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Message-ID: <20230815122316.4129333-2-haowenchao2@huawei.com>
Date: Tue, 15 Aug 2023 20:23:08 +0800
From: Wenchao Hao <haowenchao2@...wei.com>
To: "James E . J . Bottomley" <jejb@...ux.ibm.com>,
"Martin K . Petersen" <martin.petersen@...cle.com>,
Douglas Gilbert <dgilbert@...erlog.com>,
<linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <louhongxiang@...wei.com>, Wenchao Hao <haowenchao2@...wei.com>
Subject: [PATCH v4 1/9] scsi:scsi_debug: create scsi_debug directory in the debugfs filesystem
Create directory scsi_debug in the root of the debugfs filesystem.
Prepare to add interface for manage error injection.
Signed-off-by: Wenchao Hao <haowenchao2@...wei.com>
Acked-by: Douglas Gilbert <dgilbert@...erlog.com>
---
drivers/scsi/scsi_debug.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 9c0af50501f9..35c336271b13 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 +7014,8 @@ static int __init scsi_debug_init(void)
goto driver_unreg;
}
+ sdebug_debugfs_root = debugfs_create_dir("scsi_debug", NULL);
+
for (k = 0; k < hosts_to_add; k++) {
if (want_store && k == 0) {
ret = sdebug_add_host_helper(idx);
@@ -7057,6 +7062,7 @@ 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);
--
2.35.3
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