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-rw-r--r--fs/sysfs/sysfs.h20
1 files changed, 16 insertions, 4 deletions
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 030a39dbb02c..93847d54c2e3 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -58,6 +58,7 @@ struct sysfs_dirent {
struct sysfs_dirent *s_sibling;
const char *s_name;
+ const void *s_ns;
union {
struct sysfs_elem_dir s_dir;
struct sysfs_elem_symlink s_symlink;
@@ -81,14 +82,22 @@ struct sysfs_dirent {
#define SYSFS_COPY_NAME (SYSFS_DIR | SYSFS_KOBJ_LINK)
#define SYSFS_ACTIVE_REF (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR)
-#define SYSFS_FLAG_MASK ~SYSFS_TYPE_MASK
-#define SYSFS_FLAG_REMOVED 0x0200
+#define SYSFS_NS_TYPE_MASK 0xff00
+#define SYSFS_NS_TYPE_SHIFT 8
+
+#define SYSFS_FLAG_MASK ~(SYSFS_NS_TYPE_MASK|SYSFS_TYPE_MASK)
+#define SYSFS_FLAG_REMOVED 0x020000
static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
{
return sd->s_flags & SYSFS_TYPE_MASK;
}
+static inline enum kobj_ns_type sysfs_ns_type(struct sysfs_dirent *sd)
+{
+ return (sd->s_flags & SYSFS_NS_TYPE_MASK) >> SYSFS_NS_TYPE_SHIFT;
+}
+
#ifdef CONFIG_DEBUG_LOCK_ALLOC
#define sysfs_dirent_init_lockdep(sd) \
do { \
@@ -115,6 +124,7 @@ struct sysfs_addrm_cxt {
* mount.c
*/
struct sysfs_super_info {
+ const void *ns[KOBJ_NS_TYPES];
};
#define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
extern struct sysfs_dirent sysfs_root;
@@ -140,8 +150,10 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
+ const void *ns,
const unsigned char *name);
struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
+ const void *ns,
const unsigned char *name);
struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type);
@@ -152,7 +164,7 @@ int sysfs_create_subdir(struct kobject *kobj, const char *name,
void sysfs_remove_subdir(struct sysfs_dirent *sd);
int sysfs_rename(struct sysfs_dirent *sd,
- struct sysfs_dirent *new_parent_sd, const char *new_name);
+ struct sysfs_dirent *new_parent_sd, const void *ns, const char *new_name);
static inline struct sysfs_dirent *__sysfs_get(struct sysfs_dirent *sd)
{
@@ -182,7 +194,7 @@ int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat);
int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
size_t size, int flags);
-int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name);
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns, const char *name);
int sysfs_inode_init(void);
/*