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| author |   Jens Axboe <axboe@kernel.dk> | 2018-08-27 11:27:32 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-08-27 11:27:32 -0600 |
| commit | 057d3ccf93a437080c4138cd6d74c4d7cf332131 (patch) | |
| tree | ca4378c4ee1c2a48a0961076bc3c0c309d22b2e4 /Documentation/ABI | |
| parent | blk-wbt: improve waking of tasks (diff) | |
| parent | xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring (diff) | |
| download | linux-dev-057d3ccf93a437080c4138cd6d74c4d7cf332131.tar.xz linux-dev-057d3ccf93a437080c4138cd6d74c4d7cf332131.zip | |
Merge branch 'stable/for-jens-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus
Pull Xen block driver fixes from Konrad:
"Fix for flushing out persistent pages at a deterministic rate"
* 'stable/for-jens-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring
xen/blkback: move persistent grants flags to bool
xen/blkfront: reorder tests in xlblk_init()
xen/blkfront: cleanup stale persistent grants
xen/blkback: don't keep persistent grants too long
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-xen-blkback | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback index 8bb43b66eb55..4e7babb3ba1f 100644 --- a/Documentation/ABI/testing/sysfs-driver-xen-blkback +++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback @@ -15,3 +15,13 @@ Description: blkback. If the frontend tries to use more than max_persistent_grants, the LRU kicks in and starts removing 5% of max_persistent_grants every 100ms. + +What: /sys/module/xen_blkback/parameters/persistent_grant_unused_seconds +Date: August 2018 +KernelVersion: 4.19 +Contact: Roger Pau Monné <roger.pau@citrix.com> +Description: + How long a persistent grant is allowed to remain + allocated without being in use. The time is in + seconds, 0 means indefinitely long. + The default is 60 seconds. |