[patch 3/4] slub: use is_kmalloc_cache in dma_kmalloc_cache

[David Rientjes <rientjes@google.com>]

dma_kmalloc_cache() can use the new is_kmalloc_cache() helper function.

Also removes an unnecessary assignment to local variable `s'.

Cc: Christoph Lameter <cl@linux.com>
Signed-off-by: David Rientjes <rientjes@google.com>
---
 mm/slub.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2649,13 +2649,12 @@ static noinline struct kmem_cache *dma_kmalloc_cache(int index, gfp_t flags)
 	text = kasprintf(flags & ~SLUB_DMA, "kmalloc_dma-%d",
 			 (unsigned int)realsize);
 
-	s = NULL;
 	for (i = 0; i < KMALLOC_CACHES; i++)
 		if (!kmalloc_caches[i].size)
 			break;
 
-	BUG_ON(i >= KMALLOC_CACHES);
 	s = kmalloc_caches + i;
+	BUG_ON(!is_kmalloc_cache(s));
 
 	/*
 	 * Must defer sysfs creation to a workqueue because we don't know

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>