Heiko Carstens cee41ea056 futex: Allow architectures to skip futex_atomic_cmpxchg_inatomic() test ...

commit 03b8c7b623 upstream.

If an architecture has futex_atomic_cmpxchg_inatomic() implemented and there
is no runtime check necessary, allow to skip the test within futex_init().

This allows to get rid of some code which would always give the same result,
and also allows the compiler to optimize a couple of if statements away.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Link: http://lkml.kernel.org/r/20140302120947.GA3641@osiris
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[geert: Backported to v3.10..v3.13]
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

2014-04-13 16:40:26 +02:00

..

calibrate.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

do_mounts_initrd.c

usermodehelper: split remaining calls to call_usermodehelper_fns()

2013-04-30 17:04:06 -07:00

do_mounts_md.c

init: disable sparse checking of the mount.o source files

2012-05-31 17:49:27 -07:00

do_mounts_rd.c

init: disable sparse checking of the mount.o source files

2012-05-31 17:49:27 -07:00

do_mounts.c

initmpfs: use initramfs if rootfstype= or root= specified

2013-09-11 15:59:38 -07:00

do_mounts.h

md: move lots of #include lines out of .h files and into .c

2009-03-31 14:33:13 +11:00

init_task.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

initramfs.c

init, block: try to load default elevator module early during boot

2013-01-18 14:05:56 -08:00

Kconfig

futex: Allow architectures to skip futex_atomic_cmpxchg_inatomic() test

2014-04-13 16:40:26 +02:00

main.c

Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random

2013-10-10 12:31:43 -07:00

Makefile

init_task: Replace CONFIG_HAVE_GENERIC_INIT_TASK

2012-05-05 13:00:46 +02:00

noinitramfs.c

init: mark __user address space on string literals

2010-10-26 16:52:15 -07:00

version.c

proc: Split the namespace stuff out into linux/proc_ns.h

2013-05-01 17:29:39 -04:00