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[POWERPC] spusched: Catch nosched contexts in spu_deactivate

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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>
This commit is contained in:
Christoph Hellwig 2007-06-29 10:57:57 +10:00 committed by Paul Mackerras
parent ea1ae5949d
commit 46cbf93960
1 changed files with 9 additions and 0 deletions
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9
arch/powerpc/platforms/cell/spufs/sched.c
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@ -491,6 +491,15 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio)
*/ */
void spu_deactivate(struct spu_context *ctx) 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); __spu_deactivate(ctx, 1, MAX_PRIO);
} }