linux-kernel - [PATCH -next] mm/huge_memory.c: remove unused variable 'count'

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Message-ID: <20210514065912.71734-1-pulehui@huawei.com>
Date:   Fri, 14 May 2021 14:59:12 +0800
From:   Pu Lehui <pulehui@...wei.com>
To:     <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <pulehui@...wei.com>
Subject: [PATCH -next] mm/huge_memory.c: remove unused variable 'count'

mm/huge_memory.c:2663:6: warning:
 variable ‘count’ set but not used [-Wunused-but-set-variable]
  2663 |  int count, mapcount, extra_pins, ret;
       |      ^~~~~

This variable is not used in function , this commit
remove it to fix the warning.

Signed-off-by: Pu Lehui <pulehui@...wei.com>
---
 mm/huge_memory.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 52ca04b905cf..a23a127302e9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2660,7 +2660,7 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
 	struct deferred_split *ds_queue = get_deferred_split_queue(head);
 	struct anon_vma *anon_vma = NULL;
 	struct address_space *mapping = NULL;
-	int count, mapcount, extra_pins, ret;
+	int mapcount, extra_pins, ret;
 	pgoff_t end;
 
 	VM_BUG_ON_PAGE(is_huge_zero_page(head), head);
@@ -2737,7 +2737,6 @@ int split_huge_page_to_list(struct page *page, struct list_head *list)
 
 	/* Prevent deferred_split_scan() touching ->_refcount */
 	spin_lock(&ds_queue->split_queue_lock);
-	count = page_count(head);
 	mapcount = total_mapcount(head);
 	if (!mapcount && page_ref_freeze(head, 1 + extra_pins)) {
 		if (!list_empty(page_deferred_list(head))) {
-- 
2.17.1