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Commit 3f04ba85 authored by Tejun Heo's avatar Tejun Heo
Browse files

vmalloc: fix use of non-existent percpu variable in put_cpu_var() 



vmalloc used non-existent percpu variable vmap_cpu_blocks instead of
the intended vmap_block_queue.  This went unnoticed because
put_cpu_var() didn't evaluate the parameter.  Fix it.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Cc: Nick Piggin <npiggin@suse.de>
parent dec54bf5

mm/vmalloc.c

+2 −2
Original line number Diff line number Diff line
@@ -760,7 +760,7 @@ static struct vmap_block *new_vmap_block(gfp_t gfp_mask) 
	spin_lock(&vbq->lock);

	list_add(&vb->free_list, &vbq->free);

	spin_unlock(&vbq->lock);

	put_cpu_var(vmap_cpu_blocks);

	put_cpu_var(vmap_block_queue);



	return vb;

}
@@ -825,7 +825,7 @@ static void *vb_alloc(unsigned long size, gfp_t gfp_mask) 
		}

		spin_unlock(&vb->lock);

	}

	put_cpu_var(vmap_cpu_blocks);

	put_cpu_var(vmap_block_queue);

	rcu_read_unlock();



	if (!addr) {