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Date: Fri, 30 May 2014 17:36:57 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Thomas Gleixner <tglx@...utronix.de> Cc: LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Lai Jiangshan <laijs@...fujitsu.com> Subject: Re: [patch 2/6] rtmutex: Remove builtin tester On Thu, 22 May 2014 03:25:42 -0000 Thomas Gleixner <tglx@...utronix.de> wrote: > The tester has been broken for quite some time. It's possible to fix > it, but the main reason for having it in the kernel was the lock steal > mechanism in the rtmutex code. That's gone, so we can implement a > stateful correctness tester just via the futex syscall. > > Signed-off-by: Thomas Gleixner <tglx@...utronix.de> > --- > kernel/locking/Makefile | 1 > kernel/locking/rtmutex-tester.c | 420 ------------------ > kernel/locking/rtmutex.c | 2 > kernel/locking/rtmutex_common.h | 22 > lib/Kconfig.debug | 6 > scripts/rt-tester/check-all.sh | 22 > scripts/rt-tester/rt-tester.py | 220 --------- > scripts/rt-tester/t2-l1-2rt-sameprio.tst | 94 ---- > scripts/rt-tester/t2-l1-pi.tst | 77 --- > scripts/rt-tester/t2-l1-signal.tst | 72 --- > scripts/rt-tester/t2-l2-2rt-deadlock.tst | 84 --- > scripts/rt-tester/t3-l1-pi-1rt.tst | 87 --- > scripts/rt-tester/t3-l1-pi-2rt.tst | 88 --- > scripts/rt-tester/t3-l1-pi-3rt.tst | 87 --- > scripts/rt-tester/t3-l1-pi-signal.tst | 93 --- > scripts/rt-tester/t3-l1-pi-steal.tst | 91 --- > scripts/rt-tester/t3-l2-pi.tst | 87 --- > scripts/rt-tester/t4-l2-pi-deboost.tst | 118 ----- > scripts/rt-tester/t5-l4-pi-boost-deboost-setsched.tst | 178 ------- > scripts/rt-tester/t5-l4-pi-boost-deboost.tst | 138 ----- > 20 files changed, 1 insertion(+), 1986 deletions(-) > Missed some: -- Steve diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig index 8249ac9..4e407e0 100644 --- a/arch/parisc/configs/c8000_defconfig +++ b/arch/parisc/configs/c8000_defconfig @@ -241,7 +241,6 @@ CONFIG_LOCKUP_DETECTOR=y CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y CONFIG_PANIC_ON_OOPS=y CONFIG_DEBUG_RT_MUTEXES=y -CONFIG_RT_MUTEX_TESTER=y CONFIG_PROVE_RCU_DELAY=y CONFIG_DEBUG_BLOCK_EXT_DEVT=y CONFIG_LATENCYTOP=y diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig index 33b148f..0ffb08f 100644 --- a/arch/parisc/configs/generic-32bit_defconfig +++ b/arch/parisc/configs/generic-32bit_defconfig @@ -295,7 +295,6 @@ CONFIG_DEBUG_SHIRQ=y CONFIG_DETECT_HUNG_TASK=y CONFIG_TIMER_STATS=y CONFIG_DEBUG_RT_MUTEXES=y -CONFIG_RT_MUTEX_TESTER=y CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_RCU_CPU_STALL_INFO=y diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig index 8df022c..2b3ef70 100644 --- a/arch/s390/configs/default_defconfig +++ b/arch/s390/configs/default_defconfig @@ -574,7 +574,6 @@ CONFIG_DEBUG_SHIRQ=y CONFIG_DETECT_HUNG_TASK=y CONFIG_TIMER_STATS=y CONFIG_DEBUG_RT_MUTEXES=y -CONFIG_RT_MUTEX_TESTER=y CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y CONFIG_PROVE_LOCKING=y CONFIG_LOCK_STAT=y diff --git a/arch/xtensa/configs/iss_defconfig b/arch/xtensa/configs/iss_defconfig index 1493c68..5e922fe 100644 --- a/arch/xtensa/configs/iss_defconfig +++ b/arch/xtensa/configs/iss_defconfig @@ -619,7 +619,6 @@ CONFIG_SCHED_DEBUG=y # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set # CONFIG_DEBUG_RT_MUTEXES is not set -# CONFIG_RT_MUTEX_TESTER is not set # CONFIG_DEBUG_SPINLOCK is not set # CONFIG_DEBUG_MUTEXES is not set # CONFIG_DEBUG_SPINLOCK_SLEEP is not set diff --git a/arch/xtensa/configs/s6105_defconfig b/arch/xtensa/configs/s6105_defconfig index 12a492a..4b900c9 100644 --- a/arch/xtensa/configs/s6105_defconfig +++ b/arch/xtensa/configs/s6105_defconfig @@ -560,7 +560,6 @@ CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE=0 # CONFIG_DEBUG_OBJECTS is not set # CONFIG_DEBUG_SLAB is not set # CONFIG_DEBUG_RT_MUTEXES is not set -# CONFIG_RT_MUTEX_TESTER is not set CONFIG_DEBUG_SPINLOCK=y CONFIG_DEBUG_MUTEXES=y CONFIG_DEBUG_SPINLOCK_SLEEP=y -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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