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authorIlya Dryomov <ilya.dryomov@inktank.com>2013-12-13 15:28:57 +0200
committerIlya Dryomov <ilya.dryomov@inktank.com>2013-12-31 20:31:58 +0200
commit92c76dc036e2139226e90851864d3e01e1db5dd8 (patch)
tree42144ae75306581bb4c748c43cd09388c57c1b60 /drivers/block/rbd.c
parentdd82fff1e8e7b486887dd88981776bb44e370848 (diff)
downloadop-kernel-dev-92c76dc036e2139226e90851864d3e01e1db5dd8.zip
op-kernel-dev-92c76dc036e2139226e90851864d3e01e1db5dd8.tar.gz
rbd: wire up is_visible() sysfs callback for rbd bus
In preparation for single-major device number allocation scheme, wire up attribute_group::is_visible() callback for rbd bus. This allows us to make the new single-major attributes conditional. Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block/rbd.c')
-rw-r--r--drivers/block/rbd.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 01ed767..3fa18b0 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -408,7 +408,18 @@ static struct attribute *rbd_bus_attrs[] = {
&bus_attr_remove.attr,
NULL,
};
-ATTRIBUTE_GROUPS(rbd_bus);
+
+static umode_t rbd_bus_is_visible(struct kobject *kobj,
+ struct attribute *attr, int index)
+{
+ return attr->mode;
+}
+
+static const struct attribute_group rbd_bus_group = {
+ .attrs = rbd_bus_attrs,
+ .is_visible = rbd_bus_is_visible,
+};
+__ATTRIBUTE_GROUPS(rbd_bus);
static struct bus_type rbd_bus_type = {
.name = "rbd",
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