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authorJens Axboe <axboe@kernel.dk>2018-08-27 20:27:32 +0300
committerJens Axboe <axboe@kernel.dk>2018-08-27 20:27:32 +0300
commit057d3ccf93a437080c4138cd6d74c4d7cf332131 (patch)
treeca4378c4ee1c2a48a0961076bc3c0c309d22b2e4 /Documentation
parent38cfb5a45ee013bfab5d1ae4c4738815e744b440 (diff)
parent6f2f39ad1a54978394851c05e327419ebeb7227e (diff)
downloadlinux-057d3ccf93a437080c4138cd6d74c4d7cf332131.tar.xz
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')
-rw-r--r--Documentation/ABI/testing/sysfs-driver-xen-blkback10
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.