blob: 4e7babb3ba1fecc673018253d4adbb860e0cb8a4 [file] [log] [blame]
Konrad Rzeszutek Wilk1d199652013-06-04 09:32:41 -04001What: /sys/module/xen_blkback/parameters/max_buffer_pages
2Date: March 2013
3KernelVersion: 3.11
4Contact: Roger Pau Monné <roger.pau@citrix.com>
5Description:
6 Maximum number of free pages to keep in each block
7 backend buffer.
8
9What: /sys/module/xen_blkback/parameters/max_persistent_grants
10Date: March 2013
11KernelVersion: 3.11
12Contact: Roger Pau Monné <roger.pau@citrix.com>
13Description:
14 Maximum number of grants to map persistently in
15 blkback. If the frontend tries to use more than
16 max_persistent_grants, the LRU kicks in and starts
17 removing 5% of max_persistent_grants every 100ms.
Juergen Gross973e5402018-08-13 16:01:10 +020018
19What: /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds
20Date: August 2018
21KernelVersion: 4.19
22Contact: Roger Pau Monné <roger.pau@citrix.com>
23Description:
24 How long a persistent grant is allowed to remain
25 allocated without being in use. The time is in
26 seconds, 0 means indefinitely long.
27 The default is 60 seconds.