From: Chris Leech <cleech@redhat.com>
To: netdev@vger.kernel.org, containers@lists.linux-foundation.org
Subject: [PATCH 7/9] iscsi: convert flashnode devices from bus to class
Date: Tue, 7 Nov 2017 14:45:11 -0800 [thread overview]
Message-ID: <20171107224513.4217-8-cleech@redhat.com> (raw)
In-Reply-To: <20171107224513.4217-1-cleech@redhat.com>
The flashnode session and connection devices should be filtered by net
namespace along with the iscsi_host, but we can't do that with a bus
device. As these don't use any of the bus matching functionality, they
make more sense as a class device anyway.
Signed-off-by: Chris Leech <cleech@redhat.com>
---
drivers/scsi/qla4xxx/ql4_os.c | 2 +-
drivers/scsi/scsi_transport_iscsi.c | 36 +++++++++++++++---------------------
include/scsi/scsi_transport_iscsi.h | 2 ++
3 files changed, 18 insertions(+), 22 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 770313d0b986..55a729568873 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -7164,7 +7164,7 @@ static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data)
{
struct iscsi_bus_flash_session *fnode_sess;
- if (!iscsi_flashnode_bus_match(dev, NULL))
+ if (!iscsi_is_flashnode_session_dev(dev))
return 0;
fnode_sess = iscsi_dev_to_flash_session(dev);
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index fbec3a019f00..b053d57a482d 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1060,6 +1060,12 @@ static const struct device_type iscsi_flashnode_sess_dev_type = {
.release = iscsi_flashnode_sess_release,
};
+bool iscsi_is_flashnode_session_dev(struct device *dev)
+{
+ return dev->type == &iscsi_flashnode_sess_dev_type;
+}
+EXPORT_SYMBOL_GPL(iscsi_is_flashnode_session_dev);
+
/* flash node connection attrs show */
#define iscsi_flashnode_conn_attr_show(type, name, param) \
static ssize_t \
@@ -1246,20 +1252,8 @@ static const struct device_type iscsi_flashnode_conn_dev_type = {
.release = iscsi_flashnode_conn_release,
};
-static struct bus_type iscsi_flashnode_bus;
-
-int iscsi_flashnode_bus_match(struct device *dev,
- struct device_driver *drv)
-{
- if (dev->bus == &iscsi_flashnode_bus)
- return 1;
- return 0;
-}
-EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match);
-
-static struct bus_type iscsi_flashnode_bus = {
+static struct class iscsi_flashnode_bus = {
.name = "iscsi_flashnode",
- .match = &iscsi_flashnode_bus_match,
};
/**
@@ -1290,7 +1284,7 @@ iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index,
fnode_sess->transport = transport;
fnode_sess->target_id = index;
fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type;
- fnode_sess->dev.bus = &iscsi_flashnode_bus;
+ fnode_sess->dev.class = &iscsi_flashnode_bus;
fnode_sess->dev.parent = &shost->shost_gendev;
dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u",
shost->host_no, index);
@@ -1338,7 +1332,7 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost,
fnode_conn->transport = transport;
fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type;
- fnode_conn->dev.bus = &iscsi_flashnode_bus;
+ fnode_conn->dev.class = &iscsi_flashnode_bus;
fnode_conn->dev.parent = &fnode_sess->dev;
dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0",
shost->host_no, fnode_sess->target_id);
@@ -1371,7 +1365,7 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn);
*/
static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data)
{
- return dev->bus == &iscsi_flashnode_bus;
+ return dev->type == &iscsi_flashnode_conn_dev_type;
}
static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn)
@@ -1385,7 +1379,7 @@ static int flashnode_match_index(struct device *dev, void *data)
struct iscsi_bus_flash_session *fnode_sess = NULL;
int ret = 0;
- if (!iscsi_flashnode_bus_match(dev, NULL))
+ if (dev->type != &iscsi_flashnode_sess_dev_type)
goto exit_match_index;
fnode_sess = iscsi_dev_to_flash_session(dev);
@@ -1491,7 +1485,7 @@ EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess);
static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data)
{
- if (!iscsi_flashnode_bus_match(dev, NULL))
+ if (dev->type != &iscsi_flashnode_sess_dev_type)
return 0;
iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev));
@@ -4752,7 +4746,7 @@ static __init int iscsi_transport_init(void)
if (err)
goto unregister_conn_class;
- err = bus_register(&iscsi_flashnode_bus);
+ err = class_register(&iscsi_flashnode_bus);
if (err)
goto unregister_session_class;
@@ -4773,7 +4767,7 @@ static __init int iscsi_transport_init(void)
unregister_pernet_subsys:
unregister_pernet_subsys(&iscsi_net_ops);
unregister_flashnode_bus:
- bus_unregister(&iscsi_flashnode_bus);
+ class_unregister(&iscsi_flashnode_bus);
unregister_session_class:
transport_class_unregister(&iscsi_session_class);
unregister_conn_class:
@@ -4793,7 +4787,7 @@ static void __exit iscsi_transport_exit(void)
{
destroy_workqueue(iscsi_eh_timer_workq);
unregister_pernet_subsys(&iscsi_net_ops);
- bus_unregister(&iscsi_flashnode_bus);
+ class_unregister(&iscsi_flashnode_bus);
transport_class_unregister(&iscsi_connection_class);
transport_class_unregister(&iscsi_session_class);
transport_class_unregister(&iscsi_host_class);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 601e8633d495..2f461896e91f 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -489,6 +489,8 @@ iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data,
extern struct device *
iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess);
+extern bool iscsi_is_flashnode_session_dev(struct device *dev);
+
extern char *
iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state);
extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state);
--
2.9.5
next prev parent reply other threads:[~2017-11-07 22:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20171107180156.GD29597@straylight.hirudinean.org>
[not found] ` <20171107180156.GD29597-r8IHplWLGbA5tHQWs+pTeqPFFGjUI2lm2LY78lusg7I@public.gmane.org>
2017-11-07 22:45 ` [PATCH 0/9] use network namespace for iSCSI control interfaces Chris Leech
2017-11-07 22:45 ` [PATCH 2/9] iscsi: associate endpoints with a host Chris Leech
2017-11-07 22:45 ` [PATCH 3/9] iscsi: sysfs filtering by network namespace Chris Leech
[not found] ` <20171107224513.4217-1-cleech-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2017-11-07 22:45 ` [PATCH 1/9] iscsi: create per-net iscsi netlink kernel sockets Chris Leech
2017-11-07 22:45 ` [PATCH 4/9] iscsi: make all iSCSI netlink multicast namespace aware Chris Leech
2017-11-08 10:31 ` [PATCH 0/9] use network namespace for iSCSI control interfaces David Laight
2017-11-15 0:25 ` Chris Leech
2017-11-21 11:26 ` David Laight
2017-11-21 19:46 ` Eric W. Biederman
[not found] ` <687d0196888f4325aebc0989a8e12ced-1XygrNkDbNvwg4NCKwmqgw@public.gmane.org>
2017-11-21 20:20 ` Chris Leech
2017-11-07 22:45 ` [PATCH 5/9] iscsi: set netns for iscsi_tcp hosts Chris Leech
2017-11-07 22:45 ` [PATCH 6/9] iscsi: check net namespace for all iscsi lookups Chris Leech
2017-11-07 22:45 ` Chris Leech [this message]
2017-11-07 22:45 ` [PATCH 8/9] iscsi: rename iscsi_bus_flash_* to iscsi_flash_* Chris Leech
2017-11-07 22:45 ` [PATCH 9/9] iscsi: filter flashnode sysfs by net namespace Chris Leech
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