Hello.
I'll post newest patches for memory hotadd as V2.
In this patch, pgdat is allocated when new node is comming.
To initialize pgdat and zones, a set of patches are necessary.
- to call memory_hotplug code from acpi container driver.
- to allcate and initialize pgdat, zone, zonelist.
- to initialize node_data[] array (ia64)
- to register sysfs file for new node.
This patch set is not only for ia64 but also for x86-64.
Note:
- kmalloc is used for pgdat allocation in this version.
So, even if pgdat is allocated, it will be allocated on the other node.
This is only to simplify patches a bit. :-P
This patches are for 2.6.16-rc3-mm1.
Followings are updates.
- update for 2.6.16-rc3-mm1.
- not only ia64, This is tested on x86_64 with NUMA emulation too. :-)
- wait_table_size() allcation is changed.
- Take max size as much as possible.
- Change using GFP_ATOMIC. It is inside of zone_init_lock.
(Warining message of might_sleep() is very well.)
- stop_machine_run(build_zonelists) is move to outside of lock.
- pgdat_insert() is moved to generic code to be used by x86_64.
- add decision of ZONE_DMA32 or ZONE_NORMAL to x86_64's add_memory().
- Make a separated patch to change from __init to __meminit.
- Fix some typo
Please comment.
--
Yasunori Goto
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