Re: [PATCH] slab: avoid unnecessary touching of a partial slab

[Zhao Jin]

Sorry, one line in this patch does not conform to the coding style of
kernel source code. Here is the corrected version:

---
 mm/slab.c |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 6d90a09..0c7a212 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3121,11 +3121,13 @@ retry:
 		check_slabp(cachep, slabp);

 		/* move slabp to correct slabp list: */
-		list_del(&slabp->list);
-		if (slabp->free == BUFCTL_END)
+		if (slabp->free == BUFCTL_END) {
+			list_del(&slabp->list);
 			list_add(&slabp->list, &l3->slabs_full);
-		else
+		} else if (&slabp->list != l3->slabs_partial.next) {
+			list_del(&slabp->list);
 			list_add(&slabp->list, &l3->slabs_partial);
+		}
 	}

 must_grow:
-- 
1.7.4.1
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/