On Thu, Nov 15, 2007 at 05:05:20PM +0100, Ingo Molnar wrote:
>
> * Ingo Molnar <[EMAIL PROTECTED]> wrote:
>
> > FYI, i've put these 3 patches into the scheduler git tree and it's
> > looking very good so far. So unless Andrew or Linus objects to put
> > this into v2.6.24, or there's serious
On Thu, Nov 15, 2007 at 05:05:20PM +0100, Ingo Molnar wrote:
* Ingo Molnar [EMAIL PROTECTED] wrote:
FYI, i've put these 3 patches into the scheduler git tree and it's
looking very good so far. So unless Andrew or Linus objects to put
this into v2.6.24, or there's serious questions
On 11/15, Gautham R Shenoy wrote:
>
> +static struct {
> + struct task_struct *active_writer;
> + struct mutex lock; /* Synchronizes accesses to refcount, */
> + /*
> + * Also blocks the new readers during
> + * an ongoing cpu hotplug operation.
> + */
> + int
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> FYI, i've put these 3 patches into the scheduler git tree and it's
> looking very good so far. So unless Andrew or Linus objects to put
> this into v2.6.24, or there's serious questions during review, could
> we merge it this way?
i've got this
* Ingo Molnar <[EMAIL PROTECTED]> wrote:
> * Gautham R Shenoy <[EMAIL PROTECTED]> wrote:
>
> > void lock_cpu_hotplug(void)
> > {
> > - struct task_struct *tsk = current;
> > -
> > - if (tsk == recursive) {
> > - static int warnings = 10;
> > - if (warnings) {
> > -
* Gautham R Shenoy <[EMAIL PROTECTED]> wrote:
> void lock_cpu_hotplug(void)
> {
> - struct task_struct *tsk = current;
> -
> - if (tsk == recursive) {
> - static int warnings = 10;
> - if (warnings) {
> - printk(KERN_ERR "Lukewarm IQ detected
From: Gautham R Shenoy <[EMAIL PROTECTED]>
Date: Thu, 15 Nov 2007 18:14:20 +0530
Subject: [PATCH 1/3] cpu-hotplug: Refcount based Cpu Hotplug implementation
This patch implements a Refcount + Waitqueue based model for
cpu-hotplug.
Now, a thread which wants to prevent cpu-hotplug, will bump up a
From: Gautham R Shenoy [EMAIL PROTECTED]
Date: Thu, 15 Nov 2007 18:14:20 +0530
Subject: [PATCH 1/3] cpu-hotplug: Refcount based Cpu Hotplug implementation
This patch implements a Refcount + Waitqueue based model for
cpu-hotplug.
Now, a thread which wants to prevent cpu-hotplug, will bump up a
* Gautham R Shenoy [EMAIL PROTECTED] wrote:
void lock_cpu_hotplug(void)
{
- struct task_struct *tsk = current;
-
- if (tsk == recursive) {
- static int warnings = 10;
- if (warnings) {
- printk(KERN_ERR Lukewarm IQ detected in hotplug
On 11/15, Gautham R Shenoy wrote:
+static struct {
+ struct task_struct *active_writer;
+ struct mutex lock; /* Synchronizes accesses to refcount, */
+ /*
+ * Also blocks the new readers during
+ * an ongoing cpu hotplug operation.
+ */
+ int refcount;
+
* Ingo Molnar [EMAIL PROTECTED] wrote:
FYI, i've put these 3 patches into the scheduler git tree and it's
looking very good so far. So unless Andrew or Linus objects to put
this into v2.6.24, or there's serious questions during review, could
we merge it this way?
i've got this trivial
* Ingo Molnar [EMAIL PROTECTED] wrote:
* Gautham R Shenoy [EMAIL PROTECTED] wrote:
void lock_cpu_hotplug(void)
{
- struct task_struct *tsk = current;
-
- if (tsk == recursive) {
- static int warnings = 10;
- if (warnings) {
-
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