Bug 429720

Summary:	mutex_lock is now unavailable to non-GPL kernel modules
Product:	[Fedora] Fedora	Reporter:	Simon Wilkinson <simon>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	9
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:	F9	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-06-30 20:07:24 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Simon Wilkinson 2008-01-22 17:31:43 UTC

Description of problem:

The Fedora kernel is built with CONFIG_DEBUG_LOCK_ALLOC, which redefines mutex_lock as 
mutex_lock_nested. mutex_lock is available to all users, but mutex_lock_nested is 
EXPORT_SYMBOL_GPL, making it impossible to compile open source, but non-GPL, kernel modules 
against the standard kernel.

Version-Release number of selected component (if applicable):
2.6.24-0.157.rc8.fc9

How reproducible:
Build a non-GPL kernel module which attempts to call mutex_lock()


Steps to Reproduce:
1.
2.
3.
  
Actual results:
modpost complains about the use of mutex_lock_nested()

Expected results:
Module compiles successfully

Additional info:

Comment 1 Bug Zapper 2008-05-14 04:50:18 UTC

Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping