Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-15 Thread Linus Torvalds


On Fri, 15 Jun 2007, Randy Dunlap wrote:

> On Fri, 15 Jun 2007 12:02:41 +0900 Paul Mundt wrote:
> 
> > On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
> > > Thanks. I tested compile with cpu/memory hotplug off/on.
> > > It was OK.
> > > 
> > > Acked-by: Yasunori Goto <[EMAIL PROTECTED]>
> > > 
> > It would be nice to have this for 2.6.22..
> 
> Yes, please.

I pushed out my tree that should include this one about ten minutes ago..

Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-15 Thread Randy Dunlap
On Fri, 15 Jun 2007 12:02:41 +0900 Paul Mundt wrote:

> On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
> > Thanks. I tested compile with cpu/memory hotplug off/on.
> > It was OK.
> > 
> > Acked-by: Yasunori Goto <[EMAIL PROTECTED]>
> > 
> It would be nice to have this for 2.6.22..

Yes, please.

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-15 Thread Randy Dunlap
On Fri, 15 Jun 2007 12:02:41 +0900 Paul Mundt wrote:

 On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
  Thanks. I tested compile with cpu/memory hotplug off/on.
  It was OK.
  
  Acked-by: Yasunori Goto [EMAIL PROTECTED]
  
 It would be nice to have this for 2.6.22..

Yes, please.

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-15 Thread Linus Torvalds


On Fri, 15 Jun 2007, Randy Dunlap wrote:

 On Fri, 15 Jun 2007 12:02:41 +0900 Paul Mundt wrote:
 
  On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
   Thanks. I tested compile with cpu/memory hotplug off/on.
   It was OK.
   
   Acked-by: Yasunori Goto [EMAIL PROTECTED]
   
  It would be nice to have this for 2.6.22..
 
 Yes, please.

I pushed out my tree that should include this one about ten minutes ago..

Linus
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Paul Mundt
On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
> Thanks. I tested compile with cpu/memory hotplug off/on.
> It was OK.
> 
> Acked-by: Yasunori Goto <[EMAIL PROTECTED]>
> 
It would be nice to have this for 2.6.22..
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Yasunori Goto

Thanks. I tested compile with cpu/memory hotplug off/on.
It was OK.

Acked-by: Yasunori Goto <[EMAIL PROTECTED]>


> (This is a resend of the earlier patch, this issue still needs to be
> fixed.)
> 
> When building with memory hotplug enabled and cpu hotplug disabled, we
> end up with the following section mismatch:
> 
> WARNING: mm/built-in.o(.text+0x4e58): Section mismatch: reference to
> .init.text: (between 'free_area_init_node' and '__build_all_zonelists')
> 
> This happens as a result of:
> 
> -> free_area_init_node()
>   -> free_area_init_core()
> -> zone_pcp_init() <-- all __meminit up to this point
>   -> zone_batchsize() <-- marked as __cpuinit 
> fo
> 
> This happens because CONFIG_HOTPLUG_CPU=n sets __cpuinit to __init, but
> CONFIG_MEMORY_HOTPLUG=y unsets __meminit.
> 
> Changing zone_batchsize() to __devinit fixes this.
> 
> __devinit is the only thing that is common between CONFIG_HOTPLUG_CPU=y and
> CONFIG_MEMORY_HOTPLUG=y. In the long run, perhaps this should be moved to
> another section identifier completely. Without this, memory hot-add
> of offline nodes (via hotadd_new_pgdat()) will oops if CPU hotplug is
> not also enabled.
> 
> Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
> 
> --
> 
>  mm/page_alloc.c |2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index bd8e335..05ace44 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -1968,7 +1968,7 @@ void zone_init_free_lists(struct pglist_data *pgdat, 
> struct zone *zone,
>   memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY)
>  #endif
>  
> -static int __cpuinit zone_batchsize(struct zone *zone)
> +static int __devinit zone_batchsize(struct zone *zone)
>  {
>   int batch;
>  
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [EMAIL PROTECTED]
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

-- 
Yasunori Goto 


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Paul Mundt
(This is a resend of the earlier patch, this issue still needs to be
fixed.)

When building with memory hotplug enabled and cpu hotplug disabled, we
end up with the following section mismatch:

WARNING: mm/built-in.o(.text+0x4e58): Section mismatch: reference to
.init.text: (between 'free_area_init_node' and '__build_all_zonelists')

This happens as a result of:

-> free_area_init_node()
  -> free_area_init_core()
-> zone_pcp_init() <-- all __meminit up to this point
  -> zone_batchsize() <-- marked as __cpuinit fo

This happens because CONFIG_HOTPLUG_CPU=n sets __cpuinit to __init, but
CONFIG_MEMORY_HOTPLUG=y unsets __meminit.

Changing zone_batchsize() to __devinit fixes this.

