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target: transport_subsystem_check_init cleanups

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Remove the now unnecessary extra call to transport_subsystem_check_init() in
target_core_register_fabric(), and also merge transport_subsystem_reqmods()
directly into transport_subsystem_check_init().

Reported-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2011-10-22 01:03:54 -07:00
parent 35e0e75753
commit dbc5623eb2
3 changed files with 7 additions and 29 deletions
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11
drivers/target/target_core_configfs.c
View File

@ -131,14 +131,6 @@ static struct config_group *target_core_register_fabric(
pr_debug("Target_Core_ConfigFS: REGISTER -> group: %p name:"
" %s\n", group, name);
/*
* Ensure that TCM subsystem plugins are loaded at this point for
* using the RAMDISK_DR virtual LUN 0 and all other struct se_port
* LUN symlinks.
*/
if (transport_subsystem_check_init() < 0)
return ERR_PTR(-EINVAL);
/*
* Below are some hardcoded request_module() calls to automatically
* local fabric modules when the following is called:
@ -3079,8 +3071,7 @@ static struct config_group *target_core_call_addhbatotarget(
/*
* Load up TCM subsystem plugins if they have not already been loaded.
*/
if (transport_subsystem_check_init() < 0)
return ERR_PTR(-EINVAL);
transport_subsystem_check_init();
hba = core_alloc_hba(se_plugin_str, plugin_dep_id, 0);
if (IS_ERR(hba))

23
drivers/target/target_core_transport.c
View File

@ -234,10 +234,13 @@ void transport_init_queue_obj(struct se_queue_obj *qobj)
}
EXPORT_SYMBOL(transport_init_queue_obj);
static int transport_subsystem_reqmods(void)
void transport_subsystem_check_init(void)
{
int ret;
if (sub_api_initialized)
return;
ret = request_module("target_core_iblock");
if (ret != 0)
pr_err("Unable to load target_core_iblock\n");
@ -254,24 +257,8 @@ static int transport_subsystem_reqmods(void)
if (ret != 0)
pr_err("Unable to load target_core_stgt\n");
return 0;
}
int transport_subsystem_check_init(void)
{
int ret;
if (sub_api_initialized)
return 0;
/*
* Request the loading of known TCM subsystem plugins..
*/
ret = transport_subsystem_reqmods();
if (ret < 0)
return ret;
sub_api_initialized = 1;
return 0;
return;
}
struct se_session *transport_init_session(void)

2
include/target/target_core_transport.h
View File

@ -113,7 +113,7 @@ extern int init_se_kmem_caches(void);
extern void release_se_kmem_caches(void);
extern u32 scsi_get_new_index(scsi_index_t);
extern void transport_init_queue_obj(struct se_queue_obj *);
extern int transport_subsystem_check_init(void);
extern void transport_subsystem_check_init(void);
extern int transport_subsystem_register(struct se_subsystem_api *);
extern void transport_subsystem_release(struct se_subsystem_api *);
extern void transport_load_plugins(void);