linux/arch/sh
Maarten Lankhorst a41b56efa7 arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
This will allow me to call functions that have multiple
arguments if fastpath fails. This is required to support ticket
mutexes, because they need to be able to pass an extra argument
to the fail function.

Originally I duplicated the functions, by adding
__mutex_fastpath_lock_retval_arg. This ended up being just a
duplication of the existing function, so a way to test if
fastpath was called ended up being better.

This also cleaned up the reservation mutex patch some by being
able to call an atomic_set instead of atomic_xchg, and making it
easier to detect if the wrong unlock function was previously
used.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: robclark@gmail.com
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20130620113105.4001.83929.stgit@patser
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-26 12:10:55 +02:00
..
boards Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
boot Kbuild: centralize MKIMAGE and cmd_uimage definitions 2012-03-26 15:49:20 +02:00
cchips sh: hd64461: Migrate off of deprecated dynamic IRQ API. 2012-05-18 23:20:09 +09:00
configs arch: Change defconfigs to point to g_mass_storage. 2012-11-08 16:00:52 +02:00
drivers sh: single_open() leaks 2013-05-05 00:11:01 -04:00
include arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not 2013-06-26 12:10:55 +02:00
kernel Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
lib sh: Fix up stack debugging build. 2013-01-14 18:07:36 +09:00
lib64 sh64: Kill off old exception debugging helpers. 2012-06-14 14:12:18 +09:00
math-emu Disintegrate asm/system.h for SH 2012-03-28 18:30:03 +01:00
mm Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
oprofile oprofile, arm/sh: Fix oprofile_arch_exit() linkage issue 2011-12-23 11:58:34 +01:00
tools sh: Add RSK2+SH7269 board 2012-05-10 17:20:01 +09:00
Kconfig Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
Kconfig.cpu arch/sh: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:43:13 -08:00
Kconfig.debug sh: dwarf unwinder depends on SHcompact. 2012-03-30 19:31:22 +09:00
Makefile sh: Setup CROSS_COMPILE at the top 2012-06-13 11:42:13 +09:00