linux-kernel - [PATCH 1/3] mm/sparse: Clean up the obsolete code comment

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Message-Id: <20190320073540.12866-1-bhe@redhat.com>
Date:   Wed, 20 Mar 2019 15:35:38 +0800
From:   Baoquan He <bhe@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     akpm@...ux-foundation.org, pasha.tatashin@...cle.com,
        mhocko@...e.com, rppt@...ux.vnet.ibm.com,
        richard.weiyang@...il.com, linux-mm@...ck.org,
        Baoquan He <bhe@...hat.com>
Subject: [PATCH 1/3] mm/sparse: Clean up the obsolete code comment

The code comment above sparse_add_one_section() is obsolete and
incorrect, clean it up and write new one.

Signed-off-by: Baoquan He <bhe@...hat.com>
---
 mm/sparse.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 77a0554fa5bd..0a0f82c5d969 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -674,9 +674,12 @@ static void free_map_bootmem(struct page *memmap)
 #endif /* CONFIG_SPARSEMEM_VMEMMAP */
 
 /*
- * returns the number of sections whose mem_maps were properly
- * set.  If this is <=0, then that means that the passed-in
- * map was not consumed and must be freed.
+ * sparse_add_one_section - add a memory section
+ * @nid:	The node to add section on
+ * @start_pfn:	start pfn of the memory range
+ * @altmap:	device page map
+ *
+ * Return 0 on success and an appropriate error code otherwise.
  */
 int __meminit sparse_add_one_section(int nid, unsigned long start_pfn,
 				     struct vmem_altmap *altmap)
-- 
2.17.2