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Subject[PATCH v4 0/4] Refactoring for remove_memory_section/unregister_mem_sect_under_nodes
From: Oscar Salvador <>

v3 -> v4:
- Make nodemask_t a stack variable
- Added Reviewed-by from David and Pavel

v2 -> v3:
- NODEMASK_FREE can deal with NULL pointers, so do not
make it conditional (by David).
- Split up node_online's check patch (David's suggestion)
- Added Reviewed-by from Andrew and David
- Fix warnings

This patchset does some cleanups and refactoring in the memory-hotplug code.

The first and the second patch are pretty straightforward, as they
only remove unused arguments/checks.

The third patch refactors unregister_mem_sect_under_nodes a bit by re-defining
nodemask_t as a stack variable. (More details in Patch3's changelog)

The fourth patch removes a node_online check. (More details in Patch4's changelog)
Since this change has a patch for itself, we could quickly revert it
if we notice that something is wrong with it, or drop it if people
are concerned about it.

Oscar Salvador (4):
mm/memory-hotplug: Drop unused args from remove_memory_section
mm/memory_hotplug: Drop mem_blk check from
mm/memory_hotplug: Define nodemask_t as a stack variable
mm/memory_hotplug: Drop node_online check in

drivers/base/memory.c | 5 ++---
drivers/base/node.c | 22 ++++++----------------
include/linux/node.h | 5 ++---
3 files changed, 10 insertions(+), 22 deletions(-)


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