fs/littlefs: Add to get the full path

[crafcat7]

Summary

Add FIOC_FILEPATH to LFS ioctl

Impact

LFS ioctl adds FIOC_FILEPATH for file paths

Testing

local test PASS

[xiaoxiang781216]

@crafcat7 let's put littlefs patch in the same patch to avoid the ci break.

[crafcat7]

@crafcat7 let's put littlefs patch in the same patch to avoid the ci break.

Okay, I'll sort out the relevant changes and add them in

[jturnsek]

Missing lfs_file_path

[crafcat7]

Missing lfs_file_path

Please try to compile it again with the latest changes, I submitted an implementation of lfs_file_path for littlefs.

[jturnsek]

Missing lfs_file_path

Please try to compile it again with the latest changes, I submitted an implementation of lfs_file_path for littlefs.

It works now. Thanks.

[yamt]

@crafcat7 have you submitted the littlefs patch to the upstream? i don't think it's a good idea to maintain it in nuttx.

[crafcat7]

@crafcat7 have you submitted the littlefs patch to the upstream? i don't think it's a good idea to maintain it in nuttx.

I sorted out the new interfaces for obtaining paths and submitted them here.
littlefs-project/littlefs#976

[yamt]

is this functionality mainly for #11724 ?

[crafcat7]

is this functionality mainly for #11724 ?

The current implementation of filelock still relies on getting the path to the file to determine the target. So if we want to use filelock on a file on littlefs, we need a way to get the path to the target file.
In addition to this, there are implementations such as “fdinfo” that should also rely on getting the path to the file.
Therefore I think this should be a general implementation, which may be used in many functions

[xiaoxiang781216]

is this functionality mainly for #11724 ?

Yes, otherwise we need save path into file handle.