From c82513e513556a04f81aa511cd890acd23349c48 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Thu, 26 Apr 2012 13:12:27 +0200 Subject: [PATCH] sched: Change rq->nr_running to unsigned int Since there's a PID space limit of 30bits (see futex.h:FUTEX_TID_MASK) and allocating that many tasks (assuming a lower bound of 2 pages per task) would still take 8T of memory it seems reasonable to say that unsigned int is sufficient for rq->nr_running. When we do get anywhere near that amount of tasks I suspect other things would go funny, load-balancer load computations would really need to be hoisted to 128bit etc. So save a few bytes and convert rq->nr_running and friends to unsigned int. Suggested-by: Ingo Molnar Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-y3tvyszjdmbibade5bw8zl81@git.kernel.org Signed-off-by: Ingo Molnar --- Reading git-format-patch failed