1 /* elision-unlock.c: Commit an elided pthread lock.
2    Copyright (C) 2013-2021 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 
23 int
__lll_unlock_elision(int * lock,int private)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 libc_hidden_def (__lll_unlock_elision)
35