[RFC v3 05/13] vfs: add two map arrays

From: Zhi Yong Wu Adds two map arrays which contains a lot of list and is used to efficiently look up the data temperature of a file or its ranges. In each list of map arrays, the array node will keep track of temperature info. Signed-off-by: Zhi Yong Wu --- fs/hot_tracking.c|

[RFC v3 05/13] vfs: add two map arrays

From: Zhi Yong Wu wu...@linux.vnet.ibm.com Adds two map arrays which contains a lot of list and is used to efficiently look up the data temperature of a file or its ranges. In each list of map arrays, the array node will keep track of temperature info. Signed-off-by: Zhi Yong Wu