mmc: core: Add cache control for eMMC4.5 device

[mirror_ubuntu-bionic-kernel.git] / lib / fault-inject.c

diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index 2577b121c7c1e5ef4413777d928b023ed52d42ac..4f7554025e30e48da1e81b2a090fdf2131f86179 100644 (file)
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -14,7 +14,7 @@
  * setup_fault_attr() is a helper function for various __setup handlers, so it
  * returns 0 on error, because that is what __setup handlers do.
  */
-int __init setup_fault_attr(struct fault_attr *attr, char *str)
+int setup_fault_attr(struct fault_attr *attr, char *str)
 {
        unsigned long probability;
        unsigned long interval;
@@ -36,6 +36,7 @@ int __init setup_fault_attr(struct fault_attr *attr, char *str)
 
        return 1;
 }
+EXPORT_SYMBOL_GPL(setup_fault_attr);
 
 static void fail_dump(struct fault_attr *attr)
 {
@@ -130,6 +131,7 @@ bool should_fail(struct fault_attr *attr, ssize_t size)
 
        return true;
 }
+EXPORT_SYMBOL_GPL(should_fail);
 
 #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
 
@@ -197,21 +199,15 @@ static struct dentry *debugfs_create_atomic_t(const char *name, mode_t mode,
        return debugfs_create_file(name, mode, parent, value, &fops_atomic_t);
 }
 
-void cleanup_fault_attr_dentries(struct fault_attr *attr)
-{
-       debugfs_remove_recursive(attr->dir);
-}
-
-int init_fault_attr_dentries(struct fault_attr *attr, const char *name)
+struct dentry *fault_create_debugfs_attr(const char *name,
+                       struct dentry *parent, struct fault_attr *attr)
 {
        mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
        struct dentry *dir;
 
-       dir = debugfs_create_dir(name, NULL);
+       dir = debugfs_create_dir(name, parent);
        if (!dir)
-               return -ENOMEM;
-
-       attr->dir = dir;
+               return ERR_PTR(-ENOMEM);
 
        if (!debugfs_create_ul("probability", mode, dir, &attr->probability))
                goto fail;
@@ -243,11 +239,12 @@ int init_fault_attr_dentries(struct fault_attr *attr, const char *name)
 
 #endif /* CONFIG_FAULT_INJECTION_STACKTRACE_FILTER */
 
-       return 0;
+       return dir;
 fail:
-       debugfs_remove_recursive(attr->dir);
+       debugfs_remove_recursive(dir);
 
-       return -ENOMEM;
+       return ERR_PTR(-ENOMEM);
 }
+EXPORT_SYMBOL_GPL(fault_create_debugfs_attr);
 
 #endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */