block: add fault injection mechanism for faking request timeouts

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / block / genhd.c

diff --git a/block/genhd.c b/block/genhd.c
index 8acaff0154e3e3aa913bc639c05ef3146a95862c..4cd3433c99ac7d64fe05b72a1061cba01059920a 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -817,6 +817,11 @@ static DEVICE_ATTR(stat, S_IRUGO, part_stat_show, NULL);
 static struct device_attribute dev_attr_fail =
        __ATTR(make-it-fail, S_IRUGO|S_IWUSR, part_fail_show, part_fail_store);
 #endif
+#ifdef CONFIG_FAIL_IO_TIMEOUT
+static struct device_attribute dev_attr_fail_timeout =
+       __ATTR(io-timeout-fail,  S_IRUGO|S_IWUSR, part_timeout_show,
+               part_timeout_store);
+#endif
 
 static struct attribute *disk_attrs[] = {
        &dev_attr_range.attr,
@@ -828,6 +833,9 @@ static struct attribute *disk_attrs[] = {
        &dev_attr_stat.attr,
 #ifdef CONFIG_FAIL_MAKE_REQUEST
        &dev_attr_fail.attr,
+#endif
+#ifdef CONFIG_FAIL_IO_TIMEOUT
+       &dev_attr_fail_timeout.attr,
 #endif
        NULL
 };