Messages in this thread |  | | | Date | Mon, 16 Apr 2012 06:31:48 -0400 | | From | Richard Yao <> | | Subject | How do I detect a block device is being used as swap inside its request queue handler? |
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Dear Linus Torvalds et al,
I am having some trouble with an out of tree module for a virtual block device driver. I need to disable the direct reclaim path when the device is used as swap. I cannot see a way to detect that the device is being used as swap, so I am currently disabling it unconditionally.
Is there a clean way to detect that the block device is being used as swap? I am not subscribed to the list, so please CC replies to me.
Yours truly, Richard Yao
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