linux-toradex.git/drivers/base/cpu.c, branch v2.6.21.6

Replace remaining references to "driverfs" with "sysfs".

2007-02-17T18:13:42+00:00

Globally, s/driverfs/sysfs/g.

Signed-off-by: Robert P. J. Day 
Signed-off-by: Adrian Bunk

[PATCH] i386: change the 'no_control' field to 'hotpluggable' in the struct cpu

2006-12-07T01:14:10+00:00

Change the 'no_control' field in the cpu struct to a more positive
and better term 'hotpluggable'. And change(/cleanup) the logic accordingly.

Signed-off-by: Suresh Siddha 
Signed-off-by: Andi Kleen 
Cc: Andi Kleen 
Cc: "Li, Shaohua" 
Signed-off-by: Andrew Morton

[PATCH] severing module.h->sched.h

2006-12-04T07:00:22+00:00

Signed-off-by: Al Viro

[PATCH] sched: mc/smt power savings sched policy

2006-06-28T00:32:45+00:00

sysfs entries 'sched_mc_power_savings' and 'sched_smt_power_savings' in
/sys/devices/system/cpu/ control the MC/SMT power savings policy for the
scheduler.

Based on the values (1-enable, 0-disable) for these controls, sched groups
cpu power will be determined for different domains.  When power savings
policy is enabled and under light load conditions, scheduler will minimize
the physical packages/cpu cores carrying the load and thus conserving
power(with a perf impact based on the workload characteristics...  see OLS
2005 CMP kernel scheduler paper for more details..)

Signed-off-by: Suresh Siddha 
Cc: Ingo Molnar 
Cc: Nick Piggin 
Cc: Con Kolivas 
Cc: "Chen, Kenneth W" 
Cc: "David S. Miller" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] node hotplug: register cpu: remove node struct

2006-06-28T00:32:37+00:00

With Goto-san's patch, we can add new pgdat/node at runtime.  I'm now
considering node-hot-add with cpu + memory on ACPI.

I found acpi container, which describes node, could evaluate cpu before
memory. This means cpu-hot-add occurs before memory hot add.

In most part, cpu-hot-add doesn't depend on node hot add.  But register_cpu(),
which creates symbolic link from node to cpu, requires that node should be
onlined before register_cpu().  When a node is onlined, its pgdat should be
there.

This patch-set holds off creating symbolic link from node to cpu
until node is onlined.

This removes node arguments from register_cpu().

Now, register_cpu() requires 'struct node' as its argument.  But the array of
struct node is now unified in driver/base/node.c now (By Goto's node hotplug
patch).  We can get struct node in generic way.  So, this argument is not
necessary now.

This patch also guarantees add cpu under node only when node is onlined.  It
is necessary for node-hot-add vs.  cpu-hot-add patch following this.

Moreover, register_cpu calculates cpu->node_id by cpu_to_node() without regard
to its 'struct node *root' argument.  This patch removes it.

Also modify callers of register_cpu()/unregister_cpu, whose args are changed
by register-cpu-remove-node-struct patch.

[Brice.Goglin@ens-lyon.org: fix it]
Signed-off-by: KAMEZAWA Hiroyuki 
Cc: Yasunori Goto 
Cc: Ashok Raj 
Cc: Dave Hansen 
Signed-off-by: Brice Goglin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Check if cpu can be onlined before calling smp_prepare_cpu()

2006-03-25T16:23:01+00:00

- Moved check for online cpu out of smp_prepare_cpu()

- Moved default declaration of smp_prepare_cpu() to kernel/cpu.c

- Removed lock_cpu_hotplug() from smp_prepare_cpu() to around it, since
  its called from cpu_up() as well now.

- Removed clearing from cpu_present_map during cpu_offline as it breaks
  using cpu_up() directly during a subsequent online operation.

Signed-off-by: Ashok Raj 
Cc: Srivatsa Vaddagiri 
Cc: "Li, Shaohua" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] get_cpu_sysdev() signedness fix

2006-03-20T21:42:59+00:00

Doing (int < NR_CPUS) doesn't dtrt if it's negative..

Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

[PATCH] kdump: export per cpu crash notes pointer through sysfs (fix)

2006-01-10T16:01:26+00:00

Removes the call to get_cpu() and put_cpu() as it is not required.

Signed-off-by: Vivek Goyal 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] kdump: export per cpu crash notes pointer through sysfs

2006-01-10T16:01:26+00:00

- Kexec on panic functionality allocates memory for saving cpu registers in
  case of system crash event.  Address of this allocated memory needs to be
  exported to user space, which is used by kexec-tools.

- Previously, a single /sys/kernel/crash_notes entry was being exported as
  memory allocated was a single continuous array.  Now memory allocation being
  dyanmic and per cpu based, address of per cpu buffer is exported through
  "/sys/devices/system/cpu/cpuX/crash_notes"

Signed-off-by: Vivek Goyal 
Cc: Greg KH 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] driver core: replace "hotplug" by "uevent"

2006-01-05T00:18:08+00:00

Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.

Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman