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authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-04-28 00:17:08 +0300
committerJonathan Corbet <corbet@lwn.net>2020-05-05 18:22:22 +0300
commita02dcdf65bcfca1068e9c6d2cbafdab724cfbce9 (patch)
treea5974af76e77059cf2655e434be5e0a82382c4c8 /Documentation/filesystems
parent63526525dd7a9c85786ff9f9592b6f4281ad6171 (diff)
downloadlinux-a02dcdf65bcfca1068e9c6d2cbafdab724cfbce9.tar.xz
docs: filesystems: convert mandatory-locking.txt to ReST
- Add a SPDX header; - Adjust document title; - Some whitespace fixes and new line breaks; - Use notes markups; - Add it to filesystems/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/aecd6259fe9f99b2c2b3440eab6a2b989125e00d.1588021877.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/index.rst1
-rw-r--r--Documentation/filesystems/locks.rst2
-rw-r--r--Documentation/filesystems/mandatory-locking.rst (renamed from Documentation/filesystems/mandatory-locking.txt)25
3 files changed, 18 insertions, 10 deletions
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst
index 64535f57c3ac..df1a474ad9b9 100644
--- a/Documentation/filesystems/index.rst
+++ b/Documentation/filesystems/index.rst
@@ -29,6 +29,7 @@ algorithms work.
fiemap
files
locks
+ mandatory-locking
automount-support
diff --git a/Documentation/filesystems/locks.rst b/Documentation/filesystems/locks.rst
index 10f67fb9ce07..c5ae858b1aac 100644
--- a/Documentation/filesystems/locks.rst
+++ b/Documentation/filesystems/locks.rst
@@ -58,7 +58,7 @@ fcntl(), with all the problems that implies.
---------------------------------------
Mandatory locking, as described in
-'Documentation/filesystems/mandatory-locking.txt' was prior to this release a
+'Documentation/filesystems/mandatory-locking.rst' was prior to this release a
general configuration option that was valid for all mounted filesystems. This
had a number of inherent dangers, not the least of which was the ability to
freeze an NFS server by asking it to read a file for which a mandatory lock
diff --git a/Documentation/filesystems/mandatory-locking.txt b/Documentation/filesystems/mandatory-locking.rst
index a251ca33164a..9ce73544a8f0 100644
--- a/Documentation/filesystems/mandatory-locking.txt
+++ b/Documentation/filesystems/mandatory-locking.rst
@@ -1,8 +1,13 @@
- Mandatory File Locking For The Linux Operating System
+.. SPDX-License-Identifier: GPL-2.0
+
+=====================================================
+Mandatory File Locking For The Linux Operating System
+=====================================================
Andy Walker <andy@lysaker.kvaerner.no>
15 April 1996
+
(Updated September 2007)
0. Why you should avoid mandatory locking
@@ -53,15 +58,17 @@ possible on existing user code. The scheme is based on marking individual files
as candidates for mandatory locking, and using the existing fcntl()/lockf()
interface for applying locks just as if they were normal, advisory locks.
-Note 1: In saying "file" in the paragraphs above I am actually not telling
-the whole truth. System V locking is based on fcntl(). The granularity of
-fcntl() is such that it allows the locking of byte ranges in files, in addition
-to entire files, so the mandatory locking rules also have byte level
-granularity.
+.. Note::
+
+ 1. In saying "file" in the paragraphs above I am actually not telling
+ the whole truth. System V locking is based on fcntl(). The granularity of
+ fcntl() is such that it allows the locking of byte ranges in files, in
+ addition to entire files, so the mandatory locking rules also have byte
+ level granularity.
-Note 2: POSIX.1 does not specify any scheme for mandatory locking, despite
-borrowing the fcntl() locking scheme from System V. The mandatory locking
-scheme is defined by the System V Interface Definition (SVID) Version 3.
+ 2. POSIX.1 does not specify any scheme for mandatory locking, despite
+ borrowing the fcntl() locking scheme from System V. The mandatory locking
+ scheme is defined by the System V Interface Definition (SVID) Version 3.
2. Marking a file for mandatory locking
---------------------------------------