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Subject[patch,v2 04/10] scsi: allocate scsi_cmnd-s from the device's local numa node
Date

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
---
drivers/scsi/scsi.c | 17 +++++++++++------
1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 2936b44..4db6973 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -173,16 +173,20 @@ static DEFINE_MUTEX(host_cmd_pool_mutex);
* NULL on failure
*/
static struct scsi_cmnd *
-scsi_pool_alloc_command(struct scsi_host_cmd_pool *pool, gfp_t gfp_mask)
+scsi_pool_alloc_command(struct scsi_host_cmd_pool *pool, gfp_t gfp_mask,
+ int node)
{
struct scsi_cmnd *cmd;

- cmd = kmem_cache_zalloc(pool->cmd_slab, gfp_mask | pool->gfp_mask);
+ cmd = kmem_cache_alloc_node(pool->cmd_slab,
+ gfp_mask | pool->gfp_mask | __GFP_ZERO,
+ node);
if (!cmd)
return NULL;

- cmd->sense_buffer = kmem_cache_alloc(pool->sense_slab,
- gfp_mask | pool->gfp_mask);
+ cmd->sense_buffer = kmem_cache_alloc_node(pool->sense_slab,
+ gfp_mask | pool->gfp_mask | __GFP_ZERO,
+ node);
if (!cmd->sense_buffer) {
kmem_cache_free(pool->cmd_slab, cmd);
return NULL;
@@ -223,7 +227,8 @@ scsi_host_alloc_command(struct Scsi_Host *shost, gfp_t gfp_mask)
{
struct scsi_cmnd *cmd;

- cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask);
+ cmd = scsi_pool_alloc_command(shost->cmd_pool, gfp_mask,
+ shost->numa_node);
if (!cmd)
return NULL;

@@ -435,7 +440,7 @@ struct scsi_cmnd *scsi_allocate_command(gfp_t gfp_mask)
if (!pool)
return NULL;

- return scsi_pool_alloc_command(pool, gfp_mask);
+ return scsi_pool_alloc_command(pool, gfp_mask, NUMA_NO_NODE);
}
EXPORT_SYMBOL(scsi_allocate_command);

--
1.7.1


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