[RFC][PATCH 34/42] anon_inode_getfile(): switch to alloc_file_pseudo()

[Al Viro]

From: Al Viro <v...@zeniv.linux.org.uk>

Signed-off-by: Al Viro <v...@zeniv.linux.org.uk>
---
 fs/anon_inodes.c | 29 ++++++-----------------------
 1 file changed, 6 insertions(+), 23 deletions(-)

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 3168ee4e77f4..7e13edd23db1 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -71,8 +71,6 @@ struct file *anon_inode_getfile(const char *name,
                                const struct file_operations *fops,
                                void *priv, int flags)
 {
-       struct qstr this;
-       struct path path;
        struct file *file;
 
        if (IS_ERR(anon_inode_inode))
@@ -82,29 +80,15 @@ struct file *anon_inode_getfile(const char *name,
                return ERR_PTR(-ENOENT);
 
        /*
-        * Link the inode to a directory entry by creating a unique name
-        * using the inode sequence number.
-        */
-       file = ERR_PTR(-ENOMEM);
-       this.name = name;
-       this.len = strlen(name);
-       this.hash = 0;
-       path.dentry = d_alloc_pseudo(anon_inode_mnt->mnt_sb, &this);
-       if (!path.dentry)
-               goto err_module;
-
-       path.mnt = mntget(anon_inode_mnt);
-       /*
         * We know the anon_inode inode count is always greater than zero,
         * so ihold() is safe.
         */
        ihold(anon_inode_inode);
-
-       d_instantiate(path.dentry, anon_inode_inode);
-
-       file = alloc_file(&path, OPEN_FMODE(flags), fops);
+       file = alloc_file_pseudo(anon_inode_inode, anon_inode_mnt, name,
+                                OPEN_FMODE(flags), fops);
        if (IS_ERR(file))
-               goto err_dput;
+               goto err;
+
        file->f_mapping = anon_inode_inode->i_mapping;
 
        file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
@@ -112,9 +96,8 @@ struct file *anon_inode_getfile(const char *name,
 
        return file;
 
-err_dput:
-       path_put(&path);
-err_module:
+err:
+       iput(anon_inode_inode);
        module_put(fops->owner);
        return file;
 }
-- 
2.11.0