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path: root/drivers/oprofile
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Diffstat (limited to 'drivers/oprofile')
-rw-r--r--drivers/oprofile/oprofilefs.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 849357c..7c12d9c 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -139,17 +139,22 @@ static int __oprofilefs_create_file(struct super_block *sb,
struct dentry *dentry;
struct inode *inode;
+ mutex_lock(&root->d_inode->i_mutex);
dentry = d_alloc_name(root, name);
- if (!dentry)
+ if (!dentry) {
+ mutex_unlock(&root->d_inode->i_mutex);
return -ENOMEM;
+ }
inode = oprofilefs_get_inode(sb, S_IFREG | perm);
if (!inode) {
dput(dentry);
+ mutex_unlock(&root->d_inode->i_mutex);
return -ENOMEM;
}
inode->i_fop = fops;
+ inode->i_private = priv;
d_add(dentry, inode);
- dentry->d_inode->i_private = priv;
+ mutex_unlock(&root->d_inode->i_mutex);
return 0;
}
@@ -212,17 +217,22 @@ struct dentry *oprofilefs_mkdir(struct super_block *sb,
struct dentry *dentry;
struct inode *inode;
+ mutex_lock(&root->d_inode->i_mutex);
dentry = d_alloc_name(root, name);
- if (!dentry)
+ if (!dentry) {
+ mutex_unlock(&root->d_inode->i_mutex);
return NULL;
+ }
inode = oprofilefs_get_inode(sb, S_IFDIR | 0755);
if (!inode) {
dput(dentry);
+ mutex_unlock(&root->d_inode->i_mutex);
return NULL;
}
inode->i_op = &simple_dir_inode_operations;
inode->i_fop = &simple_dir_operations;
d_add(dentry, inode);
+ mutex_unlock(&root->d_inode->i_mutex);
return dentry;
}
@@ -266,6 +276,7 @@ static struct file_system_type oprofilefs_type = {
.mount = oprofilefs_mount,
.kill_sb = kill_litter_super,
};
+MODULE_ALIAS_FS("oprofilefs");
int __init oprofilefs_register(void)