Merge branch 'master' into for-next

Fast-forward merge with Linus to be able to merge patches
based on more recent version of the tree.

1 files changed, 14 insertions, 25 deletions

diff --git a/mm/failslab.c b/mm/failslab.c
index c5f88f240ddc..0dd7b8fec71c 100644
--- a/mm/failslab.c
+++ b/mm/failslab.c
@@ -5,10 +5,6 @@ static struct {
 	struct fault_attr attr;
 	u32 ignore_gfp_wait;
 	int cache_filter;
-#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
-	struct dentry *ignore_gfp_wait_file;
-	struct dentry *cache_filter_file;
-#endif
 } failslab = {
 	.attr = FAULT_ATTR_INITIALIZER,
 	.ignore_gfp_wait = 1,
@@ -38,32 +34,25 @@ __setup("failslab=", setup_failslab);
 #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
 static int __init failslab_debugfs_init(void)
 {
-	mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
 	struct dentry *dir;
-	int err;
-
-	err = init_fault_attr_dentries(&failslab.attr, "failslab");
-	if (err)
-		return err;
-	dir = failslab.attr.dentries.dir;
+	mode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
 
-	failslab.ignore_gfp_wait_file =
-		debugfs_create_bool("ignore-gfp-wait", mode, dir,
-				      &failslab.ignore_gfp_wait);
+	dir = fault_create_debugfs_attr("failslab", NULL, &failslab.attr);
+	if (IS_ERR(dir))
+		return PTR_ERR(dir);
 
-	failslab.cache_filter_file =
-		debugfs_create_bool("cache-filter", mode, dir,
-				      &failslab.cache_filter);
+	if (!debugfs_create_bool("ignore-gfp-wait", mode, dir,
+				&failslab.ignore_gfp_wait))
+		goto fail;
+	if (!debugfs_create_bool("cache-filter", mode, dir,
+				&failslab.cache_filter))
+		goto fail;
 
-	if (!failslab.ignore_gfp_wait_file ||
-	    !failslab.cache_filter_file) {
-		err = -ENOMEM;
-		debugfs_remove(failslab.cache_filter_file);
-		debugfs_remove(failslab.ignore_gfp_wait_file);
-		cleanup_fault_attr_dentries(&failslab.attr);
-	}
+	return 0;
+fail:
+	debugfs_remove_recursive(dir);
 
-	return err;
+	return -ENOMEM;
 }
 
 late_initcall(failslab_debugfs_init);