[PATCH 1/2] rpc_pipe: export simple_dentry_operations and have rpc_pipefs use it

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...instead of replicating a copy of them.

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/libfs.c            |  9 +++++----
 include/linux/fs.h    |  1 +
 net/sunrpc/rpc_pipe.c | 11 +----------
 3 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/fs/libfs.c b/fs/libfs.c
index 916da8c..69793f7 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -49,16 +49,16 @@ static int simple_delete_dentry(const struct dentry *dentry)
 	return 1;
 }
 
+const struct dentry_operations simple_dentry_operations = {
+	.d_delete = simple_delete_dentry,
+};
+
 /*
  * Lookup the data. This is trivial - if the dentry didn't already
  * exist, we know it is negative.  Set d_op to delete negative dentries.
  */
 struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
 {
-	static const struct dentry_operations simple_dentry_operations = {
-		.d_delete = simple_delete_dentry,
-	};
-
 	if (dentry->d_name.len > NAME_MAX)
 		return ERR_PTR(-ENAMETOOLONG);
 	d_set_d_op(dentry, &simple_dentry_operations);
@@ -987,6 +987,7 @@ EXPORT_SYMBOL(simple_write_begin);
 EXPORT_SYMBOL(simple_write_end);
 EXPORT_SYMBOL(simple_dir_inode_operations);
 EXPORT_SYMBOL(simple_dir_operations);
+EXPORT_SYMBOL(simple_dentry_operations);
 EXPORT_SYMBOL(simple_empty);
 EXPORT_SYMBOL(simple_fill_super);
 EXPORT_SYMBOL(simple_getattr);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 65c2be2..1d21364 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2546,6 +2546,7 @@ extern int simple_write_end(struct file *file, struct address_space *mapping,
 extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
 extern const struct file_operations simple_dir_operations;
+extern const struct dentry_operations simple_dentry_operations;
 extern const struct inode_operations simple_dir_inode_operations;
 struct tree_descr { char *name; const struct file_operations *ops; int mode; };
 struct dentry *d_alloc_name(struct dentry *, const char *);
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index a816b3a..99cd7db 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -471,15 +471,6 @@ struct rpc_filelist {
 	umode_t mode;
 };
 
-static int rpc_delete_dentry(const struct dentry *dentry)
-{
-	return 1;
-}
-
-static const struct dentry_operations rpc_dentry_operations = {
-	.d_delete = rpc_delete_dentry,
-};
-
 static struct inode *
 rpc_get_inode(struct super_block *sb, umode_t mode)
 {
@@ -668,7 +659,7 @@ static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
 	}
 	if (dentry->d_inode == NULL) {
 		if (!dentry->d_op)
-			d_set_d_op(dentry, &rpc_dentry_operations);
+			d_set_d_op(dentry, &simple_dentry_operations);
 		return dentry;
 	}
 	dput(dentry);
-- 
1.8.1.4

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