add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/dax/dax-private.h
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@@ -52,7 +52,8 @@
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  * @region - parent region
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  * @dax_dev - core dax functionality
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  * @target_node: effective numa node if dev_dax memory range is onlined
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- * @id: ida allocated id
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+ * @dyn_id: is this a dynamic or statically created instance
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+ * @id: ida allocated id when the dax_region is not static
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  * @ida: mapping id allocator
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  * @dev - device core
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  * @pgmap - pgmap for memmap setup / lifetime (driver owned)
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@@ -64,6 +65,7 @@
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 	struct dax_device *dax_dev;
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 	unsigned int align;
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 	int target_node;
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+	bool dyn_id;
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 	int id;
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 	struct ida ida;
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 	struct device dev;