Messages in this thread | | | Date | Fri, 16 Oct 2009 10:09:46 +0200 | From | Joerg Abraham <> | Subject | Re: 2.6.31.4-rt14 posix message queues problem (solved) |
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Hi John,
> Hello Joerg > > Does the following patch solve your problem?
yes, (verified on powerpc and x86_64)
so it may be save to include your patch into the next rt release.
Thanx,
Joerg
> > From 69fde4357db4a054733cbca4158606160e821a3a Mon Sep 17 00:00:00 2001 > From: John Kacur <jkacur@redhat.com> > Date: Thu, 15 Oct 2009 20:52:37 +0200 > Subject: [PATCH] preempt_disable_rt(); should be paired with preempt_enable_rt() > > Signed-off-by: John Kacur <jkacur@redhat.com> > --- > ipc/mqueue.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/ipc/mqueue.c b/ipc/mqueue.c > index 63a47f7..ab4df36 100644 > --- a/ipc/mqueue.c > +++ b/ipc/mqueue.c > @@ -830,7 +830,7 @@ static inline void pipelined_send(struct mqueue_inode_info *info, > wake_up_process(receiver->task); > smp_wmb(); > receiver->state = STATE_READY; > - preempt_enable_nort(); > + preempt_enable_rt(); > } > > /* pipelined_receive() - if there is task waiting in sys_mq_timedsend()
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