From 388f79345502232d335467e8fa6f8e55a18844e1 Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Mon, 27 Feb 2017 14:30:13 -0800 Subject: mm: use mmget_not_zero() helper We already have the helper, we can convert the rest of the kernel mechanically using: git grep -l 'atomic_inc_not_zero.*mm_users' | xargs sed -i 's/atomic_inc_not_zero(&\(.*\)->mm_users)/mmget_not_zero\(\1\)/' This is needed for a later patch that hooks into the helper, but might be a worthwhile cleanup on its own. Link: http://lkml.kernel.org/r/20161218123229.22952-3-vegard.nossum@oracle.com Signed-off-by: Vegard Nossum Acked-by: Michal Hocko Acked-by: Peter Zijlstra (Intel) Acked-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpu/drm/i915/i915_gem_userptr.c | 2 +- drivers/iommu/intel-svm.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index 65802d9..0115989 100644 --- a/drivers/gpu/drm/i915/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/i915_gem_userptr.c @@ -507,7 +507,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work) flags |= FOLL_WRITE; ret = -EFAULT; - if (atomic_inc_not_zero(&mm->mm_users)) { + if (mmget_not_zero(mm)) { down_read(&mm->mmap_sem); while (pinned < npages) { ret = get_user_pages_remote diff --git a/drivers/iommu/intel-svm.c b/drivers/iommu/intel-svm.c index cb72e00..51f2b22 100644 --- a/drivers/iommu/intel-svm.c +++ b/drivers/iommu/intel-svm.c @@ -579,7 +579,7 @@ static irqreturn_t prq_event_thread(int irq, void *d) if (!svm->mm) goto bad_req; /* If the mm is already defunct, don't handle faults. */ - if (!atomic_inc_not_zero(&svm->mm->mm_users)) + if (!mmget_not_zero(svm->mm)) goto bad_req; down_read(&svm->mm->mmap_sem); vma = find_extend_vma(svm->mm, address); -- cgit v1.1