1 files changed, 20 insertions, 35 deletions

diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index b29a2b878f46..3841fb1ca5a2 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -89,7 +89,7 @@ __uml_setup("hostfs=", hostfs_args,
 );
 #endif
 
-static char *dentry_name(struct dentry *dentry, int extra)
+static char *dentry_name(struct dentry *dentry)
 {
         struct dentry *parent;
         char *root, *name;
@@ -104,7 +104,7 @@ static char *dentry_name(struct dentry *dentry, int extra)
 
         root = parent->d_sb->s_fs_info;
         len += strlen(root);
-        name = kmalloc(len + extra + 1, GFP_KERNEL);
+        name = kmalloc(len + 1, GFP_KERNEL);
         if (name == NULL)
                 return NULL;
 
@@ -121,12 +121,12 @@ static char *dentry_name(struct dentry *dentry, int extra)
         return name;
 }
 
-static char *inode_name(struct inode *ino, int extra)
+static char *inode_name(struct inode *ino)
 {
         struct dentry *dentry;
 
         dentry = list_entry(ino->i_dentry.next, struct dentry, d_alias);
-        return dentry_name(dentry, extra);
+        return dentry_name(dentry);
 }
 
 static char *follow_link(char *link)
@@ -267,7 +267,7 @@ int hostfs_readdir(struct file *file, void *ent, filldir_t filldir)
         unsigned long long next, ino;
         int error, len;
 
-        name = dentry_name(file->f_path.dentry, 0);
+        name = dentry_name(file->f_path.dentry);
         if (name == NULL)
                 return -ENOMEM;
         dir = open_dir(name, &error);
@@ -312,7 +312,7 @@ int hostfs_file_open(struct inode *ino, struct file *file)
         if (w)
                 r = 1;
 
-        name = dentry_name(file->f_path.dentry, 0);
+        name = dentry_name(file->f_path.dentry);
         if (name == NULL)
                 return -ENOMEM;
 
@@ -519,7 +519,7 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, int mode,
         }
 
         error = -ENOMEM;
-        name = dentry_name(dentry, 0);
+        name = dentry_name(dentry);
         if (name == NULL)
                 goto out_put;
 
@@ -561,7 +561,7 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
         }
 
         err = -ENOMEM;
-        name = dentry_name(dentry, 0);
+        name = dentry_name(dentry);
         if (name == NULL)
                 goto out_put;
 
@@ -585,29 +585,14 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
         return ERR_PTR(err);
 }
 
-static char *inode_dentry_name(struct inode *ino, struct dentry *dentry)
-{
-        char *file;
-        int len;
-
-        file = inode_name(ino, dentry->d_name.len + 1);
-        if (file == NULL)
-                return NULL;
-        strcat(file, "/");
-        len = strlen(file);
-        strncat(file, dentry->d_name.name, dentry->d_name.len);
-        file[len + dentry->d_name.len] = '\0';
-        return file;
-}
-
 int hostfs_link(struct dentry *to, struct inode *ino, struct dentry *from)
 {
         char *from_name, *to_name;
         int err;
 
-        if ((from_name = inode_dentry_name(ino, from)) == NULL)
+        if ((from_name = dentry_name(from)) == NULL)
                 return -ENOMEM;
-        to_name = dentry_name(to, 0);
+        to_name = dentry_name(to);
         if (to_name == NULL) {
                 kfree(from_name);
                 return -ENOMEM;
@@ -623,7 +608,7 @@ int hostfs_unlink(struct inode *ino, struct dentry *dentry)
         char *file;
         int err;
 
-        if ((file = inode_dentry_name(ino, dentry)) == NULL)
+        if ((file = dentry_name(dentry)) == NULL)
                 return -ENOMEM;
         if (append)
                 return -EPERM;
@@ -638,7 +623,7 @@ int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
         char *file;
         int err;
 
-        if ((file = inode_dentry_name(ino, dentry)) == NULL)
+        if ((file = dentry_name(dentry)) == NULL)
                 return -ENOMEM;
         err = make_symlink(file, to);
         kfree(file);
@@ -650,7 +635,7 @@ int hostfs_mkdir(struct inode *ino, struct dentry *dentry, int mode)
         char *file;
         int err;
 
-        if ((file = inode_dentry_name(ino, dentry)) == NULL)
+        if ((file = dentry_name(dentry)) == NULL)
                 return -ENOMEM;
         err = do_mkdir(file, mode);
         kfree(file);
@@ -662,7 +647,7 @@ int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
         char *file;
         int err;
 
-        if ((file = inode_dentry_name(ino, dentry)) == NULL)
+        if ((file = dentry_name(dentry)) == NULL)
                 return -ENOMEM;
         err = do_rmdir(file);
         kfree(file);
@@ -682,7 +667,7 @@ int hostfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
         }
 
         err = -ENOMEM;
-        name = dentry_name(dentry, 0);
+        name = dentry_name(dentry);
         if (name == NULL)
                 goto out_put;
 
@@ -715,9 +700,9 @@ int hostfs_rename(struct inode *from_ino, struct dentry *from,
         char *from_name, *to_name;
         int err;
 
-        if ((from_name = inode_dentry_name(from_ino, from)) == NULL)
+        if ((from_name = dentry_name(from)) == NULL)
                 return -ENOMEM;
-        if ((to_name = inode_dentry_name(to_ino, to)) == NULL) {
+        if ((to_name = dentry_name(to)) == NULL) {
                 kfree(from_name);
                 return -ENOMEM;
         }
@@ -735,7 +720,7 @@ int hostfs_permission(struct inode *ino, int desired)
         if (desired & MAY_READ) r = 1;
         if (desired & MAY_WRITE) w = 1;
         if (desired & MAY_EXEC) x = 1;
-        name = inode_name(ino, 0);
+        name = inode_name(ino);
         if (name == NULL)
                 return -ENOMEM;
 
@@ -801,7 +786,7 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
         if (attr->ia_valid & ATTR_MTIME_SET) {
                 attrs.ia_valid |= HOSTFS_ATTR_MTIME_SET;
         }
-        name = dentry_name(dentry, 0);
+        name = dentry_name(dentry);
         if (name == NULL)
                 return -ENOMEM;
         err = set_attr(name, &attrs, fd);
@@ -856,7 +841,7 @@ int hostfs_link_readpage(struct file *file, struct page *page)
         int err;
 
         buffer = kmap(page);
-        name = inode_name(page->mapping->host, 0);
+        name = inode_name(page->mapping->host);
         if (name == NULL)
                 return -ENOMEM;
         err = hostfs_do_readlink(name, buffer, PAGE_CACHE_SIZE);