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scsi: scsi_debug: Create scsi_debug directory in the debugfs filesystem

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Create directory scsi_debug in the root of the debugfs filesystem.  Prepare
to add interface for manage error injection.

Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Wenchao Hao <haowenchao2@huawei.com>
Link: https://lore.kernel.org/r/20231010092051.608007-2-haowenchao2@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Wenchao Hao 2023-10-10 17:20:42 +08:00 committed by Martin K. Petersen
parent 0bb80ecc33
commit 6e2d15f59b
1 changed files with 8 additions and 0 deletions
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8
drivers/scsi/scsi_debug.c
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@ -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);