linux-kernel - [PATCH 3/3] nilfs2: get rid of nilfs_mapping

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Date:   Mon, 21 Mar 2022 21:57:07 +0900
From:   Ryusuke Konishi <konishi.ryusuke@...il.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-nilfs <linux-nilfs@...r.kernel.org>,
        Matthew Wilcox <willy@...radead.org>,
        David Hildenbrand <david@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: [PATCH 3/3] nilfs2: get rid of nilfs_mapping_init()

After applying the lockdep warning fixes, nilfs_mapping_init() is no
longer used, so delete it.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@...il.com>
---
 fs/nilfs2/page.c | 9 ---------
 fs/nilfs2/page.h | 1 -
 2 files changed, 10 deletions(-)

diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c
index 45e079295008..a8e88cc38e16 100644
--- a/fs/nilfs2/page.c
+++ b/fs/nilfs2/page.c
@@ -436,15 +436,6 @@ unsigned int nilfs_page_count_clean_buffers(struct page *page,
 	return nc;
 }
 
-void nilfs_mapping_init(struct address_space *mapping, struct inode *inode)
-{
-	mapping->host = inode;
-	mapping->flags = 0;
-	mapping_set_gfp_mask(mapping, GFP_NOFS);
-	mapping->private_data = NULL;
-	mapping->a_ops = &empty_aops;
-}
-
 /*
  * NILFS2 needs clear_page_dirty() in the following two cases:
  *
diff --git a/fs/nilfs2/page.h b/fs/nilfs2/page.h
index 569263b23c0c..21ddcdd4d63e 100644
--- a/fs/nilfs2/page.h
+++ b/fs/nilfs2/page.h
@@ -43,7 +43,6 @@ struct buffer_head *nilfs_grab_buffer(struct inode *, struct address_space *,
 void nilfs_copy_back_pages(struct address_space *, struct address_space *);
 void nilfs_clear_dirty_page(struct page *, bool);
 void nilfs_clear_dirty_pages(struct address_space *, bool);
-void nilfs_mapping_init(struct address_space *mapping, struct inode *inode);
 unsigned int nilfs_page_count_clean_buffers(struct page *, unsigned int,
 					    unsigned int);
 unsigned long nilfs_find_uncommitted_extent(struct inode *inode,
-- 
1.8.3.1