[POWERPC] spufs: don't (ab)use SCHED_IDLE
commit 4ef11014 introduced a usage of SCHED_IDLE to detect when
a context is within spu_run.
Instead of SCHED_IDLE (which has other meaning), add a flag to
sched_flags to tell if a context should be running.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index 6221968..cac69e1 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -220,6 +220,7 @@
}
}
+ set_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags);
return 0;
}
@@ -234,7 +235,7 @@
*npc = ctx->ops->npc_read(ctx);
spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED);
- ctx->policy = SCHED_IDLE;
+ clear_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags);
spu_release(ctx);
if (signal_pending(current))
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 5d5f680..00528ef 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -867,7 +867,7 @@
if (ctx->policy == SCHED_FIFO)
goto out;
- if (--ctx->time_slice && ctx->policy != SCHED_IDLE)
+ if (--ctx->time_slice && test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags))
goto out;
spu = ctx->spu;
@@ -877,7 +877,7 @@
new = grab_runnable_context(ctx->prio + 1, spu->node);
if (new) {
spu_unschedule(spu, ctx);
- if (ctx->policy != SCHED_IDLE)
+ if (test_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags))
spu_add_to_rq(ctx);
} else {
spu_context_nospu_trace(spusched_tick__newslice, ctx);
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 2c2fe3c..cdc5151 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -44,6 +44,7 @@
enum {
SPU_SCHED_NOTIFY_ACTIVE,
SPU_SCHED_WAS_ACTIVE, /* was active upon spu_acquire_saved() */
+ SPU_SCHED_SPU_RUN, /* context is within spu_run */
};
struct spu_context {