__devinit is the only thing that is common between CONFIG_HOTPLUG_CPU=y and
CONFIG_MEMORY_HOTPLUG=y. In the long run, perhaps this should be moved to
another section identifier completely. Without this, memory hot-add
of offline nodes (via hotadd_new_pgdat()) will oops if CPU hotplug is
not also enabled.

Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>

--

 mm/page_alloc.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index bd8e335..05ace44 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1968,7 +1968,7 @@ void zone_init_free_lists(struct pglist_data *pgdat, 
struct zone *zone,
memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY)
 #endif
 
-static int __cpuinit zone_batchsize(struct zone *zone)
+static int __devinit zone_batchsize(struct zone *zone)
 {
int batch;
 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Paul Mundt
(This is a resend of the earlier patch, this issue still needs to be
fixed.)

When building with memory hotplug enabled and cpu hotplug disabled, we
end up with the following section mismatch:

WARNING: mm/built-in.o(.text+0x4e58): Section mismatch: reference to
.init.text: (between 'free_area_init_node' and '__build_all_zonelists')

This happens as a result of:

- free_area_init_node()
  - free_area_init_core()
- zone_pcp_init() -- all __meminit up to this point
  - zone_batchsize() -- marked as __cpuinit fo

This happens because CONFIG_HOTPLUG_CPU=n sets __cpuinit to __init, but
CONFIG_MEMORY_HOTPLUG=y unsets __meminit.

Changing zone_batchsize() to __devinit fixes this.

__devinit is the only thing that is common between CONFIG_HOTPLUG_CPU=y and
CONFIG_MEMORY_HOTPLUG=y. In the long run, perhaps this should be moved to
another section identifier completely. Without this, memory hot-add
of offline nodes (via hotadd_new_pgdat()) will oops if CPU hotplug is
not also enabled.

Signed-off-by: Paul Mundt [EMAIL PROTECTED]

--

 mm/page_alloc.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index bd8e335..05ace44 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1968,7 +1968,7 @@ void zone_init_free_lists(struct pglist_data *pgdat, 
struct zone *zone,
memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY)
 #endif
 
-static int __cpuinit zone_batchsize(struct zone *zone)
+static int __devinit zone_batchsize(struct zone *zone)
 {
int batch;
 
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Yasunori Goto

Thanks. I tested compile with cpu/memory hotplug off/on.
It was OK.

Acked-by: Yasunori Goto [EMAIL PROTECTED]


 (This is a resend of the earlier patch, this issue still needs to be
 fixed.)
 
 When building with memory hotplug enabled and cpu hotplug disabled, we
 end up with the following section mismatch:
 
 WARNING: mm/built-in.o(.text+0x4e58): Section mismatch: reference to
 .init.text: (between 'free_area_init_node' and '__build_all_zonelists')
 
 This happens as a result of:
 
 - free_area_init_node()
   - free_area_init_core()
 - zone_pcp_init() -- all __meminit up to this point
   - zone_batchsize() -- marked as __cpuinit 
 fo
 
 This happens because CONFIG_HOTPLUG_CPU=n sets __cpuinit to __init, but
 CONFIG_MEMORY_HOTPLUG=y unsets __meminit.
 
 Changing zone_batchsize() to __devinit fixes this.
 
 __devinit is the only thing that is common between CONFIG_HOTPLUG_CPU=y and
 CONFIG_MEMORY_HOTPLUG=y. In the long run, perhaps this should be moved to
 another section identifier completely. Without this, memory hot-add
 of offline nodes (via hotadd_new_pgdat()) will oops if CPU hotplug is
 not also enabled.
 
 Signed-off-by: Paul Mundt [EMAIL PROTECTED]
 
 --
 
  mm/page_alloc.c |2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/mm/page_alloc.c b/mm/page_alloc.c
 index bd8e335..05ace44 100644
 --- a/mm/page_alloc.c
 +++ b/mm/page_alloc.c
 @@ -1968,7 +1968,7 @@ void zone_init_free_lists(struct pglist_data *pgdat, 
 struct zone *zone,
   memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY)
  #endif
  
 -static int __cpuinit zone_batchsize(struct zone *zone)
 +static int __devinit zone_batchsize(struct zone *zone)
  {
   int batch;
  
 -
 To unsubscribe from this list: send the line unsubscribe linux-kernel in
 the body of a message to [EMAIL PROTECTED]
 More majordomo info at  http://vger.kernel.org/majordomo-info.html
 Please read the FAQ at  http://www.tux.org/lkml/

-- 
Yasunori Goto 


-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/


Re: mm: Fix memory/cpu hotplug section mismatch and oops.

2007-06-14 Thread Paul Mundt
On Thu, Jun 14, 2007 at 06:32:32PM +0900, Yasunori Goto wrote:
 Thanks. I tested compile with cpu/memory hotplug off/on.
 It was OK.
 
 Acked-by: Yasunori Goto [EMAIL PROTECTED]
 
It would be nice to have this for 2.6.22..
-
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/