From 63526525dd7a9c85786ff9f9592b6f4281ad6171 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 27 Apr 2020 23:17:07 +0200 Subject: [PATCH] docs: filesystems: convert locks.txt to ReST - Add a SPDX header; - Adjust document and section titles; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/467b3f20e63d2640d22599b99229699b5fb79251.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet --- Documentation/filesystems/index.rst | 1 + Documentation/filesystems/{locks.txt => locks.rst} | 12 ++++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) rename Documentation/filesystems/{locks.txt => locks.rst} (93%) diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst index ace804c4c3ab..64535f57c3ac 100644 --- a/Documentation/filesystems/index.rst +++ b/Documentation/filesystems/index.rst @@ -28,6 +28,7 @@ algorithms work. dnotify fiemap files + locks automount-support diff --git a/Documentation/filesystems/locks.txt b/Documentation/filesystems/locks.rst similarity index 93% rename from Documentation/filesystems/locks.txt rename to Documentation/filesystems/locks.rst index 5368690f412e..10f67fb9ce07 100644 --- a/Documentation/filesystems/locks.txt +++ b/Documentation/filesystems/locks.rst @@ -1,4 +1,8 @@ - File Locking Release Notes +.. SPDX-License-Identifier: GPL-2.0 + +========================== +File Locking Release Notes +========================== Andy Walker @@ -6,7 +10,7 @@ 1. What's New? --------------- +============== 1.1 Broken Flock Emulation -------------------------- @@ -25,7 +29,7 @@ anyway (see the file "Documentation/process/changes.rst".) --------------------------- 1.2.1 Typical Problems - Sendmail ---------------------------------- +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Because sendmail was unable to use the old flock() emulation, many sendmail installations use fcntl() instead of flock(). This is true of Slackware 3.0 for example. This gave rise to some other subtle problems if sendmail was @@ -37,7 +41,7 @@ to lock solid with deadlocked processes. 1.2.2 The Solution ------------------- +^^^^^^^^^^^^^^^^^^ The solution I have chosen, after much experimentation and discussion, is to make flock() and fcntl() locks oblivious to each other. Both can exists, and neither will have any effect on the other.