[PATCH RFC] rtmutex: Permit rt_mutex_unlock() to be invoked with irqs disabled

Because rcu_read_unlock() can be invoked with interrupts disabled, it can in turn invoke rt_mutex_unlock() with interrupts disabled. This situation results in lockdep splats (https://lkml.org/lkml/2011/7/7/362) because the rt_mutex structure's ...

Message posted on the July 19th, 2011 - 4:20 PM ET

linux-next: build warning after merge of the rcu tree

Hi Paul, After merging the rcu tree, today's linux-next build (powerpc ppc64_defconfig) produced this warning: kernel/rtmutex.c: In function '__rt_mutex_slowlock': kernel/rtmutex.c:605:3: warning: suggest parentheses around assignment used as ...

Message posted on the August 24th, 2011 - 12:30 AM ET

[PATCH tip/core/rcu 0/55] Preview of RCU changes for 3.2

Hello! This patchset adds RCU event tracing, improved diagnostics and documentation, and fixes a number of bugs, including several from an ongoing top-to-bottom inspection of RCU. The patches are as follows: 1. Place per-CPU kthreads' stack and ...

Message posted on the September 7th, 2011 - 2:30 AM ET

rtmutex permit