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22 lines
886 B
22 lines
886 B
What: /sys/class/dax/ |
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Date: May, 2016 |
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KernelVersion: v4.7 |
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Contact: [email protected] |
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Description: Device DAX is the device-centric analogue of Filesystem |
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DAX (CONFIG_FS_DAX). It allows memory ranges to be |
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allocated and mapped without need of an intervening file |
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system. Device DAX is strict, precise and predictable. |
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Specifically this interface: |
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1. Guarantees fault granularity with respect to a given |
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page size (pte, pmd, or pud) set at configuration time. |
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2. Enforces deterministic behavior by being strict about |
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what fault scenarios are supported. |
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The /sys/class/dax/ interface enumerates all the |
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device-dax instances in the system. The ABI is |
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deprecated and will be removed after 2020. It is |
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replaced with the DAX bus interface /sys/bus/dax/ where |
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device-dax instances can be found under |
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/sys/bus/dax/devices/
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