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authorLuke Browning <lukebrowning@us.ibm.com>2008-06-06 11:26:54 +0800
committerJeremy Kerr <jk@ozlabs.org>2008-07-09 10:13:40 +1000
commit2442a8ba5abe2c27c572bc522da1c33df98c6ec7 (patch)
tree0b3f40533af215f2116e024ccfb488d8890c9517 /arch
parent46deed69b34d0aa6065e92ad79685e103d4ccd35 (diff)
downloadlinaro-lsk-2442a8ba5abe2c27c572bc522da1c33df98c6ec7.tar.gz
powerpc/spufs: don't extend time time slice if context is not in spu_run
An spu context shouldn't get an extra tick if the time slice code couldn't find something else to run. This means contexts that are not within spu_run (ie, SPU_SCHED_SPU_RUN is cleared) will not receive extra ticks while we have no other contexts waiting. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/cell/spufs/sched.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index e929e70a84e..afb92d4fbcf 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -899,7 +899,8 @@ static noinline void spusched_tick(struct spu_context *ctx)
spu_add_to_rq(ctx);
} else {
spu_context_nospu_trace(spusched_tick__newslice, ctx);
- ctx->time_slice++;
+ if (!ctx->time_slice)
+ ctx->time_slice++;
}
out:
spu_release(ctx);