linux-kernel - [PATCH 2/3] khugepaged: remove unnecessary out label in collapse_huge

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Date:   Thu, 25 Mar 2021 09:56:46 -0400
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        <linmiaohe@...wei.com>
Subject: [PATCH 2/3] 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.

Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
 mm/khugepaged.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index ad0444f3f487..58466af69e70 100644
--- 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 @@ static void collapse_huge_page(struct mm_struct *mm,
 		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,
-- 
2.19.1