Update macros from the autotools archive
[urcu.git] / lgpl-relicensing.txt
1 Mathieu Desnoyers
2 May 13th, 2009
3
4 IBM Corporation allowed LGPLv2.1+ licensing of their contribution to the
5 userspace RCU library in a patch submitted on May 8, 2009 from Paul E.
6 McKenney and reviewed by Steven L. Bennett:
7
8 https://lists.lttng.org/pipermail/lttng-dev/2009-May/012835.html
9
10 I (Mathieu Desnoyers) re-implemented ACCESS_ONCE(), likely(), unlikely() and
11 barrier() from scratch without reference to the original code.
12
13 commit id : 2dc5fa0f7cfbfb0a64a7a67b39626650e863f16a
14
15 Bert Wesarg <bert.wesarg@googlemail.com> approved LGPL relicensing of his
16 patch in an email dated May 13, 2009 :
17
18 http://lkml.org/lkml/2009/5/13/16
19
20 xchg() primitives has been rewritten from a MIT-licensed cmpxchg for Intel
21 and powerpc. They are MIT-licensed and therefore usable in LGPL code.
22 This cmpxchg code was obtained from the atomic_ops project:
23
24 http://www.hpl.hp.com/research/linux/atomic_ops/
25
26 I (Mathieu Desnoyers) wrote the remainder of the code.
27
28 The license for the library files in this project was therefore changed to
29 LGPLv2.1 on May 13, 2009, as detailed in LICENSE.
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