MAS_WARN_ON() will provide more information on the maple state and can
be more useful for debugging. Use this version of WARN_ON() in the
debugging code when storing to the tree.
Update the printk to a pr_warn(), but this will only be printed when
maple tree debug is enabled anyways.
Making all print statements into one will keep them together on a busy
terminal.
Signed-off-by: Liam R. Howlett <[email protected]>
Reviewed-by: Sergey Senozhatsky <[email protected]>
---
mm/internal.h | 21 ++++++++++-----------
1 file changed, 10 insertions(+), 11 deletions(-)
diff --git a/mm/internal.h b/mm/internal.h
index 8d1a8bd001247..644fa8b761f5a 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1047,18 +1047,17 @@ static inline void vma_iter_store(struct vma_iterator *vmi,
{
#if defined(CONFIG_DEBUG_VM_MAPLE_TREE)
- if (WARN_ON(vmi->mas.node != MAS_START && vmi->mas.index > vma->vm_start)) {
- printk("%lu > %lu\n", vmi->mas.index, vma->vm_start);
- printk("store of vma %lu-%lu", vma->vm_start, vma->vm_end);
- printk("into slot %lu-%lu", vmi->mas.index, vmi->mas.last);
- vma_iter_dump_tree(vmi);
+ if (MAS_WARN_ON(&vmi->mas, vmi->mas.node != MAS_START &&
+ vmi->mas.index > vma->vm_start)) {
+ pr_warn("%lx > %lx\n store vma %lx-%lx\n into slot %lx-%lx\n",
+ vmi->mas.index, vma->vm_start, vma->vm_start,
+ vma->vm_end, vmi->mas.index, vmi->mas.last);
}
- if (WARN_ON(vmi->mas.node != MAS_START && vmi->mas.last < vma->vm_start)) {
- printk("%lu < %lu\n", vmi->mas.last, vma->vm_start);
- printk("store of vma %lu-%lu", vma->vm_start, vma->vm_end);
- printk("into slot %lu-%lu", vmi->mas.index, vmi->mas.last);
- mt_dump(vmi->mas.tree, mt_dump_hex);
- vma_iter_dump_tree(vmi);
+ if (MAS_WARN_ON(&vmi->mas, vmi->mas.node != MAS_START &&
+ vmi->mas.last < vma->vm_start)) {
+ pr_warn("%lx < %lx\nstore vma %lx-%lx\ninto slot %lx-%lx\n",
+ vmi->mas.last, vma->vm_start, vma->vm_start, vma->vm_end,
+ vmi->mas.index, vmi->mas.last);
}
#endif
--
2.39.2