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Diffstat (limited to 'mm/failslab.c')
-rw-r--r--mm/failslab.c39
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);