Re: [fuse-devel] [PATCH 01/25] VFS: move attr_kill logic fromnotify_change into helper function

[Miklos Szeredi]

> There's another way to deal with this in NFS and fuse, without having
> to change the API:
> 
>  - remove suid/sgid bits from i_mode, when refreshing the inode attributes
>  - store the removed bits (or the original mode)  in the fs' inode strucure
>  - in ->getattr() restore the original mode into the returned stat
> 
> This way the VFS believes, that the inode does not in fact have the
> suid/sgid bits and so won't call ->setattr() unnecessarily.

Of course this would break exec().  Oh, well.

Miklos
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