Displaying 10 results from an estimated 10 matches for "29cc9c7".
2014 Jun 17
5
[PATCH 03/11] qspinlock: Add pending bit
...this in the header file
as this is trying to not be a slowpath code - but rather - a
pre-slow-path-lets-try-if-we can do another cmpxchg in case
the unlocker has just unlocked itself.
So something like:
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index e8a7ae8..29cc9c7 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
*/
static __always_inline void queue_spin_lock(struct qspinlock *lock)
{
- u32 val;
+ u32 val, new;
val = atomic_cmpx...
2014 Jun 17
5
[PATCH 03/11] qspinlock: Add pending bit
...this in the header file
as this is trying to not be a slowpath code - but rather - a
pre-slow-path-lets-try-if-we can do another cmpxchg in case
the unlocker has just unlocked itself.
So something like:
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index e8a7ae8..29cc9c7 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
*/
static __always_inline void queue_spin_lock(struct qspinlock *lock)
{
- u32 val;
+ u32 val, new;
val = atomic_cmpx...
2014 Jun 17
3
[PATCH 03/11] qspinlock: Add pending bit
...code - but rather - a
> >pre-slow-path-lets-try-if-we can do another cmpxchg in case
> >the unlocker has just unlocked itself.
> >
> >So something like:
> >
> >diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> >index e8a7ae8..29cc9c7 100644
> >--- a/include/asm-generic/qspinlock.h
> >+++ b/include/asm-generic/qspinlock.h
> >@@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> > */
> > static __always_inline void queue_spin_lock(struct qspinlock *lock)
>...
2014 Jun 17
3
[PATCH 03/11] qspinlock: Add pending bit
...code - but rather - a
> >pre-slow-path-lets-try-if-we can do another cmpxchg in case
> >the unlocker has just unlocked itself.
> >
> >So something like:
> >
> >diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> >index e8a7ae8..29cc9c7 100644
> >--- a/include/asm-generic/qspinlock.h
> >+++ b/include/asm-generic/qspinlock.h
> >@@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> > */
> > static __always_inline void queue_spin_lock(struct qspinlock *lock)
>...
2014 Jun 17
0
[PATCH 03/11] qspinlock: Add pending bit
...is trying to not be a slowpath code - but rather - a
> pre-slow-path-lets-try-if-we can do another cmpxchg in case
> the unlocker has just unlocked itself.
>
> So something like:
>
> diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> index e8a7ae8..29cc9c7 100644
> --- a/include/asm-generic/qspinlock.h
> +++ b/include/asm-generic/qspinlock.h
> @@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> */
> static __always_inline void queue_spin_lock(struct qspinlock *lock)
> {
> - u32 val;...
2014 Jun 17
0
[PATCH 03/11] qspinlock: Add pending bit
...t;pre-slow-path-lets-try-if-we can do another cmpxchg in case
> > >the unlocker has just unlocked itself.
> > >
> > >So something like:
> > >
> > >diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> > >index e8a7ae8..29cc9c7 100644
> > >--- a/include/asm-generic/qspinlock.h
> > >+++ b/include/asm-generic/qspinlock.h
> > >@@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> > > */
> > > static __always_inline void queue_spin_lock(str...
2014 Jun 17
1
[PATCH 03/11] qspinlock: Add pending bit
...g in case
> >>>> the unlocker has just unlocked itself.
> >>>>
> >>>> So something like:
> >>>>
> >>>> diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> >>>> index e8a7ae8..29cc9c7 100644
> >>>> --- a/include/asm-generic/qspinlock.h
> >>>> +++ b/include/asm-generic/qspinlock.h
> >>>> @@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> >>>>??? */
> >>>>?? st...
2014 Jun 17
1
[PATCH 03/11] qspinlock: Add pending bit
...g in case
> >>>> the unlocker has just unlocked itself.
> >>>>
> >>>> So something like:
> >>>>
> >>>> diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
> >>>> index e8a7ae8..29cc9c7 100644
> >>>> --- a/include/asm-generic/qspinlock.h
> >>>> +++ b/include/asm-generic/qspinlock.h
> >>>> @@ -75,11 +75,21 @@ extern void queue_spin_lock_slowpath(struct qspinlock *lock, u32 val);
> >>>>??? */
> >>>>?? st...
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the
paravirt crap.
The first few patches are taken from Waiman's latest series, but the virt
support is completely new. Its primary aim is to not mess up the native code.
I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple
smp guests. I've not done Xen, but the patch should be
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the
paravirt crap.
The first few patches are taken from Waiman's latest series, but the virt
support is completely new. Its primary aim is to not mess up the native code.
I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple
smp guests. I've not done Xen, but the patch should be