diff options
Diffstat (limited to 'mm/failslab.c')
| -rw-r--r-- | mm/failslab.c | 31 |
1 files changed, 10 insertions, 21 deletions
diff --git a/mm/failslab.c b/mm/failslab.c index 7df9f7f0abf1..1ce58c201dca 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, @@ -39,31 +35,24 @@ __setup("failslab=", setup_failslab); 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.dir; - - failslab.ignore_gfp_wait_file = - debugfs_create_bool("ignore-gfp-wait", mode, dir, - &failslab.ignore_gfp_wait); - failslab.cache_filter_file = - debugfs_create_bool("cache-filter", mode, dir, - &failslab.cache_filter); + if (!debugfs_create_bool("ignore-gfp-wait", mode, failslab.attr.dir, + &failslab.ignore_gfp_wait)) + goto fail; + if (!debugfs_create_bool("cache-filter", mode, failslab.attr.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: + cleanup_fault_attr_dentries(&failslab.attr); - return err; + return -ENOMEM; } late_initcall(failslab_debugfs_init); |