Add comments to 9pfs.h file

[DeliaPavel]

Prerequisite checklist

• Read the contribution guidelines regarding submitting new changes to the project;
• Tested your changes against relevant architectures and platforms;
• Ran the checkpatch.pl on your commit series before opening this PR;
• Updated relevant documentation.

Base target

• Architecture(s): [e.g. x86_64 or N/A]
• Platform(s): [e.g. kvm, xen or N/A]
• Application(s): [e.g. app-python3 or N/A]

Additional configuration

Description of changes

[razvand]

Hi, @DeliaPavel. This looks good. See my comments.

[StefanJum]

Thanks @DeliaPavel, see the few comments.

[StefanJum]

Looks good @DeliaPavel, see how you can solve the comments from @razvand (I left some additions there) and then I think we can approve this.

[StefanJum]

Just few very minor comments @DeliaPavel, thanks.

[unikraft-bot]

❗ Checkpatch failed

Beep boop! I ran Unikraft's checkpatch.pl support script on your pull request but it encountered errors:

SHA	commit	checkpatch
91a01ee	Add comments to 9pfs.h file	❌

Truncated logs starting from first error 91a01ee:

ERROR:UNIKRAFT_SUBJECT_FORMAT: Patch subject line does not follow Unikraft scheme: '[Selector]/[Component]: [Short message]'
#4: 
Subject: [PATCH] Add comments to 9pfs.h file

total: 1 errors, 0 warnings, 167 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

/tmp/build/a53d4c5b/patches/0001-Add-comments-to-9pfs.h-file.patch has style problems, please review.

NOTE: Ignored message types: ASSIGN_IN_IF FILE_PATH_CHANGES NEW_TYPEDEFS OBSOLETE

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

---

View complete logs | Learn more about Unikraft's coding style and contribution guidelines.

[StefanJum]

Change the commit message to match the guidelines (lib/9pfs: Add comments to 9pfs.h file).
I'll approve it after that.

[StefanJum]

All good now, thanks a lot @DeliaPavel.
I'll leave the review tag after @razvand takes another look.

[razvand]

This looks great. Thanks, @DeliaPavel.

Reviewed-by: Razvan Deaconescu razvand@unikraft.io
Approved-by: Razvan Deaconescu razvand@unikraft.io