Understanding fstat call in streams_xattr

[Ralph Boehme]

On 6/21/24 6:32 AM, Varun Mittal via samba-technical wrote:
> Why is there -1 in the result ?
> If I simply remove this -1, I was able to get setxattr to work

that looks like the place where we're stripping off the trailing nul 
byte which in the past was required to have in order to implement 
zero-bytes sized streams with an xattr backend when in the past xattrs 
didn't allow for 0-byte sized xattrs, so we had to store an empty byte.

-slow

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