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authorTejun Heo <tj@kernel.org>2013-12-11 16:02:57 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-17 08:59:15 -0800
commit2063d608f5110d120db60e896ec2c70c95bb7978 (patch)
tree45b02932c241cf2fe6a54ee4013a94221b2c2b8d /fs/sysfs
parentd0ae3d4347ee025cf23b850d484fe8593f7dd0f2 (diff)
downloadop-kernel-dev-2063d608f5110d120db60e896ec2c70c95bb7978.zip
op-kernel-dev-2063d608f5110d120db60e896ec2c70c95bb7978.tar.gz
kernfs: mark static names with KERNFS_STATIC_NAME
Because sysfs used struct attribute which are supposed to stay constant, sysfs didn't copy names when creating regular files. The specified string for name was supposed to stay constant. Such distinction isn't inherent for kernfs. kernfs_create_file[_ns]() should be able to take the same @name as kernfs_create_dir[_ns]() As there can be huge number of sysfs attributes, we still want to be able to use static names for sysfs attributes. This patch renames kernfs_create_file_ns_key() to __kernfs_create_file() and adds @name_is_static parameter so that the caller can explicitly indicate that @name can be used without copying. kernfs is updated to use KERNFS_STATIC_NAME to distinguish static and copied names. This patch doesn't introduce any behavior changes. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/sysfs')
-rw-r--r--fs/sysfs/file.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index fe6388f..810cf6e 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -252,8 +252,8 @@ int sysfs_add_file_mode_ns(struct kernfs_node *parent,
if (!attr->ignore_lockdep)
key = attr->key ?: (struct lock_class_key *)&attr->skey;
#endif
- kn = kernfs_create_file_ns_key(parent, attr->name, mode, size,
- ops, (void *)attr, ns, key);
+ kn = __kernfs_create_file(parent, attr->name, mode, size, ops,
+ (void *)attr, ns, true, key);
if (IS_ERR(kn)) {
if (PTR_ERR(kn) == -EEXIST)
sysfs_warn_dup(parent, attr->name);
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