From d141ea44c1d901c27f61865808e8c5f9801b2606 Mon Sep 17 00:00:00 2001
From: Nikolaus Rath <Nikolaus@rath.org>
Date: Sun, 6 Aug 2017 11:06:42 +0200
Subject: Re-enabled writeback cache.

Fixes: #72.
---
 README.rst | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'README.rst')

diff --git a/README.rst b/README.rst
index 91c3ef5..1ec2d72 100644
--- a/README.rst
+++ b/README.rst
@@ -116,6 +116,16 @@ individual files when seen through an SSHFS mount, i.e. they will
 appear to have different inodes and an *st_nlink* value of 1.
 
 
+O_APPEND
+~~~~~~~~
+
+When writeback caching is enabled, SSHFS cannot reliably support the
+``O_APPEND`` open flag and thus signals an error on open.  To enable
+support for unreliable ``O_APPEND`` (which may overwrite data if the
+file changes on the server at a bad time), mount the file system with
+``-o unreliable_append``.
+
+
 Getting Help
 ------------
 
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