diff options
Diffstat (limited to 'fs/debugfs/internal.h')
| -rw-r--r-- | fs/debugfs/internal.h | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/fs/debugfs/internal.h b/fs/debugfs/internal.h index bbae4a228ef4..93483fe84425 100644 --- a/fs/debugfs/internal.h +++ b/fs/debugfs/internal.h @@ -11,6 +11,22 @@ struct file_operations; +struct debugfs_inode_info { + struct inode vfs_inode; + union { + const void *raw; + const struct file_operations *real_fops; + const struct debugfs_short_fops *short_fops; + debugfs_automount_t automount; + }; + const void *aux; +}; + +static inline struct debugfs_inode_info *DEBUGFS_I(struct inode *inode) +{ + return container_of(inode, struct debugfs_inode_info, vfs_inode); +} + /* declared over in file.c */ extern const struct file_operations debugfs_noop_file_operations; extern const struct file_operations debugfs_open_proxy_file_operations; @@ -20,29 +36,25 @@ extern const struct file_operations debugfs_full_short_proxy_file_operations; struct debugfs_fsdata { const struct file_operations *real_fops; const struct debugfs_short_fops *short_fops; - union { - /* automount_fn is used when real_fops is NULL */ - debugfs_automount_t automount; - struct { - refcount_t active_users; - struct completion active_users_drained; - - /* protect cancellations */ - struct mutex cancellations_mtx; - struct list_head cancellations; - }; + struct { + refcount_t active_users; + struct completion active_users_drained; + + /* protect cancellations */ + struct mutex cancellations_mtx; + struct list_head cancellations; + unsigned int methods; }; }; -/* - * A dentry's ->d_fsdata either points to the real fops or to a - * dynamically allocated debugfs_fsdata instance. - * In order to distinguish between these two cases, a real fops - * pointer gets its lowest bit set. - */ -#define DEBUGFS_FSDATA_IS_REAL_FOPS_BIT BIT(0) +enum { + HAS_READ = 1, + HAS_WRITE = 2, + HAS_LSEEK = 4, + HAS_POLL = 8, + HAS_IOCTL = 16 +}; -/* Access BITS */ #define DEBUGFS_ALLOW_API BIT(0) #define DEBUGFS_ALLOW_MOUNT BIT(1) |