Andrew Morton <akpm@xxxxxxxx> wrote: > > Modules that might depend on fscache need to know that it's there, > > In theory, module A isn't supposed to care whether module B was configured, > because module B might be compiled separately, or dowloaded from elsewhere > or whatever. In this case it's sort of necessary - unless you're suggesting I make FS-Cache mandatory... The problem is that I don't want NFS or whatever to be carrying around the cookie pointers if FS-Cache isn't compiled as that saves memory. But that involves conditionally changing the composition of structures, something that's most clearly done with cpp-conditionals. David
