Alan Cox wrote:
> > - Then, are we certain that there's no case where the tty layer will
> > call us with some lock held or in an atomic context ? To be honest,
> > I've totally lost track of the locking rules in tty land lately so it
> > might well be ok, but something to verify.
>
> Some of the
On Thu, 2009-08-27 at 12:22 +0530, Amit Shah wrote:
> On (Thu) Aug 27 2009 [15:04:45], Michael Ellerman wrote:
> Ryan you called his code "pure legacy baggage" if you
> > don't ;)
> >
> > http://git.kernel.org/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commitdiff;h=d450b4ae023fb4be175389c18
> - Then, are we certain that there's no case where the tty layer will
> call us with some lock held or in an atomic context ? To be honest,
> I've totally lost track of the locking rules in tty land lately so it
> might well be ok, but something to verify.
Some of the less well behaved line disc
On Thu, 2009-08-27 at 10:08 +0100, Alan Cox wrote:
> > - Then, are we certain that there's no case where the tty layer will
> > call us with some lock held or in an atomic context ? To be honest,
> > I've totally lost track of the locking rules in tty land lately so it
> > might well be ok, but so
On (Thu) Aug 27 2009 [15:04:45], Michael Ellerman wrote:
> On Wed, 2009-08-26 at 21:15 +0530, Amit Shah wrote:
> > [cc'ing some people who have made some commits in hvc_console.c]
> >
> > On (Wed) Aug 26 2009 [16:57:18], Amit Shah wrote:
> > > On (Tue) Aug 25 2009 [11:47:20], Amit Shah wrote:
> >
On (Thu) Aug 27 2009 [14:07:03], Benjamin Herrenschmidt wrote:
> On Wed, 2009-08-26 at 21:15 +0530, Amit Shah wrote:
>
> >
> > > - Convert hvc's usage of spinlocks to mutexes. I've no idea how this
> > > will play out; I'm no expert here. But I did try doing this and so far
> > > it all looks
On Wed, 2009-08-26 at 21:15 +0530, Amit Shah wrote:
> [cc'ing some people who have made some commits in hvc_console.c]
>
> On (Wed) Aug 26 2009 [16:57:18], Amit Shah wrote:
> > On (Tue) Aug 25 2009 [11:47:20], Amit Shah wrote:
> > >
> > > Hello all,
> > >
> > > Here is a new iteration of the pat
On Wed, 2009-08-26 at 21:15 +0530, Amit Shah wrote:
>
> > - Convert hvc's usage of spinlocks to mutexes. I've no idea how this
> > will play out; I'm no expert here. But I did try doing this and so far
> > it all looks OK. No lockups, lockdep warnings, nothing. I have full
> > debugging ena
[cc'ing some people who have made some commits in hvc_console.c]
On (Wed) Aug 26 2009 [16:57:18], Amit Shah wrote:
> On (Tue) Aug 25 2009 [11:47:20], Amit Shah wrote:
> >
> > Hello all,
> >
> > Here is a new iteration of the patch series that implements a
> > transport for guest and host communi
