Messages in this thread Patch in this message | | | Date | Tue, 27 Jun 2006 08:46:09 -0400 | From | Sonny Rao <> | Subject | [PATCH] powerpc: fix idr locking in init_new_context |
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We always need to serialize accesses to mmu_context_idr.
I hit this bug when testing with a small number of mmu contexts.
Signed-off-by: Sonny Rao <sonny@burdell.org>
--- a/arch/powerpc/mm/mmu_context_64.c +++ b/arch/powerpc/mm/mmu_context_64.c @@ -44,7 +44,9 @@ again: return err; if (index > MAX_CONTEXT) { + spin_lock(&mmu_context_lock); idr_remove(&mmu_context_idr, index); + spin_unlock(&mmu_context_lock); return -ENOMEM; }
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