v1->v2: - Adds an explicit lock hand-off mechanism. - Adds timeout support. - Simplifies the required userspace code. - Fixes a number of problems in the v1 code. This patchset introduces a new futex implementation called throughput-optimized (TO) futexes. It is similar to PI futexes in its calling convention, but provides better throughput than the wait-wake futexes by encouraging lock stealing and optimistic spinning. Waiman Long (5): futex: Add futex_set_timer() helper function futex: Rename futex_pi_state to futex_state futex: Throughput-optimized (TO) futexes futex: Add timeout support to TO futexes futex, doc: TO futexes document Documentation/00-INDEX | 2 + Documentation/to-futex.txt | 140 ++++++++ include/linux/sched.h | 4 +- include/uapi/linux/futex.h | 4 + kernel/futex.c | 810 +++++++++++++++++++++++++++++++++++++++----- 5 files changed, 869 insertions(+), 91 deletions(-) create mode 100644 Documentation/to-futex.txt -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
