[OpenAFS] Solaris 10u6: ZFS cache?
Tue, 11 Nov 2008 14:18:59 -0500
> I have attached a patch based on Derrick's suggestion to use the
> AFS_CACHE_VNODE_PATH code.
> o There is code in afs/SOLARIS for a Xvfs file system.
> Rather then overloading the osi_UfsOpen, it might be a
> better choice to create a osi_ZfsOpen much like the
> osi_XvfsOpen. Let me know if that would be better,
> and I can rework the patch. It might be possible
> to use VOP_GETATTR to get an inode as even with ZFS
> they to generate inode numbers.
Given that afsd's behavior changes, this is all or none. Not much
reason not to change things in the UfsOpen case.
> o The Solaris vn_open will use the user's CRED, and
> it was found that permission denied was possible,
> so pn_get_buf, lookuppnvp and VOP_OPEN where used
> instead, using the cred of afs_osi_cred.
That seems wise.
> o The ois_DisableAtime routine was trying to update
> the inode. I skipped that part of the code. Is this
> OK or not? Is there another way to update the flag?
That's not ideal but it will work until we find another way.
> o The original patch would set the ainode to a signed
> value, but on Solairs with 64 bit, the ainode was
> defined to be unsigned long. This caused problems
> with if (ainode < 0) and switch (ainode).
> So the patch goes back to using afs_int32 for ainode.
Perhaps we should use values just shy of 0xffffffff.