[PATCH] mm/slub: branch optimization in free slowpath

From: Abel Wu The two conditions are mutually exclusive and gcc compiler will optimise this into if-else-like pattern. Given that the majority of free_slowpath is free_frozen, let's provide some hint to the compilers. Tests (perf bench sched messaging -g 20 -l 40, executed 10x after reboot)

[PATCH] mm/slub: sysfs cleanup on cpu partial when !SLUB_CPU_PARTIAL

From: Abel Wu Hide cpu partial related sysfs entries when !CONFIG_SLUB_CPU_PARTIAL to avoid confusion. Signed-off-by: Abel Wu --- mm/slub.c | 56 +++ 1 file changed, 32 insertions(+), 24 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index

[PATCH] mm/slub: fix missing ALLOC_SLOWPATH stat when bulk alloc

From: Abel Wu The ALLOC_SLOWPATH statistics is missing in bulk allocation now. Fix it by doing statistics in alloc slow path. Signed-off-by: Abel Wu --- mm/slub.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index df93a5a0e9a4..5d89e4064f83

[PATCH] mm/slub: make add_full() condition more explicit

From: Abel Wu The commit below is incomplete, as it didn't handle the add_full() part. commit a4d3f8916c65 ("slub: remove useless kmem_cache_debug() before remove_full()") This patch checks for SLAB_STORE_USER instead of kmem_cache_debug(), since that should be the only context in which we

[PATCH] mm/slub: remove useless kmem_cache_debug

From: Abel Wu The commit below is incomplete, as it didn't handle the add_full() part. commit a4d3f8916c65 ("slub: remove useless kmem_cache_debug() before remove_full()") Signed-off-by: Abel Wu --- mm/slub.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/mm/slub.c