1/* elision-unlock.c: Commit an elided pthread lock.
2 Copyright (C) 2013-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include "pthreadP.h"
20#include "lowlevellock.h"
21#include "hle.h"
22
23int
24__lll_unlock_elision(int *lock, int private)
25{
26 /* When the lock was free we're in a transaction.
27 When you crash here you unlocked a free lock. */
28 if (*lock == 0)
29 _xend();
30 else
31 lll_unlock ((*lock), private);
32 return 0;
33}
34