diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/elision-unlock.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/elision-unlock.c | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c b/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c deleted file mode 100644 index e3fe58e3f1..0000000000 --- a/sysdeps/unix/sysv/linux/powerpc/elision-unlock.c +++ /dev/null @@ -1,43 +0,0 @@ -/* elision-unlock.c: Commit an elided pthread lock. - Copyright (C) 2015-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include "pthreadP.h" -#include "lowlevellock.h" -#include "htm.h" - -int -__lll_unlock_elision (int *lock, short *adapt_count, int pshared) -{ - /* When the lock was free we're in a transaction. */ - if (*lock == 0) - __libc_tend (0); - else - { - /* Update adapt_count in the critical section to prevent a - write-after-destroy error as mentioned in BZ 20822. The - following update of adapt_count has to be contained within - the critical region of the fall-back lock in order to not violate - the mutex destruction requirements. */ - short __tmp = atomic_load_relaxed (adapt_count); - if (__tmp > 0) - atomic_store_relaxed (adapt_count, __tmp - 1); - - lll_unlock ((*lock), pshared); - } - return 0; -} |