diff options
Diffstat (limited to 'drivers/nvme/host/sysfs.c')
| -rw-r--r-- | drivers/nvme/host/sysfs.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/nvme/host/sysfs.c b/drivers/nvme/host/sysfs.c index 6d31226f7a4f..29430949ce2f 100644 --- a/drivers/nvme/host/sysfs.c +++ b/drivers/nvme/host/sysfs.c @@ -260,6 +260,7 @@ static struct attribute *nvme_ns_attrs[] = { &dev_attr_ana_state.attr, &dev_attr_queue_depth.attr, &dev_attr_numa_nodes.attr, + &dev_attr_delayed_removal_secs.attr, #endif &dev_attr_io_passthru_err_log_enabled.attr, NULL, @@ -296,6 +297,12 @@ static umode_t nvme_ns_attrs_are_visible(struct kobject *kobj, if (nvme_disk_is_ns_head(dev_to_disk(dev))) return 0; } + if (a == &dev_attr_delayed_removal_secs.attr) { + struct gendisk *disk = dev_to_disk(dev); + + if (!nvme_disk_is_ns_head(disk)) + return 0; + } #endif return a->mode; } @@ -306,13 +313,41 @@ static const struct attribute_group nvme_ns_attr_group = { }; #ifdef CONFIG_NVME_MULTIPATH +/* + * NOTE: The dummy attribute does not appear in sysfs. It exists solely to allow + * control over the visibility of the multipath sysfs node. Without at least one + * attribute defined in nvme_ns_mpath_attrs[], the sysfs implementation does not + * invoke the multipath_sysfs_group_visible() method. As a result, we would not + * be able to control the visibility of the multipath sysfs node. + */ +static struct attribute dummy_attr = { + .name = "dummy", +}; + static struct attribute *nvme_ns_mpath_attrs[] = { + &dummy_attr, NULL, }; +static bool multipath_sysfs_group_visible(struct kobject *kobj) +{ + struct device *dev = container_of(kobj, struct device, kobj); + + return nvme_disk_is_ns_head(dev_to_disk(dev)); +} + +static bool multipath_sysfs_attr_visible(struct kobject *kobj, + struct attribute *attr, int n) +{ + return false; +} + +DEFINE_SYSFS_GROUP_VISIBLE(multipath_sysfs) + const struct attribute_group nvme_ns_mpath_attr_group = { .name = "multipath", .attrs = nvme_ns_mpath_attrs, + .is_visible = SYSFS_GROUP_VISIBLE(multipath_sysfs), }; #endif |