Displaying 11 results from an estimated 11 matches for "return_true".
2014 Oct 27
2
[PATCH v12 09/11] pvqspinlock, x86: Add para-virtualization support
...{ return false; }
-static inline int pv_wait_head(struct qspinlock *lock,
+static inline int nopv_wait_head(struct qspinlock *lock,
struct mcs_spinlock *node)
{ return smp_load_acquire(&lock->val.counter); }
+static inline bool return_true(void) { return true; }
+static inline bool return_false(void) { return false; }
-#endif /* CONFIG_PARAVIRT_SPINLOCKS */
+#define pv_init_node nopv_init_node
+#define pv_wait_check nopv_wait_check
+#define pv_link_and_wait_node nopv_link_and_wait_node
+#define pv_wait_head...
2014 Oct 27
2
[PATCH v12 09/11] pvqspinlock, x86: Add para-virtualization support
...{ return false; }
-static inline int pv_wait_head(struct qspinlock *lock,
+static inline int nopv_wait_head(struct qspinlock *lock,
struct mcs_spinlock *node)
{ return smp_load_acquire(&lock->val.counter); }
+static inline bool return_true(void) { return true; }
+static inline bool return_false(void) { return false; }
-#endif /* CONFIG_PARAVIRT_SPINLOCKS */
+#define pv_init_node nopv_init_node
+#define pv_wait_check nopv_wait_check
+#define pv_link_and_wait_node nopv_link_and_wait_node
+#define pv_wait_head...
2014 Oct 24
3
[PATCH v12 09/11] pvqspinlock, x86: Add para-virtualization support
On 10/24/2014 04:47 AM, Peter Zijlstra wrote:
> On Thu, Oct 16, 2014 at 02:10:38PM -0400, Waiman Long wrote:
>> +static inline void pv_init_node(struct mcs_spinlock *node)
>> +{
>> + struct pv_qnode *pn = (struct pv_qnode *)node;
>> +
>> + BUILD_BUG_ON(sizeof(struct pv_qnode)> 5*sizeof(struct mcs_spinlock));
>> +
>> + if (!pv_enabled())
>> +
2014 Oct 24
3
[PATCH v12 09/11] pvqspinlock, x86: Add para-virtualization support
On 10/24/2014 04:47 AM, Peter Zijlstra wrote:
> On Thu, Oct 16, 2014 at 02:10:38PM -0400, Waiman Long wrote:
>> +static inline void pv_init_node(struct mcs_spinlock *node)
>> +{
>> + struct pv_qnode *pn = (struct pv_qnode *)node;
>> +
>> + BUILD_BUG_ON(sizeof(struct pv_qnode)> 5*sizeof(struct mcs_spinlock));
>> +
>> + if (!pv_enabled())
>> +
2014 Oct 27
0
[PATCH v12 09/11] pvqspinlock, x86: Add para-virtualization support
...ock_slowpath function
> + */
> +#undef pv_init_node
> +#undef pv_wait_check
> +#undef pv_link_and_wait_node
> +#undef pv_wait_head
> +#undef EXPORT_SYMBOL
> +#undef in_pv_code
> +
> +#define _GEN_PV_LOCK_SLOWPATH
> +#define EXPORT_SYMBOL(x)
> +#define in_pv_code return_true
> +#define pv_enabled return_false
> +
> +#include "qspinlock.c"
> +
> +#endif
That's properly disgusting :-) But a lot better than actually
duplicating everything I suppose.
2014 Oct 29
1
[PATCH v13 09/11] pvqspinlock, x86: Add para-virtualization support
..._spinlock *next) { }
+static inline bool nonpv_link_and_wait_node(u32 old, struct mcs_spinlock *node)
+ { return false; }
+static inline int nonpv_wait_head(struct qspinlock *lock,
+ struct mcs_spinlock *node)
+ { return smp_load_acquire(&lock->val.counter); }
+static inline bool return_true(void) { return true; }
+static inline bool return_false(void) { return false; }
+
+#define pv_init_node nonpv_init_node
+#define pv_wait_check nonpv_wait_check
+#define pv_link_and_wait_node nonpv_link_and_wait_node
+#define pv_wait_head nonpv_wait_head
+#define pv_enabled return_false
+
+#end...
2014 Oct 29
1
[PATCH v13 09/11] pvqspinlock, x86: Add para-virtualization support
..._spinlock *next) { }
+static inline bool nonpv_link_and_wait_node(u32 old, struct mcs_spinlock *node)
+ { return false; }
+static inline int nonpv_wait_head(struct qspinlock *lock,
+ struct mcs_spinlock *node)
+ { return smp_load_acquire(&lock->val.counter); }
+static inline bool return_true(void) { return true; }
+static inline bool return_false(void) { return false; }
+
+#define pv_init_node nonpv_init_node
+#define pv_wait_check nonpv_wait_check
+#define pv_link_and_wait_node nonpv_link_and_wait_node
+#define pv_wait_head nonpv_wait_head
+#define pv_enabled return_false
+
+#end...
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14:
- Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit
78bff1c86 from Oleg Nesterov.
- Fix the system hang problem when using PV qspinlock in an
over-committed guest due to a racing condition in the
pv_set_head_in_tail() function.
- Increase the MAYHALT_THRESHOLD from 10 to 1024.
- Change kick_cpu into a regular function pointer instead of a
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14:
- Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit
78bff1c86 from Oleg Nesterov.
- Fix the system hang problem when using PV qspinlock in an
over-committed guest due to a racing condition in the
pv_set_head_in_tail() function.
- Increase the MAYHALT_THRESHOLD from 10 to 1024.
- Change kick_cpu into a regular function pointer instead of a
2014 Oct 29
15
[PATCH v13 00/11] qspinlock: a 4-byte queue spinlock with PV support
v12->v13:
- Change patch 9 to generate separate versions of the
queue_spin_lock_slowpath functions for bare metal and PV guest. This
reduces the performance impact of the PV code on bare metal systems.
v11->v12:
- Based on PeterZ's version of the qspinlock patch
(https://lkml.org/lkml/2014/6/15/63).
- Incorporated many of the review comments from Konrad Wilk and
Paolo
2014 Oct 29
15
[PATCH v13 00/11] qspinlock: a 4-byte queue spinlock with PV support
v12->v13:
- Change patch 9 to generate separate versions of the
queue_spin_lock_slowpath functions for bare metal and PV guest. This
reduces the performance impact of the PV code on bare metal systems.
v11->v12:
- Based on PeterZ's version of the qspinlock patch
(https://lkml.org/lkml/2014/6/15/63).
- Incorporated many of the review comments from Konrad Wilk and
Paolo