FS: File system directory size

[moonlight83340]

Hi,
I have a question on directories size using file system.

https://docs.zephyrproject.org/latest/doxygen/html/structfs__dirent.html
For fs_dirent it said in the documentation that the Size of file is 0 if directory but does it something set in zephyr or does it depend on file system ?
I didn't found that it was set on zephyr part but looking at littlefs spec I found that directory size wasn't know so it wouldn't be 0 for sure.
https://github.com/littlefs-project/littlefs/blob/master/SPEC.md

The dir-struct tag contains only the pointer to the first metadata-pair in the directory. The directory size is not known without traversing the directory.

Does anyone know something about that ?

[yashi]

zephyr/subsys/fs/fs.c

Line 623 in b70c045

entry->size = 0;

zephyr/subsys/fs/littlefs_fs.c

Line 498 in b70c045

entry->size = info->size;

https://github.com/zephyrproject-rtos/littlefs/blob/8f5ca347843363882619d8f96c00d8dbd88a8e79/lfs.c#L1442-L1446

    if (lfs_tag_type3(tag) == LFS_TYPE_CTZSTRUCT) {
        info->size = ctz.size;
    } else if (lfs_tag_type3(tag) == LFS_TYPE_INLINESTRUCT) {
        info->size = lfs_tag_size(tag);
    }

Would you test on your littlefs to see what you get?