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scst: Allow replace a LUN without generating INQUIRY DATA HAS CHANGED (for failover)

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6534 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2015-10-08 00:13:00 +00:00
parent a975c37117
commit 12ba32186b
1 changed files with 8 additions and 1 deletions
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9
scst/src/scst_sysfs.c
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@@ -1268,6 +1268,7 @@ static int __scst_process_luns_mgmt_store(char *buffer,
SCST_LUN_ACTION_REPLACE = 3,
SCST_LUN_ACTION_CLEAR = 4,
};
bool replace_gen_ua = true;
TRACE_ENTRY();
@@ -1281,6 +1282,10 @@ static int __scst_process_luns_mgmt_store(char *buffer,
action = SCST_LUN_ACTION_DEL;
} else if (strcasecmp("replace", p) == 0) {
action = SCST_LUN_ACTION_REPLACE;
replace_gen_ua = true;
} else if (strcasecmp("replace_no_ua", p) == 0) {
action = SCST_LUN_ACTION_REPLACE;
replace_gen_ua = false;
} else if (strcasecmp("clear", p) == 0) {
action = SCST_LUN_ACTION_CLEAR;
} else {
@@ -1424,7 +1429,7 @@ static int __scst_process_luns_mgmt_store(char *buffer,
if (res != 0)
goto out_unlock;
if (dev_replaced) {
if (dev_replaced && replace_gen_ua) {
struct scst_tgt_dev *tgt_dev;
list_for_each_entry(tgt_dev, &dev->dev_tgt_dev_list,
@@ -1556,6 +1561,8 @@ static ssize_t scst_luns_mgmt_show(struct kobject *kobj,
" echo \"del lun\" >mgmt\n"
" echo \"replace H:C:I:L lun [parameters]\" >mgmt\n"
" echo \"replace VNAME lun [parameters]\" >mgmt\n"
" echo \"replace_no_ua H:C:I:L lun [parameters]\" >mgmt\n"
" echo \"replace_no_ua VNAME lun [parameters]\" >mgmt\n"
" echo \"clear\" >mgmt\n"
"\n"
"where parameters are one or more "