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Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-xen-blkback')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-xen-blkback | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback index 4e7babb3ba1f..fac0f429a869 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkback +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -25,3 +25,22 @@ Description: allocated without being in use. The time is in seconds, 0 means indefinitely long. The default is 60 seconds. + +What: /sys/module/xen_blkback/parameters/buffer_squeeze_duration_ms +Date: December 2019 +KernelVersion: 5.6 +Contact: Maximilian Heyne <mheyne@amazon.de> +Description: + When memory pressure is reported to blkback this option + controls the duration in milliseconds that blkback will not + cache any page not backed by a grant mapping. + The default is 10ms. + +What: /sys/module/xen_blkback/parameters/feature_persistent +Date: September 2020 +KernelVersion: 5.10 +Contact: Maximilian Heyne <mheyne@amazon.de> +Description: + Whether to enable the persistent grants feature or not. Note + that this option only takes effect on newly connected backends. + The default is Y (enable). |