Messages in this thread Patch in this message | | | From | Joonsoo Kim <> | Subject | [PATCH 3/3] mm, slab: count freed pages via rcu as this task's reclaimed_slab | Date | Tue, 9 Apr 2013 10:21:18 +0900 |
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Currently, freed pages via rcu is not counted for reclaimed_slab, because it is freed in rcu context, not current task context. But, this free is initiated by this task, so counting this into this task's reclaimed_slab is meaningful to decide whether we continue reclaim, or not. So change code to count these pages for this task's reclaimed_slab.
Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
diff --git a/mm/slab.c b/mm/slab.c index 856e4a1..4d94bcb 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -1934,8 +1934,6 @@ static void kmem_freepages(struct kmem_cache *cachep, void *addr) } memcg_release_pages(cachep, cachep->gfporder); - if (current->reclaim_state) - current->reclaim_state->reclaimed_slab += nr_freed; free_memcg_kmem_pages((unsigned long)addr, cachep->gfporder); } @@ -2165,6 +2163,7 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slab */ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp) { + unsigned long nr_freed = (1 << cachep->gfporder); void *addr = slabp->s_mem - slabp->colouroff; slab_destroy_debugcheck(cachep, slabp); @@ -2180,6 +2179,9 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp) if (OFF_SLAB(cachep)) kmem_cache_free(cachep->slabp_cache, slabp); } + + if (current->reclaim_state) + current->reclaim_state->reclaimed_slab += nr_freed; } /** -- 1.7.9.5
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