linux-kernel - [PATCH v2 5/8] nfsd: use seq_open_data() in exports_net

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Date:   Sat, 18 Aug 2018 15:24:31 +0200
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     linux-nfs@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: [PATCH v2 5/8] nfsd: use seq_open_data() in exports_net_open()

Using the seq_open_data() helper, exports_net_open() essentially becomes
a oneliner.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
Depends on 1/8 introducing seq_open_data.

fs/nfsd/nfsctl.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index d107b4426f7e..483a849b9ce1 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -135,17 +135,9 @@ static const struct file_operations transaction_ops = {
 
 static int exports_net_open(struct net *net, struct file *file)
 {
-	int err;
-	struct seq_file *seq;
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
 
-	err = seq_open(file, &nfs_exports_op);
-	if (err)
-		return err;
-
-	seq = file->private_data;
-	seq->private = nn->svc_export_cache;
-	return 0;
+	return seq_open_data(file, &nfs_exports_op, nn->svc_export_cache);
 }
 
 static int exports_proc_open(struct inode *inode, struct file *file)
-- 
2.16.4