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target: Have dev/enable show if TCM device is configured 

User tools need to know if the device is properly configured, since if
not, some other attributes are invalid.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover 2013-04-30 11:59:15 -07:00 committed by Nicholas Bellinger
parent e3e84cda32
commit 64146db71e
1 changed files with 9 additions and 2 deletions
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11
drivers/target/target_core_configfs.c
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@ -1584,6 +1584,13 @@ static struct target_core_configfs_attribute target_core_attr_dev_udev_path = {
.store = target_core_store_dev_udev_path, .store = target_core_store_dev_udev_path,
}; };
static ssize_t target_core_show_dev_enable(void *p, char *page)
{
struct se_device *dev = p;
return snprintf(page, PAGE_SIZE, "%d\n", !!(dev->dev_flags & DF_CONFIGURED));
}
static ssize_t target_core_store_dev_enable( static ssize_t target_core_store_dev_enable(
void *p, void *p,
const char *page, const char *page,
@ -1609,8 +1616,8 @@ static ssize_t target_core_store_dev_enable(
static struct target_core_configfs_attribute target_core_attr_dev_enable = { static struct target_core_configfs_attribute target_core_attr_dev_enable = {
.attr = { .ca_owner = THIS_MODULE, .attr = { .ca_owner = THIS_MODULE,
.ca_name = "enable", .ca_name = "enable",
.ca_mode = S_IWUSR }, .ca_mode = S_IRUGO | S_IWUSR },
.show = NULL, .show = target_core_show_dev_enable,
.store = target_core_store_dev_enable, .store = target_core_store_dev_enable,
}; };