Messages in this thread | | | Date | Sat, 26 Nov 2005 14:31:37 +0100 | From | Ingo Molnar <> | Subject | Re: robust futex heap support patch |
| |
* david singleton <dsingleton@mvista.com> wrote:
> There is a new patch, patch-2.6.14-rt15-rf1, that adds support for > robust and priority inheriting pthread_mutexes on the 'heap'.
we need to go a bit slower. For now i had to remove robust-futexes from the -rt17 release because they broke normal (non-robust) futex support in -rt15. A simple mozilla startup would hang... Please send fixes against -rt16 and i'll try to re-add the robust futexes patch later on. You can find -rt16 at:
http://people.redhat.com/mingo/realtime-preempt/older/patch-2.6.14-rt16
> The previous patches only supported either file based pthread_mutexes > or mmapped anonymous memory based pthread_mutexes. This patch allows > pthread_mutexes to be 'malloc'ed while using the > PTHREAD_MUTEX_ROBUST_NP attribute or PTHREAD_PRIO_INHERIT attribute. > > The patch can be found at: > > http://source.mvista.com/~dsingleton
this patch looks much cleaner than the earlier one, but there's one more step to go: now that we've got the futex_head in every vma, why not hang all robust futexes to the vma, and thus get rid of ->robust_list and ->robust_sem from struct address_space?
Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |