Messages in this thread Patch in this message | | | From | Wei Yang <> | Subject | [PATCH 2/6] mm/slub: not include cpu_partial data in cpu_slabs sysfs | Date | Wed, 17 May 2017 22:11:42 +0800 |
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There are four level slabs:
CPU CPU_PARTIAL PARTIAL FULL
In current implementation, cpu_slabs sysfs would give statistics including the first two levels. While there is another sysfs entry cpu_partial_slabs gives details on the second level slab statistics. Since each cpu has one slab for the first level, the current cpu_slabs output is easy to be calculated from cpu_partial_slabs.
This patch removes the cpu_partial data in cpu_slabs for more specific slab statistics and leave room to retrieve objects and total objects on CPU level in the future.
Signed-off-by: Wei Yang <richard.weiyang@gmail.com> --- mm/slub.c | 13 ------------- 1 file changed, 13 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c index 1100d2e75870..c7dddf22829d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -4762,19 +4762,6 @@ static ssize_t show_slab_objects(struct kmem_cache *s, total += x; nodes[node] += x; - - page = slub_percpu_partial_read_once(c); - if (page) { - node = page_to_nid(page); - if (flags & SO_TOTAL) - WARN_ON_ONCE(1); - else if (flags & SO_OBJECTS) - WARN_ON_ONCE(1); - else - x = page->pages; - total += x; - nodes[node] += x; - } } } -- 2.11.0
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