Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=46cbf93960e64f313f6e247cbca7afaa50e3ee2c
Commit: 46cbf93960e64f313f6e247cbca7afaa50e3ee2c
Parent: ea1ae5949d7fcd2e622226ba71741a0f43b6ef0a
Author: Christoph Hellwig <[EMAIL PROTECTED]>
AuthorDate: Fri Jun 29 10:57:57 2007 +1000
Committer: Paul Mackerras <[EMAIL PROTECTED]>
CommitDate: Tue Jul 3 15:24:45 2007 +1000
[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 <[EMAIL PROTECTED]>
Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]>
Signed-off-by: Jeremy Kerr <[EMAIL PROTECTED]>
Signed-off-by: Paul Mackerras <[EMAIL PROTECTED]>
---
arch/powerpc/platforms/cell/spufs/sched.c | 9 +++++++++
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 6927262..a20e4e2 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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