From b74afe5892ddcc46281a9038563afad78afb48fb Mon Sep 17 00:00:00 2001 From: =?utf8?q?Manuel=20Sch=C3=B6lling?= Date: Mon, 21 Sep 2015 15:48:17 +0530 Subject: [PATCH] misc: sgi-gru: use time_before() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit To be future-proof and for better readability the time comparisons are modified to use time_before() instead of plain, error-prone math. Signed-off-by: Manuel Schölling Acked-by: Dimitri Sivanich Signed-off-by: Sudip Mukherjee Signed-off-by: Greg Kroah-Hartman --- drivers/misc/sgi-gru/grumain.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c index ae16c8cb4f3e..1525870f460a 100644 --- a/drivers/misc/sgi-gru/grumain.c +++ b/drivers/misc/sgi-gru/grumain.c @@ -930,6 +930,7 @@ int gru_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct gru_thread_state *gts; unsigned long paddr, vaddr; + unsigned long expires; vaddr = (unsigned long)vmf->virtual_address; gru_dbg(grudev, "vma %p, vaddr 0x%lx (0x%lx)\n", @@ -954,7 +955,8 @@ again: mutex_unlock(>s->ts_ctxlock); set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(GRU_ASSIGN_DELAY); /* true hack ZZZ */ - if (gts->ts_steal_jiffies + GRU_STEAL_DELAY < jiffies) + expires = gts->ts_steal_jiffies + GRU_STEAL_DELAY; + if (time_before(expires, jiffies)) gru_steal_context(gts); goto again; } -- 2.20.1