linux-toradex.git/include/linux/memory_hotplug.h, branch v2.6.16.15

[PATCH] memory-hotplug compile fix

2006-03-07T02:40:44+00:00

include/linux/memory_hotplug.h:53: warning: 'struct page' declared inside parameter list

(akpm: I tossed in a couple more possibly-needed-sometime struct decls too)

Signed-off-by: KAMEZAWA Hiroyuki 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] memory hotplug: sysfs and add/remove functions

2005-10-30T04:40:44+00:00

This adds generic memory add/remove and supporting functions for memory
hotplug into a new file as well as a memory hotplug kernel config option.

Individual architecture patches will follow.

For now, disable memory hotplug when swsusp is enabled.  There's a lot of
churn there right now.  We'll fix it up properly once it calms down.

Signed-off-by: Matt Tolentino 
Signed-off-by: Dave Hansen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] memory hotplug locking: zone span seqlock

2005-10-30T04:40:44+00:00

See the "fixup bad_range()" patch for more information, but this actually
creates a the lock to protect things making assumptions about a zone's size
staying constant at runtime.

Signed-off-by: Dave Hansen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] memory hotplug locking: node_size_lock

2005-10-30T04:40:44+00:00

pgdat->node_size_lock is basically only neeeded in one place in the normal
code: show_mem(), which is the arch-specific sysrq-m printing function.

Strictly speaking, the architectures not doing memory hotplug do no need this
locking in show_mem().  However, they are all included for completeness.  This
should also make any future consolidation of all of the implementations a
little more straightforward.

This lock is also held in the sparsemem code during a memory removal, as
sections are invalidated.  This is the place there pfn_valid() is made false
for a memory area that's being removed.  The lock is only required when doing
pfn_valid() operations on memory which the user does not already have a
reference on the page, such as in show_mem().

Signed-off-by: Dave Hansen 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds