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DirectX12 Question that is bothering me.

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Imagine you have n command list that are running and each one of those list is drawing an object with a specific set of textures. Now all of the sudden i decided that i want to map an resource which is been currently used in one of the command list, how can i tell whether the gpu is currently using that resource so i can properly synchronize. Since the only way to synchronize is through the CommandQueue by using a fence does that means in that case whenever i call map would i need to submit all pending command list and wait until the fence is return before mapping. Or i guess another option would be to keep track of which command list the resource belongs too and only flush those commandList. I would like to see what others think.




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