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Message-Id: <1225409281.4387.256.camel@haakon2.linux-iscsi.org>
Date: Thu, 30 Oct 2008 16:28:01 -0700
From: "Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To: "Linux-iSCSI.org Target Dev"
<linux-iscsi-target-dev@...glegroups.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
linux-scsi <linux-scsi@...r.kernel.org>
Subject: [PATCH] [Target_Core_Mod/ConfigFS]: Updates for target_core_cit
>>From 1bfa0c16284c97121229e82d2be1838873b1178e Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@...ux-iscsi.org>
Date: Thu, 30 Oct 2008 16:10:49 -0700
Subject: [PATCH] [Target_Core_Mod/ConfigFS]: Updates for target_core_cit
Remove last remaining IOCTL bits from /sys/kernel/config/target/core/$PLUGIN_HBA
in target_core_ops->make_group() and target_core_ops->drop_item().
Also, updated some ERR_PTR() return values in target_core_call_freedev(),
and removed incorrect FIXME: from early devel days before it was understood
that ConfigFS protects se_hba_t->hba_id, but we still want to block when
when access se_hba_t across different $STORAGE_OBJECTS.
Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>
---
drivers/lio-core/target_core_configfs.c | 71 ++++--------------------------
1 files changed, 10 insertions(+), 61 deletions(-)
diff --git a/drivers/lio-core/target_core_configfs.c b/drivers/lio-core/target_core_configfs.c
index a5792e3..77950c1 100644
--- a/drivers/lio-core/target_core_configfs.c
+++ b/drivers/lio-core/target_core_configfs.c
@@ -41,8 +41,6 @@
#include <iscsi_target_core.h>
#include <target_core_base.h>
#include <iscsi_target_error.h>
-#include <iscsi_target_ioctl.h>
-#include <iscsi_target_ioctl_defs.h>
#include <target_core_device.h>
#include <iscsi_target_device.h>
#include <target_core_hba.h>
@@ -831,7 +829,6 @@ static struct config_item_type target_core_dev_cit = {
// Start functions for struct config_item_type target_core_hba_cit
-#warning Fix unprotected reference to hba_p
static struct config_group *target_core_call_createdev (
struct config_group *group,
const char *name)
@@ -907,7 +904,6 @@ out:
return(NULL);
}
-#warning Fix unprotected reference to hba_p
static void target_core_call_freedev (
struct config_group *group,
struct config_item *item)
@@ -1009,9 +1005,7 @@ static struct config_group *target_core_call_addhbatotarget (
{
char *se_plugin_str, *str, *str2, *endptr;
se_hba_t *hba;
- se_hbainfo_t hba_info;
se_plugin_t *se_plugin;
- struct iscsi_target *tg;
char buf[TARGET_CORE_NAME_MAX_LEN];
u32 plugin_dep_id;
int hba_type = 0, ret;
@@ -1021,13 +1015,13 @@ static struct config_group *target_core_call_addhbatotarget (
printk(KERN_ERR "Passed *name strlen(): %d exceeds"
" TARGET_CORE_NAME_MAX_LEN: %d\n", (int)strlen(name),
TARGET_CORE_NAME_MAX_LEN);
- return(NULL);
+ return(ERR_PTR(-ENAMETOOLONG));
}
snprintf(buf, TARGET_CORE_NAME_MAX_LEN, "%s", name);
if (!(str = strstr(buf, "_"))) {
printk(KERN_ERR "Unable to locate \"_\" for $SUBSYSTEM_PLUGIN_$HOST_ID\n");
- return(NULL);
+ return(ERR_PTR(-EINVAL));
}
se_plugin_str = buf;
@@ -1044,7 +1038,7 @@ static struct config_group *target_core_call_addhbatotarget (
}
if (!(se_plugin = transport_core_get_plugin_by_name(se_plugin_str)))
- return(NULL);
+ return(ERR_PTR(-EINVAL));
hba_type = se_plugin->plugin_type;
plugin_dep_id = simple_strtoul(str, &endptr, 0);
@@ -1053,70 +1047,30 @@ static struct config_group *target_core_call_addhbatotarget (
se_plugin->plugin_name, hba_type, plugin_dep_id);
if (!(hba = core_get_next_free_hba()))
- return(NULL);
-
- if (!(tg = kzalloc(sizeof(struct iscsi_target), GFP_KERNEL)))
- return(ERR_PTR(-ENOMEM));
+ return(ERR_PTR(-EINVAL));
-#warning This should go into se_subsystem_api_t API
- switch (hba_type) {
- case PSCSI:
- tg->scsi_host_id = plugin_dep_id;
- tg->hba_params_set |= PARAM_HBA_SCSI_HOST_ID;
- break;
- case IBLOCK:
- tg->iblock_host_id = plugin_dep_id;
- tg->hba_params_set |= PARAM_HBA_IBLOCK_HOST_ID;
- break;
- case FILEIO:
- tg->fd_host_id = plugin_dep_id;
- tg->hba_params_set |= PARAM_HBA_FD_HOST_ID;
- break;
- case RAMDISK_DR:
- case RAMDISK_MCP:
- tg->rd_host_id = plugin_dep_id;
- tg->hba_params_set |= PARAM_HBA_RD_HOST_ID;
- break;
- default:
- printk(KERN_ERR "Unable to setup hba_type: %d name: %s\n",
- hba_type, se_plugin_str);
- goto out;
- }
- tg->hba_type = hba_type;
- tg->params_set |= PARAM_HBA_TYPE;
- tg->hba_id = hba->hba_id;
- tg->params_set |= PARAM_HBA_ID;
-
- memset(&hba_info, 0, sizeof(se_hbainfo_t));
- hba_info.hba_id = hba->hba_id;
- hba_info.hba_type = hba_type;
+ hba->type = hba_type;
- if ((ret = iscsi_hba_check_addhba_params(tg, &hba_info)) < 0)
- goto out;
-
- if ((ret = iscsi_hba_add_hba(hba, &hba_info, tg)) < 0)
+ if ((ret = se_core_add_hba(hba, plugin_dep_id)) < 0)
goto out;
config_group_init_type_name(&hba->hba_group, name, &target_core_hba_cit);
- kfree(tg);
core_put_hba(hba);
return(&hba->hba_group);
out:
- kfree(tg);
+ hba->type = 0;
core_put_hba(hba);
- return(NULL);
+ return(ERR_PTR(ret));
}
-#warning Fix unprotected reference to hba_p
static void target_core_call_delhbafromtarget (
struct config_group *group,
struct config_item *item)
{
se_hba_t *hba_p = container_of(to_config_group(item), se_hba_t, hba_group);
se_hba_t *hba = NULL;
- struct iscsi_target *tg;
int ret;
if (!(hba_p)) {
@@ -1124,18 +1078,13 @@ static void target_core_call_delhbafromtarget (
return;
}
- if (!(tg = kzalloc(sizeof(struct iscsi_target), GFP_KERNEL)))
- return;
-
if (!(hba = core_get_hba_from_id(hba_p->hba_id, 0)))
- goto out;
+ return;
config_item_put(item);
- ret = iscsi_hba_del_hba(hba);
+ ret = se_core_del_hba(hba);
core_put_hba(hba);
-out:
- kfree(tg);
return;
}
--
1.5.4.1
--
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