Subject: Re: Use of c_spare field in dumps, accidentally was tomorrow, 1/21 (fwd)
To: Dr. Bill Studenmund <>
From: Jason Thorpe <>
List: tech-kern
Date: 01/21/1999 10:42:27
On Thu, 21 Jan 1999 10:32:17 -0800 (PST) 
 "Dr. Bill Studenmund" <> wrote:

 > Does anyone know of anything which uses the c_spare field of the
 > u_spcl.s_spcl structure, which is declared under
 > /usr/include/protocols/dumprestore.h? We have some local mods which give
 > us 128 extra bytes per inode to deal with, and want to be able to dump
 > them. The c_spare field is defined as:
 > int32_t c_spare[32];        /* reserved for future uses */
 > and so it would be perfect! Unless something else has come along and used
 > this field. :-(

I don't think anyone is using it, and I think it's a good candidate for
dinode_large opaque data.

        -- Jason R. Thorpe <>