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authorChristoph Hellwig <hch@lst.de>2007-06-29 10:57:57 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-03 15:24:45 +1000
commit46cbf93960e64f313f6e247cbca7afaa50e3ee2c (patch)
tree00266a8ca2cdb95b9a62d3b60e6882bcfef2a1f7 /arch/powerpc/platforms/cell/spufs/sched.c
parentea1ae5949d7fcd2e622226ba71741a0f43b6ef0a (diff)
[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 <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>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sched.c')
-rw-r--r--arch/powerpc/platforms/cell/spufs/sched.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 69272620a6b7..a20e4e28858c 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);
}

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