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| -rw-r--r-- | Documentation/ABI/testing/sysfs-class-bdi | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-bdi b/Documentation/ABI/testing/sysfs-class-bdi index a9a2f588a2b7..e9c584db316f 100644 --- a/Documentation/ABI/testing/sysfs-class-bdi +++ b/Documentation/ABI/testing/sysfs-class-bdi @@ -57,6 +57,19 @@ Description: (read-write) +What: /sys/class/bdi/<bdi>/max_ratio_fine +Date: November 2022 +Contact: Stefan Roesch <shr@devkernel.io> +Description: + Allows limiting a particular device to use not more than the + given value of the write-back cache. The value is given as part + of 1 million. This is useful in situations where we want to avoid + one device taking all or most of the write-back cache. For example + in case of an NFS mount that is prone to get stuck, or a FUSE mount + which cannot be trusted to play fair. + + (read-write) + What: /sys/class/bdi/<bdi>/min_bytes Date: October 2022 Contact: Stefan Roesch <shr@devkernel.io> |