Re: XFS dmapi: dm_path_to_handle fails if the path is a directory

[John Groves <John@Groves.net>]

Vlad Apostolov wrote:

> Hi John,
>
> I did try this on my dmapi filesystem:
>
> emu:/mnt/scratch1/dmapi_test # mkdir -p x/y/z
> emu:/mnt/scratch1/dmapi_test # 
> /home/vapo/isms/xfs-cmds/xfstests/dmapi/src/suite1/cmd/path_to_handle x/y
> 5d1111a90e4800000e00000003000000d903400000000000
> emu:/mnt/scratch1/dmapi_test # mv x/y x/w
> emu:/mnt/scratch1/dmapi_test # 
> /home/vapo/isms/xfs-cmds/xfstests/dmapi/src/suite1/cmd/path_to_handle x/w
> 5d1111a90e4800000e00000003000000d903400000000000
> emu:/mnt/scratch1/dmapi_test #
>
> I also tried path_to_handle with relative path to a directory it 
> worked fine too. When you say
> dm_path_to_handle fails, what is the error returned?
>
> Regards,
> Vlad
>

Vlad,

This was my bad -- I need to go back to programming school ;-).

The function in question was dealing in mount-point-relative paths, not 
full paths, and I didn't notice the distinction.  Passing a full path to 
dm_path_to_handle fixed it.  As for thinking it behaved differently for 
a directory than for a file -- I've been smoking a batch of bad crack 
;-).  Calling dm_path_to_handle also failed with relative paths to files 
-- I just didn't notice because it wasn't fatal on that code path.

Thanks for responding and looking into it, though.

Regards,
John