On Wed, May 29, 2002 at 11:00:21PM +0200, Maciej W. Rozycki wrote: > I converted a few flush_cache_all() invocations to __flush_cache_all() > where appropriate late last year, but the function is a bit older. I > think you might dig the linux-kernel list archives for a discussion on the > semantics of flush_cache_all() (it's a nop for many MIPS CPUs) and > friends. The short description in Documentation/cachetlb.txt is a bit > insufficient, I'm afraid. I don't like that function very much; it's sort of a shotgun approach to flushing caches in a part of the kernel that's not too performance relevant. The whole interface sucks, should be replaced by something more finegrained. Ralf