diff options
| author | Vegard Nossum <vegard.nossum@oracle.com> | 2017-02-08 10:44:12 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2017-02-17 16:03:17 +1100 |
| commit | e00ee3cbcba4a864e87108cd1a6f44b3eb3e5021 (patch) | |
| tree | cbc7ccc35471e07fa6a680cdebc7fcfb7c81e6e1 /drivers | |
| parent | d4ae028a920c3b938b80da163595337bdd710cb9 (diff) | |
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 <vegard.nossum@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_userptr.c | 2 | ||||
| -rw-r--r-- | drivers/iommu/intel-svm.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index 65802d93fdc1..0115989e324a 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 cb72e0011310..51f2b228723f 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); |