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FXNfW/dygbG2axYazOXPoJcqAHcVHjuHkmTGHd+eXAxHwiXIrgOhgZOnkIQUq0zkbXN7OnGLN8sTfCttmsxdmnM5SsYvgygZuePrKPqtQ8uxwUo05rUQebEhZ1iCeu3WV3V6rDBnoI4OSQ9AdZXKBIM2Gbw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: "Liam R. Howlett" Use the vma iterator so that the iterator can be invalidated or updated to avoid each caller doing so. Signed-off-by: Liam R. Howlett --- fs/proc/task_mmu.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index e35a0398db63..2bae7c80d502 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -892,7 +892,7 @@ static int show_smaps_rollup(struct seq_file *m, void *v) struct vm_area_struct *vma; unsigned long vma_start = 0, last_vma_end = 0; int ret = 0; - MA_STATE(mas, &mm->mm_mt, 0, 0); + VMA_ITERATOR(vmi, mm, 0); priv->task = get_proc_task(priv->inode); if (!priv->task) @@ -910,7 +910,7 @@ static int show_smaps_rollup(struct seq_file *m, void *v) goto out_put_mm; hold_task_mempolicy(priv); - vma = mas_find(&mas, ULONG_MAX); + vma = vma_next(&vmi); if (unlikely(!vma)) goto empty_set; @@ -925,7 +925,7 @@ static int show_smaps_rollup(struct seq_file *m, void *v) * access it for write request. */ if (mmap_lock_is_contended(mm)) { - mas_pause(&mas); + vma_iter_set(&vmi, vma->vm_end); mmap_read_unlock(mm); ret = mmap_read_lock_killable(mm); if (ret) { @@ -969,7 +969,7 @@ static int show_smaps_rollup(struct seq_file *m, void *v) * contains last_vma_end. * Iterate VMA' from last_vma_end. */ - vma = mas_find(&mas, ULONG_MAX); + vma = vma_next(&vmi); /* Case 3 above */ if (!vma) break; @@ -983,7 +983,7 @@ static int show_smaps_rollup(struct seq_file *m, void *v) smap_gather_stats(vma, &mss, last_vma_end); } /* Case 2 above */ - } while ((vma = mas_find(&mas, ULONG_MAX)) != NULL); + } for_each_vma(vmi, vma); empty_set: show_vma_header_prefix(m, vma_start, last_vma_end, 0, 0, 0, 0); @@ -1279,7 +1279,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf, return -ESRCH; mm = get_task_mm(task); if (mm) { - MA_STATE(mas, &mm->mm_mt, 0, 0); + VMA_ITERATOR(vmi, mm, 0); struct mmu_notifier_range range; struct clear_refs_private cp = { .type = type, @@ -1299,7 +1299,7 @@ static ssize_t clear_refs_write(struct file *file, const char __user *buf, } if (type == CLEAR_REFS_SOFT_DIRTY) { - mas_for_each(&mas, vma, ULONG_MAX) { + for_each_vma(vmi, vma) { if (!(vma->vm_flags & VM_SOFTDIRTY)) continue; vma->vm_flags &= ~VM_SOFTDIRTY;