khugepaged: remove unnecessary out label in collapse_huge_page()

The out label here is unneeded because it just goes to out_up_write label.
Remove it to make code more concise.

Link: https://lkml.kernel.org/r/20210325135647.64106-3-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index beaf061..276ac00 100644 (file)
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1128,10 +1128,10 @@ static void collapse_huge_page(struct mm_struct *mm,
        mmap_write_lock(mm);
        result = hugepage_vma_revalidate(mm, address, &vma);
        if (result)
-               goto out;
+               goto out_up_write;
        /* check if the pmd is still valid */
        if (mm_find_pmd(mm, address) != pmd)
-               goto out;
+               goto out_up_write;
 
        anon_vma_lock_write(vma->anon_vma);
 
@@ -1171,7 +1171,7 @@ static void collapse_huge_page(struct mm_struct *mm,
                spin_unlock(pmd_ptl);
                anon_vma_unlock_write(vma->anon_vma);
                result = SCAN_FAIL;
-               goto out;
+               goto out_up_write;
        }
 
        /*
@@ -1215,8 +1215,6 @@ out_nolock:
                mem_cgroup_uncharge(*hpage);
        trace_mm_collapse_huge_page(mm, isolated, result);
        return;
-out:
-       goto out_up_write;
 }
 
 static int khugepaged_scan_pmd(struct mm_struct *mm,