tree e8931edb38a4ef3b7eb9e5ec7d25f7128e049994
parent 476d139c218e44e045e4bc6d4cc02b010b343939
author Nick Piggin <nickpiggin@yahoo.com.au> 1119736650 -0700
committer Linus Torvalds <torvalds@ppc970.osdl.org> 1119741884 -0700

[PATCH] sched: relax pinned balancing

The maximum rebalance interval allowed by the multiprocessor balancing
backoff is often not large enough to handle corner cases where there are
lots of tasks pinned on a CPU.  Suresh reported:

	I see system livelock's if for example I have 7000 processes
	pinned onto one cpu (this is on the fastest 8-way system I
	have access to).

After this patch, the machine is reported to go well above this number.

Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>