/* catch error in lookup */
if (IS_ERR(hidden_dentry) || IS_ERR(hidden_sto_dentry)) {
+@@ -553,9 +559,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+
+ /* Delete an old WOL file contained in the storage dir */
++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ meta_dentry = lookup_one_len(META_FILENAME,
+ hidden_sto_dentry,
+ strlen(META_FILENAME));
++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ if(meta_dentry->d_inode) {
+ err = vfs_unlink(hidden_sto_dentry->d_inode, meta_dentry);
+ dput(meta_dentry);
+@@ -643,9 +651,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+
+ /* Delete an old WOL file contained in the storage dir */
++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ meta_dentry = lookup_one_len(META_FILENAME,
+ hidden_sto_dentry,
+ strlen(META_FILENAME));
++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ if(meta_dentry->d_inode) {
+ /* is this necessary? dget(meta_dentry); */
+ err = vfs_unlink(hidden_sto_dentry->d_inode,
+@@ -688,9 +698,11 @@ mini_fo_rmdir(inode_t *dir, dentry_t *de
+ #endif
+
+ /* Delete an old WOL file contained in the storage dir */
++ mutex_lock(&hidden_sto_dentry->d_inode->i_mutex);
+ meta_dentry = lookup_one_len(META_FILENAME,
+ hidden_sto_dentry,
+ strlen(META_FILENAME));
++ mutex_unlock(&hidden_sto_dentry->d_inode->i_mutex);
+ if(meta_dentry->d_inode) {
+ /* is this necessary? dget(meta_dentry); */
+ err = vfs_unlink(hidden_sto_dentry->d_inode,
--- a/fs/mini_fo/meta.c
+++ b/fs/mini_fo/meta.c
@@ -43,9 +43,11 @@ int meta_build_lists(dentry_t *dentry)
if(!meta_dentry->d_inode) {
/* We need to create a META-file */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-@@ -641,9 +650,14 @@ int meta_sync_d_list(dentry_t *dentry, i
+@@ -641,9 +650,13 @@ int meta_sync_d_list(dentry_t *dentry, i
goto out;
}
}
dtohd2(dentry),
strlen(META_FILENAME));
+ mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
-+
+
if(!meta_dentry->d_inode) {
/* We need to create a META-file */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-@@ -784,9 +798,13 @@ int meta_sync_r_list(dentry_t *dentry, i
+@@ -784,9 +797,13 @@ int meta_sync_r_list(dentry_t *dentry, i
goto out;
}
}