On 15/09/16 06:06, Reza Arbab wrote:

Remove the check which prevents us from hotplugging into an empty node.

This limitation has been questioned before [1], and judging by the
response, there doesn't seem to be a reason we can't remove it. No issues
have been found in light testing.

[1] http://lkml.kernel.org/r/CAGZKiBrmkSa1yyhbf5hwGxubcjsE5SmkSMY4tpANERMe2UG4bg@mail.gmail.com
    http://lkml.kernel.org/r/20160511215051.GF22115@arbab-laptop.austin.ibm.com

Signed-off-by: Reza Arbab <redacted>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Cc: Nathan Fontenot <redacted>
Cc: Bharata B Rao <redacted>
---
 arch/powerpc/mm/numa.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

I presume you've tested with CONFIG_NODES_SHIFT of 8 (255 nodes?)

Balbir Singh.

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>