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-rw-r--r--fs/tracefs/internal.h60
1 files changed, 55 insertions, 5 deletions
diff --git a/fs/tracefs/internal.h b/fs/tracefs/internal.h
index 4f2e49e219..beb3dcd0e4 100644
--- a/fs/tracefs/internal.h
+++ b/fs/tracefs/internal.h
@@ -5,12 +5,64 @@
enum {
TRACEFS_EVENT_INODE = BIT(1),
TRACEFS_EVENT_TOP_INODE = BIT(2),
+ TRACEFS_GID_PERM_SET = BIT(3),
+ TRACEFS_UID_PERM_SET = BIT(4),
+ TRACEFS_INSTANCE_INODE = BIT(5),
};
struct tracefs_inode {
+ struct inode vfs_inode;
+ /* The below gets initialized with memset_after(ti, 0, vfs_inode) */
unsigned long flags;
void *private;
- struct inode vfs_inode;
+};
+
+/*
+ * struct eventfs_attr - cache the mode and ownership of a eventfs entry
+ * @mode: saved mode plus flags of what is saved
+ * @uid: saved uid if changed
+ * @gid: saved gid if changed
+ */
+struct eventfs_attr {
+ int mode;
+ kuid_t uid;
+ kgid_t gid;
+};
+
+/*
+ * struct eventfs_inode - hold the properties of the eventfs directories.
+ * @list: link list into the parent directory
+ * @rcu: Union with @list for freeing
+ * @children: link list into the child eventfs_inode
+ * @entries: the array of entries representing the files in the directory
+ * @name: the name of the directory to create
+ * @events_dir: the dentry of the events directory
+ * @entry_attrs: Saved mode and ownership of the @d_children
+ * @data: The private data to pass to the callbacks
+ * @attr: Saved mode and ownership of eventfs_inode itself
+ * @is_freed: Flag set if the eventfs is on its way to be freed
+ * Note if is_freed is set, then dentry is corrupted.
+ * @is_events: Flag set for only the top level "events" directory
+ * @nr_entries: The number of items in @entries
+ * @ino: The saved inode number
+ */
+struct eventfs_inode {
+ union {
+ struct list_head list;
+ struct rcu_head rcu;
+ };
+ struct list_head children;
+ const struct eventfs_entry *entries;
+ const char *name;
+ struct dentry *events_dir;
+ struct eventfs_attr *entry_attrs;
+ void *data;
+ struct eventfs_attr attr;
+ struct kref kref;
+ unsigned int is_freed:1;
+ unsigned int is_events:1;
+ unsigned int nr_entries:30;
+ unsigned int ino;
};
static inline struct tracefs_inode *get_tracefs(const struct inode *inode)
@@ -22,9 +74,7 @@ struct dentry *tracefs_start_creating(const char *name, struct dentry *parent);
struct dentry *tracefs_end_creating(struct dentry *dentry);
struct dentry *tracefs_failed_creating(struct dentry *dentry);
struct inode *tracefs_get_inode(struct super_block *sb);
-struct dentry *eventfs_start_creating(const char *name, struct dentry *parent);
-struct dentry *eventfs_failed_creating(struct dentry *dentry);
-struct dentry *eventfs_end_creating(struct dentry *dentry);
-void eventfs_set_ef_status_free(struct tracefs_inode *ti, struct dentry *dentry);
+
+void eventfs_d_release(struct dentry *dentry);
#endif /* _TRACEFS_INTERNAL_H */