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authorDave Hansen <dave.hansen@linux.intel.com>2014-04-08 13:44:27 -0700
committerPekka Enberg <penberg@kernel.org>2014-04-11 10:06:06 +0300
commit34bf6ef94a835a8f1d8abd3e7d38c6c08d205867 (patch)
treea5e285e441036ed1d78033192b7eaf74300f4984 /mm/slab.c
parent5f0985bb1123b48bbfc632006bdbe76d3dfea76b (diff)
downloadlwn-34bf6ef94a835a8f1d8abd3e7d38c6c08d205867.tar.gz
lwn-34bf6ef94a835a8f1d8abd3e7d38c6c08d205867.zip
mm: slab/slub: use page->list consistently instead of page->lru
'struct page' has two list_head fields: 'lru' and 'list'. Conveniently, they are unioned together. This means that code can use them interchangably, which gets horribly confusing like with this nugget from slab.c: > list_del(&page->lru); > if (page->active == cachep->num) > list_add(&page->list, &n->slabs_full); This patch makes the slab and slub code use page->lru universally instead of mixing ->list and ->lru. So, the new rule is: page->lru is what the you use if you want to keep your page on a list. Don't like the fact that it's not called ->list? Too bad. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Acked-by: Christoph Lameter <cl@linux.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slab.c')
-rw-r--r--mm/slab.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 8dd8e0875e4c..f6718197cdd0 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2922,9 +2922,9 @@ retry:
/* move slabp to correct slabp list: */
list_del(&page->lru);
if (page->active == cachep->num)
- list_add(&page->list, &n->slabs_full);
+ list_add(&page->lru, &n->slabs_full);
else
- list_add(&page->list, &n->slabs_partial);
+ list_add(&page->lru, &n->slabs_partial);
}
must_grow: