The patch titled
Subject: block/blk-mq.c: use kmalloc_array_node()
has been added to the -mm tree. Its filename is
block-use-kmalloc_array_node.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/block-use-kmalloc_array_node.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/block-use-kmalloc_array_node.patch
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------------------------------------------------------
From: Johannes Thumshirn <jthumshirn@xxxxxxx>
Subject: block/blk-mq.c: use kmalloc_array_node()
Now that we have a NUMA-aware version of kmalloc_array() we can use it
instead of kmalloc_node() without an overflow check in the size
calculation.
Link: http://lkml.kernel.org/r/20170927082038.3782-3-jthumshirn@xxxxxxx
Signed-off-by: Johannes Thumshirn <jthumshirn@xxxxxxx>
Reviewed-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Damien Le Moal <damien.lemoal@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Doug Ledford <dledford@xxxxxxxxxx>
Cc: Hal Rosenstock <hal.rosenstock@xxxxxxxxx>
Cc: Mike Marciniszyn <infinipath@xxxxxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>
Cc: Sean Hefty <sean.hefty@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
block/blk-mq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN block/blk-mq.c~block-use-kmalloc_array_node block/blk-mq.c
--- a/block/blk-mq.c~block-use-kmalloc_array_node
+++ a/block/blk-mq.c
@@ -1979,7 +1979,7 @@ static int blk_mq_init_hctx(struct reque
* Allocate space for all possible cpus to avoid allocation at
* runtime
*/
- hctx->ctxs = kmalloc_node(nr_cpu_ids * sizeof(void *),
+ hctx->ctxs = kmalloc_array_node(nr_cpu_ids, sizeof(void *),
GFP_KERNEL, node);
if (!hctx->ctxs)
goto unregister_cpu_notifier;
_
Patches currently in -mm which might be from jthumshirn@xxxxxxx are
mm-add-kmalloc_array_node-and-kcalloc_node.patch
block-use-kmalloc_array_node.patch
ib-qib-use-kmalloc_array_node.patch
ib-rdmavt-use-kmalloc_array_node.patch
mm-mempool-use-kmalloc_array_node.patch
rds-ib-use-kmalloc_array_node.patch
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