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author	Dominik Vogt <vogt@linux.vnet.ibm.com>
	Fri, 9 May 2014 14:58:46 +0000 (16:58 +0200)
committer	Andreas Krebbel <krebbel@linux.vnet.ibm.com>
	Fri, 9 May 2014 14:58:46 +0000 (16:58 +0200)
commit	5a414ff70c3a45e52b5f5c0741bd459a84cf56b8
tree	036ad6a707ea587149cb057f3e41b7bdd086cbdd	tree
parent	f63c86fed0ddf38f53de486c5ec537455c00bd52	commit \| diff

S/390: Port of lock elision to System/z

Added support for TX lock elision of pthread mutexes on s390 and
s390x.  This may improve lock scaling of existing programs on TX
capable systems.  The lock elision code is only built with
--enable-lock-elision=yes and then requires a GCC version supporting
the TX builtins.  With lock elision default mutexes are elided via
__builtin_tbegin, if the cpu supports transactions. By default lock
elision is not enabled and the elision code is not built.

21 files changed:

ChangeLog		diff \| blob \| blame \| history
NEWS		diff \| blob \| blame \| history
config.make.in		diff \| blob \| blame \| history
configure		diff \| blob \| blame \| history
configure.ac		diff \| blob \| blame \| history
nptl/sysdeps/unix/sysv/linux/s390/Makefile	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h		diff \| blob \| blame \| history
nptl/sysdeps/unix/sysv/linux/s390/elision-conf.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/elision-conf.h	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/elision-lock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/elision-timed.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/elision-trylock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/elision-unlock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/force-elision.h	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h		diff \| blob \| blame \| history
nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_cond_lock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_lock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_timedlock.c	[new file with mode: 0644]	blob
nptl/sysdeps/unix/sysv/linux/s390/pthread_mutex_trylock.c	[new file with mode: 0644]	blob
sysdeps/s390/configure		diff \| blob \| blame \| history
sysdeps/s390/configure.ac		diff \| blob \| blame \| history

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