From: Yan, Zheng <zyan@redhat.com>
Date: Wed, 27 Nov 2019 06:44:05 +0000 (+0800)
Subject: doc: add description for fuse_disable_pagecache
X-Git-Tag: v15.1.0~667^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=eb57c3b6f20ad031946f7380b0b8c2077f7f0e50;p=ceph.git

doc: add description for fuse_disable_pagecache

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Fixes: https://tracker.ceph.com/issues/16300
---

diff --git a/doc/cephfs/client-config-ref.rst b/doc/cephfs/client-config-ref.rst
index 931756446e50..55820a4591e4 100644
--- a/doc/cephfs/client-config-ref.rst
+++ b/doc/cephfs/client-config-ref.rst
@@ -183,6 +183,12 @@
 :Type: Integer
 :Default: ``0``
 
+``fuse disable pagecache``
+
+:Description: If set to ``true``, kernel page cache is disabled for ceph-fuse mount. Because when multiple clients read/write to a file at the same time, reader may get stale data from page cache. (Due to limitation of fuse, ceph-fuse can't disable page cache dynamically)
+:Type: Boolean
+:Default: ``false``
+
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