On 07/15/2013 07:47 PM, Thomas Gleixner wrote:
On Mon, 15 Jul 2013, Waiman Long wrote:
On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
On Mon, 8 Jul 2013, Waiman Long wrote:
Sigh. GENERIC means, that you use the generic implementation, ARCH
means the architecture has a private implementation of
On Mon, 15 Jul 2013, Waiman Long wrote:
> On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
> > On Mon, 8 Jul 2013, Waiman Long wrote:
> > Sigh. GENERIC means, that you use the generic implementation, ARCH
> > means the architecture has a private implementation of that code.
> >
> > The generic
On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
On Mon, 8 Jul 2013, Waiman Long wrote:
On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
On Fri, 5 Jul 2013, Waiman Long wrote:
I think it is OK to add the GENERIC option, but I would like to make available
a slightly different set of options:
1)
On Mon, 8 Jul 2013, Waiman Long wrote:
> On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
> > On Fri, 5 Jul 2013, Waiman Long wrote:
> I think it is OK to add the GENERIC option, but I would like to make available
> a slightly different set of options:
> 1) Always take the lock
> 2) Use the generic
On Mon, 8 Jul 2013, Waiman Long wrote:
On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
On Fri, 5 Jul 2013, Waiman Long wrote:
I think it is OK to add the GENERIC option, but I would like to make available
a slightly different set of options:
1) Always take the lock
2) Use the generic
On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
On Mon, 8 Jul 2013, Waiman Long wrote:
On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
On Fri, 5 Jul 2013, Waiman Long wrote:
I think it is OK to add the GENERIC option, but I would like to make available
a slightly different set of options:
1)
On Mon, 15 Jul 2013, Waiman Long wrote:
On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
On Mon, 8 Jul 2013, Waiman Long wrote:
Sigh. GENERIC means, that you use the generic implementation, ARCH
means the architecture has a private implementation of that code.
The generic implementation
On 07/15/2013 07:47 PM, Thomas Gleixner wrote:
On Mon, 15 Jul 2013, Waiman Long wrote:
On 07/15/2013 10:41 AM, Thomas Gleixner wrote:
On Mon, 8 Jul 2013, Waiman Long wrote:
Sigh. GENERIC means, that you use the generic implementation, ARCH
means the architecture has a private implementation of
On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
On Fri, 5 Jul 2013, Waiman Long wrote:
+ * If the spinlock& reference count optimization feature is disabled,
+ * the spinlock and reference count are accessed separately on its own.
+ */
+struct lockref {
+ unsigned int refcnt;/*
On 07/05/2013 02:59 PM, Thomas Gleixner wrote:
On Fri, 5 Jul 2013, Waiman Long wrote:
+ * If the spinlock reference count optimization feature is disabled,
+ * the spinlock and reference count are accessed separately on its own.
+ */
+struct lockref {
+ unsigned int refcnt;/*
On Fri, 5 Jul 2013, Waiman Long wrote:
> + * If the spinlock & reference count optimization feature is disabled,
> + * the spinlock and reference count are accessed separately on its own.
> + */
> +struct lockref {
> + unsigned int refcnt;/* Reference count */
> + spinlock_t lock;
>
This patch introduces a new set of spinlock_refcount.h header files to
be included by kernel codes that want to do a faster lockless update
of reference count protected by a spinlock.
The new lockref structure consists of just the spinlock and the
reference count data. Helper functions are
This patch introduces a new set of spinlock_refcount.h header files to
be included by kernel codes that want to do a faster lockless update
of reference count protected by a spinlock.
The new lockref structure consists of just the spinlock and the
reference count data. Helper functions are
On Fri, 5 Jul 2013, Waiman Long wrote:
+ * If the spinlock reference count optimization feature is disabled,
+ * the spinlock and reference count are accessed separately on its own.
+ */
+struct lockref {
+ unsigned int refcnt;/* Reference count */
+ spinlock_t lock;
+};
+
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