Changes in v2: - Add VM_BUG_ON(!freelist) after get_freelist() for cpu partial slab case, since it's not possible to happen for this case. - Collect tags. - Link to v1: https://lore.kernel.org/r/20240117-slab-misc-v1-0-fd1c49ccbe70@xxxxxxxxxxxxx Hi, This series include a minor optimization of cpu partial slab fastpath, which directly load freelist from cpu partial slab in the likely case. It has small performance improvement in testing: perf bench sched messaging -g 5 -t -l 100000 mm-stable slub-optimize Total time 7.473 7.209 The other two patches are cleanups, which are included for convenience. Thanks for review and comment! Signed-off-by: Chengming Zhou <zhouchengming@xxxxxxxxxxxxx> --- Chengming Zhou (3): mm/slub: directly load freelist from cpu partial slab in the likely case mm/slub: remove full list manipulation for non-debug slab mm/slub: remove unused parameter in next_freelist_entry() mm/slub.c | 32 ++++++++++++++------------------ 1 file changed, 14 insertions(+), 18 deletions(-) --- base-commit: ab27740f76654ed58dd32ac0ba0031c18a6dea3b change-id: 20240117-slab-misc-5a5f37a51257 Best regards, -- Chengming Zhou <zhouchengming@xxxxxxxxxxxxx>
