Now that things have settled down (actually I've been busy with the
Ultra port these past few weeks, but I've been watching this thread
carefully, don't worry)...
Simply appling your patch should work. And IMHO you've found a
solution. I've applied you patch over my patched kernel version
... after compiling and testing the system show's a real
performance win on high _and_ low system load. You maybe found
it's a (the?) real solution: Why shrink_mmap() should reference a
page which is not used by shrink_mmap() it's self?
Very nice, now time for me to scrutinize the total resulting changes.
Can someone (Werner?) put together a complete patch for the buffer
cache etc. performance fixes, cleanly against pre-2.0.31-2, so that I
can have them for breakfast tomorrow? 8-)
Later,
David "Sparc" Miller
davem@caip.rutgers.edu