From 46cbf93960e64f313f6e247cbca7afaa50e3ee2c Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 29 Jun 2007 10:57:57 +1000 Subject: [PATCH] [POWERPC] spusched: Catch nosched contexts in spu_deactivate spu_deactivate should never be called for nosched contets. Put in a check so we can print a stacktrace and exit early in case it happes erroneously. Signed-off-by: Christoph Hellwig Signed-off-by: Arnd Bergmann Signed-off-by: Jeremy Kerr Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/cell/spufs/sched.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 69272620a6..a20e4e2885 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -491,6 +491,15 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio) */ void spu_deactivate(struct spu_context *ctx) { + /* + * We must never reach this for a nosched context, + * but handle the case gracefull instead of panicing. + */ + if (ctx->flags & SPU_CREATE_NOSCHED) { + WARN_ON(1); + return; + } + __spu_deactivate(ctx, 1, MAX_PRIO); } -- 2.39.5