Create directory scsi_debug in the root of the debugfs filesystem.
Prepare to add interface for manage error injection.
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Wenchao Hao <haowenchao2@xxxxxxxxxx>
---
drivers/scsi/scsi_debug.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 9c0af50501f9..562a48f53cda 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -41,6 +41,7 @@
#include <linux/random.h>
#include <linux/xarray.h>
#include <linux/prefetch.h>
+#include <linux/debugfs.h>
#include <net/checksum.h>
@@ -862,6 +863,8 @@ static const int device_qfull_result =
static const int condition_met_result = SAM_STAT_CONDITION_MET;
+static struct dentry *sdebug_debugfs_root;
+
/* Only do the extra work involved in logical block provisioning if one or
* more of the lbpu, lbpws or lbpws10 parameters are given and we are doing
@@ -7011,6 +7014,10 @@ static int __init scsi_debug_init(void)
goto driver_unreg;
}
+ sdebug_debugfs_root = debugfs_create_dir("scsi_debug", NULL);
+ if (IS_ERR_OR_NULL(sdebug_debugfs_root))
+ pr_info("%s: failed to create initial debugfs directory\n", __func__);
+
for (k = 0; k < hosts_to_add; k++) {
if (want_store && k == 0) {
ret = sdebug_add_host_helper(idx);
@@ -7057,6 +7064,7 @@ static void __exit scsi_debug_exit(void)
sdebug_erase_all_stores(false);
xa_destroy(per_store_ap);
+ debugfs_remove(sdebug_debugfs_root);
}
device_initcall(scsi_debug_init);
--
2.32.0
