Commit f86c9747 authored Jun 27, 2006 by Sonny Rao Committed by Paul Mackerras Jun 29, 2006

[POWERPC] Fix idr locking in init_new_context



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>
Signed-off-by: Paul Mackerras <paulus@samba.org>

parent 975b3658

arch/powerpc/mm/mmu_context_64.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}