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| author | Tejun Heo <tj@kernel.org> | 2014-02-07 13:32:07 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-07 16:08:57 -0800 |
| commit | fa4cd451cceb77e97432b91fcf50a7e4a7361e29 (patch) | |
| tree | 5e5740ea38ebe390cc4f054e9fd5426003dcf46c /lib/kobject.c | |
| parent | 3eef34ad7dc369b7183ec383908aff3da2f6e5ec (diff) | |
| download | lwn-fa4cd451cceb77e97432b91fcf50a7e4a7361e29.tar.gz lwn-fa4cd451cceb77e97432b91fcf50a7e4a7361e29.zip | |
sysfs, kobject: add sysfs wrapper for kernfs_enable_ns()
Currently, kobject is invoking kernfs_enable_ns() directly. This is
fine now as sysfs and kernfs are enabled and disabled together. If
sysfs is disabled, kernfs_enable_ns() is switched to dummy
implementation too and everything is fine; however, kernfs will soon
have its own config option CONFIG_KERNFS and !SYSFS && KERNFS will be
possible, which can make kobject call into non-dummy
kernfs_enable_ns() with NULL kernfs_node pointers leading to an oops.
Introduce sysfs_enable_ns() which is a wrapper around
kernfs_enable_ns() so that it can be made a noop depending only on
CONFIG_SYSFS regardless of the planned CONFIG_KERNFS.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/kobject.c')
| -rw-r--r-- | lib/kobject.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/kobject.c b/lib/kobject.c index cb14aeac4cca..58751bb80a7c 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -94,7 +94,7 @@ static int create_dir(struct kobject *kobj) BUG_ON(ops->type >= KOBJ_NS_TYPES); BUG_ON(!kobj_ns_type_registered(ops->type)); - kernfs_enable_ns(kobj->sd); + sysfs_enable_ns(kobj->sd); } return 0; |