linux-kernel - [PATCH 08/10] fs: move the buffer_heads_over_limit stub to buffer

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Message-Id: <20200620071644.463185-9-hch@lst.de>
Date:   Sat, 20 Jun 2020 09:16:42 +0200
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, linux-block@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 08/10] fs: move the buffer_heads_over_limit stub to buffer_head.h

Move the !CONFIG_BLOCK stub to the same place as the non-stub
declaration.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 include/linux/blkdev.h      | 1 -
 include/linux/buffer_head.h | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 50fccb121b876e..973253ce202d87 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1840,7 +1840,6 @@ struct block_device;
 /*
  * stubs for when the block layer is configured out
  */
-#define buffer_heads_over_limit 0
 
 static inline long nr_blockdev_pages(void)
 {
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 22fb11e2d2e04d..6b47f94378c5ad 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -406,6 +406,7 @@ static inline int inode_has_buffers(struct inode *inode) { return 0; }
 static inline void invalidate_inode_buffers(struct inode *inode) {}
 static inline int remove_inode_buffers(struct inode *inode) { return 1; }
 static inline int sync_mapping_buffers(struct address_space *mapping) { return 0; }
+#define buffer_heads_over_limit 0
 
 #endif /* CONFIG_BLOCK */
 #endif /* _LINUX_BUFFER_HEAD_H */
-- 
2.26.2