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sysfs, kernfs: make sysfs_super_info->ns const 

Add const qualifier to sysfs_super_info->ns so that it's consistent
with other namespace tag usages in sysfs.  Because kobject doesn't use
const qualifier for namespace tags, this ends up requiring an explicit
cast to drop const qualifier in free_sysfs_super_info().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2013-11-28 14:54:37 -05:00 committed by Greg Kroah-Hartman
parent ccc532dc12
commit 51a35e9fd0
2 changed files with 8 additions and 8 deletions
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2
fs/sysfs/mount.c
View File

@ -92,7 +92,7 @@ static int sysfs_set_super(struct super_block *sb, void *data)
static void free_sysfs_super_info(struct sysfs_super_info *info)
{
kobj_ns_drop(KOBJ_NS_TYPE_NET, info->ns);
kobj_ns_drop(KOBJ_NS_TYPE_NET, (void *)info->ns);
kfree(info);
}

14
fs/sysfs/sysfs.h
View File

@ -18,14 +18,14 @@
* mount.c
*/
/*
* Each sb is associated with one namespace tag, currently the network
* namespace of the task which mounted this sysfs instance. If multiple
* tags become necessary, make the following an array and compare
* sysfs_dirent tag against every entry.
*/
struct sysfs_super_info {
void *ns;
/*
* Each sb is associated with one namespace tag, currently the network
* namespace of the task which mounted this sysfs instance. If multiple
* tags become necessary, make the following an array and compare
* sysfs_dirent tag against every entry.
*/
const void *ns;
};
#define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
extern struct sysfs_dirent sysfs_root;