linux-kernel - linux-next: build failure after merge of the akpm tree

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Date:   Mon, 20 Mar 2017 16:37:35 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Jaegeuk Kim <jaegeuk@...nel.org>
Cc:     linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
        Michal Hocko <mhocko@...e.com>, Chao Yu <yuchao0@...wei.com>
Subject: linux-next: build failure after merge of the akpm tree

Hi Andrew,

After merging the akpm tree, today's linux-next build (x86_64
allmodconfig) failed like this:

fs/f2fs/node.c: In function 'init_free_nid_cache':
fs/f2fs/node.c:2634:25: error: implicit declaration of function 'f2fs_kvzalloc' [-Werror=implicit-function-declaration]
  nm_i->free_nid_count = f2fs_kvzalloc(nm_i->nat_blocks *
                         ^
fs/f2fs/node.c:2634:23: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
  nm_i->free_nid_count = f2fs_kvzalloc(nm_i->nat_blocks *
                       ^

Caused by commit

  69e5e80117a3 ("mm: introduce kv[mz]alloc helpers")

interacting with commit

  c48b15867a2f ("f2fs: skip scanning free nid bitmap of full NAT blocks")

from the f2fs tree.

I applied the following fix patch:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 20 Mar 2017 16:28:21 +1100
Subject: [PATCH] mm: introduce kv[mz]alloc helpers - f2fs fix up

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 fs/f2fs/node.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index cdbb05745895..0ea1dca8a0e2 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2631,7 +2631,7 @@ static int init_free_nid_cache(struct f2fs_sb_info *sbi)
 	if (!nm_i->nat_block_bitmap)
 		return -ENOMEM;
 
-	nm_i->free_nid_count = f2fs_kvzalloc(nm_i->nat_blocks *
+	nm_i->free_nid_count = kvzalloc(nm_i->nat_blocks *
 					sizeof(unsigned short), GFP_KERNEL);
 	if (!nm_i->free_nid_count)
 		return -ENOMEM;
-- 
2.11.0

-- 
Cheers,
Stephen Rothwell