Messages in this thread Patch in this message | | | From | Christoph Hellwig <> | Subject | [PATCH 3/3] pagewalk: use lockdep_assert_held for locking validation | Date | Thu, 8 Aug 2019 18:42:40 +0300 |
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Use lockdep to check for held locks instead of using home grown asserts.
Signed-off-by: Christoph Hellwig <hch@lst.de> --- mm/pagewalk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/pagewalk.c b/mm/pagewalk.c index 28510fc0dde1..9ec1885ceed7 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -319,7 +319,7 @@ int walk_page_range(struct mm_struct *mm, unsigned long start, if (!walk.mm) return -EINVAL; - VM_BUG_ON_MM(!rwsem_is_locked(&walk.mm->mmap_sem), walk.mm); + lockdep_assert_held(&walk.mm->mmap_sem); vma = find_vma(walk.mm, start); do { @@ -369,7 +369,7 @@ int walk_page_vma(struct vm_area_struct *vma, const struct mm_walk_ops *ops, if (!walk.mm) return -EINVAL; - VM_BUG_ON(!rwsem_is_locked(&vma->vm_mm->mmap_sem)); + lockdep_assert_held(&walk.mm->mmap_sem); err = walk_page_test(vma->vm_start, vma->vm_end, &walk); if (err > 0) -- 2.20.1
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