X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fdebugfs%2Finode.c;h=b55b4ea9a67675a92377ffeb4a12ab9542ed8ca6;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=b529786699e7025a4c3e5e654b8b2524c001430b;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index b52978669..b55b4ea9a 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -67,12 +67,13 @@ static struct inode *debugfs_get_inode(struct super_block *sb, int mode, dev_t d
 static int debugfs_mknod(struct inode *dir, struct dentry *dentry,
 			 int mode, dev_t dev)
 {
-	struct inode *inode = debugfs_get_inode(dir->i_sb, mode, dev);
+	struct inode *inode;
 	int error = -EPERM;
 
 	if (dentry->d_inode)
 		return -EEXIST;
 
+	inode = debugfs_get_inode(dir->i_sb, mode, dev);
 	if (inode) {
 		d_instantiate(dentry, inode);
 		dget(dentry);
@@ -110,16 +111,6 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent)
 	return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files);
 }
 
-static struct dentry * get_dentry(struct dentry *parent, const char *name)
-{               
-	struct qstr qstr;
-
-	qstr.name = name;
-	qstr.len = strlen(name);
-	qstr.hash = full_name_hash(name,qstr.len);
-	return lookup_hash(&qstr,parent);
-}               
-
 static struct super_block *debug_get_sb(struct file_system_type *fs_type,
 				        int flags, const char *dev_name,
 					void *data)
@@ -156,8 +147,8 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
 	}
 
 	*dentry = NULL;
-	down(&parent->d_inode->i_sem);
-	*dentry = get_dentry (parent, name);
+	mutex_lock(&parent->d_inode->i_mutex);
+	*dentry = lookup_one_len(name, parent, strlen(name));
 	if (!IS_ERR(dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = debugfs_mkdir(parent->d_inode, *dentry, mode);
@@ -165,7 +156,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
 			error = debugfs_create(parent->d_inode, *dentry, mode);
 	} else
 		error = PTR_ERR(dentry);
-	up(&parent->d_inode->i_sem);
+	mutex_unlock(&parent->d_inode->i_mutex);
 
 	return error;
 }
@@ -201,7 +192,7 @@ static int debugfs_create_by_name(const char *name, mode_t mode,
  */
 struct dentry *debugfs_create_file(const char *name, mode_t mode,
 				   struct dentry *parent, void *data,
-				   struct file_operations *fops)
+				   const struct file_operations *fops)
 {
 	struct dentry *dentry = NULL;
 	int error;
@@ -283,7 +274,7 @@ void debugfs_remove(struct dentry *dentry)
 	if (!parent || !parent->d_inode)
 		return;
 
-	down(&parent->d_inode->i_sem);
+	mutex_lock(&parent->d_inode->i_mutex);
 	if (debugfs_positive(dentry)) {
 		if (dentry->d_inode) {
 			if (S_ISDIR(dentry->d_inode->i_mode))
@@ -293,7 +284,7 @@ void debugfs_remove(struct dentry *dentry)
 		dput(dentry);
 		}
 	}
-	up(&parent->d_inode->i_sem);
+	mutex_unlock(&parent->d_inode->i_mutex);
 	simple_release_fs(&debugfs_mount, &debugfs_mount_count);
 }
 EXPORT_SYMBOL_GPL(debugfs_remove);