diff options
Diffstat (limited to 'fs/debugfs/internal.h')
| -rw-r--r-- | fs/debugfs/internal.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/debugfs/internal.h b/fs/debugfs/internal.h index 0eea99432840..cb1e8139c398 100644 --- a/fs/debugfs/internal.h +++ b/fs/debugfs/internal.h @@ -25,4 +25,12 @@ struct debugfs_fsdata { struct completion active_users_drained; }; +/* + * 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) + #endif /* _DEBUGFS_INTERNAL_H_ */ |