diff options
Diffstat (limited to 'include/sqfs/inode.h')
| -rw-r--r-- | include/sqfs/inode.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/sqfs/inode.h b/include/sqfs/inode.h index 0bc33db..8df7158 100644 --- a/include/sqfs/inode.h +++ b/include/sqfs/inode.h @@ -400,6 +400,15 @@ struct sqfs_inode_dir_t { /** * @brief Combined size of all directory entries and headers in bytes. + * + * The value stored here is off by 3 bytes, i.e. 3 bytes larger than + * the actual listing on disk. The Linux implementation of SquashFS + * uses readdir() offsets 0 and 1 to synthesize "." and ".." entries, + * and after that looks into the actual directory. + * + * Why store an off-by-3 value on disk instead of faking it in the + * kernel and have something consistent here? Beats me, but that's + * how it is implemented. */ sqfs_u16 size; @@ -428,7 +437,7 @@ struct sqfs_inode_dir_ext_t { sqfs_u32 nlink; /** - * @brief Combined size of all directory entries and headers in bytes. + * @brief Size of all directory entries and headers in bytes plus 3. */ sqfs_u32 size; |