linux-kernel - [PATCH tip/core/rcu 03/10] docs: RCU: Convert lockdep.txt to ReST

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Date:   Mon, 22 Jun 2020 17:09:40 -0700
From:   paulmck@...nel.org
To:     rcu@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, kernel-team@...com, mingo@...nel.org,
        jiangshanlai@...il.com, dipankar@...ibm.com,
        akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
        josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
        rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com,
        fweisbec@...il.com, oleg@...hat.com, joel@...lfernandes.org,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "Paul E . McKenney" <paulmck@...nel.org>
Subject: [PATCH tip/core/rcu 03/10] docs: RCU: Convert lockdep.txt to ReST

From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>

- Add a SPDX header;
- Adjust document title;
- Mark literal blocks as such;
- Add it to RCU/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
Signed-off-by: Paul E. McKenney <paulmck@...nel.org>
---
 Documentation/RCU/index.rst                    |  1 +
 Documentation/RCU/{lockdep.txt => lockdep.rst} | 12 ++++++++----
 2 files changed, 9 insertions(+), 4 deletions(-)
 rename Documentation/RCU/{lockdep.txt => lockdep.rst} (96%)

diff --git a/Documentation/RCU/index.rst b/Documentation/RCU/index.rst
index 430a371..fa7a2a8 100644
--- a/Documentation/RCU/index.rst
+++ b/Documentation/RCU/index.rst
@@ -11,6 +11,7 @@ RCU concepts
 
    arrayRCU
    checklist
+   lockdep
    lockdep-splat
    rcubarrier
    rcu_dereference
diff --git a/Documentation/RCU/lockdep.txt b/Documentation/RCU/lockdep.rst
similarity index 96%
rename from Documentation/RCU/lockdep.txt
rename to Documentation/RCU/lockdep.rst
index 89db949e..f1fc8ae 100644
--- a/Documentation/RCU/lockdep.txt
+++ b/Documentation/RCU/lockdep.rst
@@ -1,4 +1,8 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========================
 RCU and lockdep checking
+========================
 
 All flavors of RCU have lockdep checking available, so that lockdep is
 aware of when each task enters and leaves any flavor of RCU read-side
@@ -8,7 +12,7 @@ tracking to include RCU state, which can sometimes help when debugging
 deadlocks and the like.
 
 In addition, RCU provides the following primitives that check lockdep's
-state:
+state::
 
 	rcu_read_lock_held() for normal RCU.
 	rcu_read_lock_bh_held() for RCU-bh.
@@ -63,7 +67,7 @@ checking of rcu_dereference() primitives:
 The rcu_dereference_check() check expression can be any boolean
 expression, but would normally include a lockdep expression.  However,
 any boolean expression can be used.  For a moderately ornate example,
-consider the following:
+consider the following::
 
 	file = rcu_dereference_check(fdt->fd[fd],
 				     lockdep_is_held(&files->file_lock) ||
@@ -82,7 +86,7 @@ RCU read-side critical sections, in case (2) the ->file_lock prevents
 any change from taking place, and finally, in case (3) the current task
 is the only task accessing the file_struct, again preventing any change
 from taking place.  If the above statement was invoked only from updater
-code, it could instead be written as follows:
+code, it could instead be written as follows::
 
 	file = rcu_dereference_protected(fdt->fd[fd],
 					 lockdep_is_held(&files->file_lock) ||
@@ -105,7 +109,7 @@ false and they are called from outside any RCU read-side critical section.
 
 For example, the workqueue for_each_pwq() macro is intended to be used
 either within an RCU read-side critical section or with wq->mutex held.
-It is thus implemented as follows:
+It is thus implemented as follows::
 
 	#define for_each_pwq(pwq, wq)
 		list_for_each_entry_rcu((pwq), &(wq)->pwqs, pwqs_node,
-- 
2.9.5