[v2,0/2] Support multiple target nodes demotion

Message

Baolin Wang Nov. 11, 2021, 7:48 a.m. UTC

Hi,

This patch set is used to support multiple target nodes demotion
if a system has multiple slow memory nodes. Please help to review.
Thanks.

Changes from v1:
 - Add a new patch to allocate the node_demotion dynamically.
 - Update some comments.
 - Simplify some variables' name.

Changes from RFC v2:
 - Change to 'short' type for target nodes array.
 - Remove nodemask instead selecting target node directly.
 - Add WARN_ONCE() if the target nodes exceed the maximum value.

Changes from RFC v1:
 - Re-define the node_demotion structure.
 - Set up multiple target nodes by validating the node distance.
 - Add more comments.

Baolin Wang (2):
  mm: migrate: Support multiple target nodes demotion
  mm: migrate: Allocate the node_demotion structure dynamically

 mm/migrate.c | 158 +++++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 122 insertions(+), 36 deletions(-)