct vm_area_struct *__install_special_mapping( int ret; struct vm_area_struct *vma; - validate_mm(mm); vma = vm_area_alloc(mm); if (unlikely(vma == NULL)) return ERR_PTR(-ENOMEM); @@ -3521,12 +3507,10 @@ static struct vm_area_struct *__install_special_mapping( perf_event_mmap(vma); - validate_mm(mm); return vma; out: vm_area_free(vma); - validate_mm(mm); return ERR_PTR(ret); } |