From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Fri, 14 Feb 2014 22:02:07 +0000 (-0800)
Subject: sysfs: create bin_attributes under the requested group
X-Git-Tag: firefly_0821_release~176^2~4194^2~10
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=aabaf4c2050d21d39fe11eec889c508e84d6a328;p=firefly-linux-kernel-4.4.55.git

sysfs: create bin_attributes under the requested group

bin_attributes created/updated in create_files() (such as those listed
via (struct device).attribute_groups) were not placed under the
specified group, and instead appeared in the base kobj directory.

Fix this by making bin_attributes use creating code similar to normal
attributes.

A quick grep shows that no one is using bin_attrs in a named attribute
group yet, so we can do this without breaking anything in usespace.

Note that I do not add is_visible() support to
bin_attributes, though that could be done as well.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 6b579387c67a..aa0406895b53 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -70,8 +70,11 @@ static int create_files(struct kernfs_node *parent, struct kobject *kobj,
 	if (grp->bin_attrs) {
 		for (bin_attr = grp->bin_attrs; *bin_attr; bin_attr++) {
 			if (update)
-				sysfs_remove_bin_file(kobj, *bin_attr);
-			error = sysfs_create_bin_file(kobj, *bin_attr);
+				kernfs_remove_by_name(parent,
+						(*bin_attr)->attr.name);
+			error = sysfs_add_file_mode_ns(parent,
+					&(*bin_attr)->attr, true,
+					(*bin_attr)->attr.mode, NULL);
 			if (error)
 				break;
 		}