[PATCHv3 0/4] zsmalloc: make zspage chain size configurable

From: Sergey Senozhatsky
Date: Tue Jan 17 2023 - 20:02:18 EST


Hi,

This turns hard coded limit on maximum number of physical
pages per-zspage into a config option. It also increases the default
limit from 4 to 8.

v3:
-- Fixed zspage isolated bitfield overflow (Mike)
-- Fixed parisc64 build failure (0day)
-- Minumum chain size value is 4 now (which has been zsmalloc default
for ages)
-- Picked up Minchan's Acked-by

Sergey Senozhatsky (4):
zsmalloc: rework zspage chain size selection
zsmalloc: skip chain size calculation for pow_of_2 classes
zsmalloc: make zspage chain size configurable
zsmalloc: set default zspage chain size to 8

Documentation/mm/zsmalloc.rst | 168 ++++++++++++++++++++++++++++++++++
mm/Kconfig | 19 ++++
mm/zsmalloc.c | 71 ++++++--------
3 files changed, 213 insertions(+), 45 deletions(-)

--
2.39.0.314.g84b9a713c41-goog