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| author | Christoph Hellwig <hch@lst.de> | 2007-06-29 10:57:58 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-07-03 15:24:45 +1000 |
| commit | df09cf3e2cd597d373f3a6046df0e0a50881ea44 (patch) | |
| tree | 40b30ef28a0ec1b7cc8ab153cea17dee601588b1 | |
| parent | 46cbf93960e64f313f6e247cbca7afaa50e3ee2c (diff) | |
| download | linux-df09cf3e2cd597d373f3a6046df0e0a50881ea44.tar.gz linux-df09cf3e2cd597d373f3a6046df0e0a50881ea44.tar.bz2 linux-df09cf3e2cd597d373f3a6046df0e0a50881ea44.zip | |
[POWERPC] spusched: No preemption for nosched contexts
And last but not least we need to make sure the scheduler tick never
preempts a nosched context.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index a20e4e28858c..7bb5229b1e3c 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -522,7 +522,12 @@ void spu_yield(struct spu_context *ctx) static void spusched_tick(struct spu_context *ctx) { - if (ctx->policy == SCHED_FIFO || --ctx->time_slice) + if (ctx->flags & SPU_CREATE_NOSCHED) + return; + if (ctx->policy == SCHED_FIFO) + return; + + if (--ctx->time_slice) return; /* |