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SubjectRe: Could you reinstate ticketlock cleanups in tip.git

* Jeremy Fitzhardinge <jeremy@goop.org> wrote:

> On 09/27/2011 11:31 PM, Ingo Molnar wrote:
> > * Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> >> Hi Thomas,
> >>
> >> Could you reinstate the ticketlock cleanup series in tip.git (I think it
> >> was in x86/spinlocks) from
> >> git://github.com/jsgf/linux-xen.git upstream/ticketlock-cleanup
> >>
> >> This branch is the final result of all the discussions and revisions and
> >> is ready for the next merge window. It's the one that's been in
> >> linux-next for a couple of weeks (at least), and won't cause any
> >> conflicts there.
> >>
> >> Or if you prefer I can submit it myself for next merge window.
> >>
> >> Thanks,
> >> J
> > I'd prefer if this went via x86/spinlocks. Could you please send a
> > proper pull request with diffstat, shortlog, etc?
> >
>
> Sure, here you are:
>
> The following changes since commit c6a389f123b9f68d605bb7e0f9b32ec1e3e14132:
>
> Linux 3.1-rc4 (2011-08-28 21:16:01 -0700)
>
> are available in the git repository at:
> git://github.com/jsgf/linux-xen upstream/ticketlock-cleanup
> (commit 4a7f340c6a75ec5fca23d9c80a59f3f28cc4a61e)
>
> Jeremy Fitzhardinge (12):
> x86, cmpxchg: <linux/alternative.h> has LOCK_PREFIX
> x86, cmpxchg: Move 32-bit __cmpxchg_wrong_size to match 64 bit.
> x86, cmpxchg: Move 64-bit set64_bit() to match 32-bit
> x86, cmpxchg: Unify cmpxchg into cmpxchg.h
> x86: Add xadd helper macro
> x86: Use xadd helper more widely
> x86, ticketlock: Clean up types and accessors
> x86, ticketlock: Convert spin loop to C
> x86, ticketlock: Convert __ticket_spin_lock to use xadd()
> x86, ticketlock: Make __ticket_spin_trylock common
> x86, cmpxchg: Use __compiletime_error() to make usage messages a bit nicer
> x86, ticketlock: remove obsolete comment
>
> arch/x86/include/asm/atomic.h | 8 +-
> arch/x86/include/asm/atomic64_64.h | 6 +-
> arch/x86/include/asm/cmpxchg.h | 205 +++++++++++++++++++++++++++++++++
> arch/x86/include/asm/cmpxchg_32.h | 114 ------------------
> arch/x86/include/asm/cmpxchg_64.h | 131 ---------------------
> arch/x86/include/asm/rwsem.h | 8 +-
> arch/x86/include/asm/spinlock.h | 114 +++++--------------
> arch/x86/include/asm/spinlock_types.h | 22 +++-
> arch/x86/include/asm/uv/uv_bau.h | 6 +-
> 9 files changed, 257 insertions(+), 357 deletions(-)

Pulled, thanks Jeremy!

Ingo


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