From 836ce679c0b5b5040164171afc33753396864b30 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Wed, 17 Jun 2009 16:28:22 -0700 Subject: gru: change resource assignment for kernel threads Change the way GRU resources are assigned for kernel threads. GRU contexts for kernel threads are now allocated on demand and can be stolen by user processes when idle. This allows MPI jobs to use ALL of the GRU resources when the kernel is not using them. Signed-off-by: Jack Steiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-gru/grukdump.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/misc/sgi-gru/grukdump.c') diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c index 27e00931a7b8..7b1bdf3906ba 100644 --- a/drivers/misc/sgi-gru/grukdump.c +++ b/drivers/misc/sgi-gru/grukdump.c @@ -131,7 +131,7 @@ static int gru_dump_context(struct gru_state *gru, int ctxnum, if (cch_locked || !lock_cch) { gts = gru->gs_gts[ctxnum]; - if (gts) { + if (gts && gts->ts_vma) { hdr.pid = gts->ts_tgid_owner; hdr.vaddr = gts->ts_vma->vm_start; } -- cgit