Hi all,
I decided to go one step further and completely rip out zone's span_seqlock
and all related functions, since we should be ok by using {get,put}_online_mems()
on the reader side given that memory-hotplug is the only user fiddling with
those values.
Patch#1 and patch#2 could probably be squashed but I decided to keep them
separated so the intention becomes more clear.
Patch#3 only removes declarations that seem never be used.
Given that this is a much bigger surgery, I decided to drop any Acked-by/
Reviewed-by.
Oscar Salvador (3):
mm,page_alloc: Use {get,put}_online_mems() to get stable zone's values
mm,memory_hotplug: Drop unneeded locking
mm,memory_hotplug: Remove unneeded declarations
include/linux/memory_hotplug.h | 38 --------------------------------------
include/linux/mmzone.h | 23 +++++------------------
mm/memory_hotplug.c | 16 +---------------
mm/page_alloc.c | 15 ++++++---------
4 files changed, 12 insertions(+), 80 deletions(-)
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2.16.3
