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Message-Id: <1466200004-6196-1-git-send-email-ying.huang@intel.com>
Date: Fri, 17 Jun 2016 14:46:36 -0700
From: "Huang, Ying" <ying.huang@...el.com>
To: "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>
Cc: Huang Ying <ying.huang@...el.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Vlastimil Babka <vbabka@...e.cz>,
Jerome Marchand <jmarchan@...hat.com>,
Andrea Arcangeli <aarcange@...hat.com>,
Ebru Akagunduz <ebru.akagunduz@...il.com>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] THP: Fix comments of __pmd_trans_huge_lock
From: Huang Ying <ying.huang@...el.com>
To make the comments consistent with the already changed code.
Signed-off-by: "Huang, Ying" <ying.huang@...el.com>
---
mm/huge_memory.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2ad52d5..641ca27 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1824,10 +1824,10 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
}
/*
- * Returns true if a given pmd maps a thp, false otherwise.
+ * Returns page table lock pointer if a given pmd maps a thp, NULL otherwise.
*
- * Note that if it returns true, this routine returns without unlocking page
- * table lock. So callers must unlock it.
+ * Note that if it returns page table lock pointer, this routine returns without
+ * unlocking page table lock. So callers must unlock it.
*/
spinlock_t *__pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
{
--
2.8.1
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