linux-kernel - [PATCH 0/4] revocable: Fix reported race conditions

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Message-ID: <20260129143733.45618-1-tzungbi@kernel.org>
Date: Thu, 29 Jan 2026 14:37:29 +0000
From: Tzung-Bi Shih <tzungbi@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Danilo Krummrich <dakr@...nel.org>
Cc: Jonathan Corbet <corbet@....net>,
	Shuah Khan <shuah@...nel.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Jason Gunthorpe <jgg@...dia.com>,
	Johan Hovold <johan@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	chrome-platform@...ts.linux.dev,
	tzungbi@...nel.org
Subject: [PATCH 0/4] revocable: Fix reported race conditions

The 1st patch fixes the issue reported in [1].  The 2nd patch adds KUnit
test for the cases.

The 3rd patch fixes the issue reported in [2].  The 4th patch adds KUnit
test for one of the cases.

[1] https://lore.kernel.org/all/aXdy-b3GOJkzGqYo@hovoldconsulting.com/
[2] https://lore.kernel.org/all/20260124170535.11756-4-johan@kernel.org/

Tzung-Bi Shih (4):
  revocable: Fix races in revocable_alloc() using RCU
  revocable: Add KUnit test for provider lifetime races
  revocable: fix SRCU index corruption by requiring caller-provided
    storage
  revocable: Add KUnit test for concurrent access

 .../driver-api/driver-model/revocable.rst     |  17 +-
 drivers/base/revocable.c                      | 118 +++++-----
 drivers/base/revocable_test.c                 | 216 +++++++++++++++---
 include/linux/revocable.h                     |  60 +++--
 .../revocable/test_modules/revocable_test.c   |  54 ++---
 5 files changed, 300 insertions(+), 165 deletions(-)

-- 
2.53.0.rc1.217.geba53bf80e-goog