How does the page fault handler know where to get the 4K bytes?
问题 I mean, which file and what's the offset into the file? The page fault handler need to copy 4K bytes from there into the physical RAM. ----------------------EDIT---------------------------- I found out that vm_file in vm_area_struct was just what I was looking for. 回答1: I found out that vm_file in vm_area_struct was just what I was looking for. – xiaokaoy 来源: https://stackoverflow.com/questions/38850533/how-does-the-page-fault-handler-know-where-to-get-the-4k-bytes