[PATCH 06/22] orangefs: set up and use backing_dev_info

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From: Martin Brandenburg <martin@xxxxxxxxxxxx>

Signed-off-by: Martin Brandenburg <martin@xxxxxxxxxxxx>
Signed-off-by: Mike Marshall <hubcap@xxxxxxxxxxxx>
---
 fs/orangefs/super.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index 31db6ac73de1..ef3388c90ff7 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -407,15 +407,11 @@ static int orangefs_fill_sb(struct super_block *sb,
 		struct orangefs_fs_mount_response *fs_mount,
 		void *data, int silent)
 {
-	int ret = -EINVAL;
-	struct inode *root = NULL;
-	struct dentry *root_dentry = NULL;
+	int ret;
+	struct inode *root;
+	struct dentry *root_dentry;
 	struct orangefs_object_kref root_object;
 
-	/* alloc and init our private orangefs sb info */
-	sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
-	if (!ORANGEFS_SB(sb))
-		return -ENOMEM;
 	ORANGEFS_SB(sb)->sb = sb;
 
 	ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
@@ -438,6 +434,10 @@ static int orangefs_fill_sb(struct super_block *sb,
 	sb->s_blocksize_bits = PAGE_SHIFT;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
 
+	ret = super_setup_bdi(sb);
+	if (ret)
+		return ret;
+
 	root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
 	root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
 	gossip_debug(GOSSIP_SUPER_DEBUG,
@@ -516,6 +516,13 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
 		goto free_op;
 	}
 
+	/* alloc and init our private orangefs sb info */
+	sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
+	if (!ORANGEFS_SB(sb)) {
+		d = ERR_PTR(-ENOMEM);
+		goto free_op;
+	}
+
 	ret = orangefs_fill_sb(sb,
 	      &new_op->downcall.resp.fs_mount, data,
 	      flags & SB_SILENT ? 1 : 0);
-- 
2.20.1




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