diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-01-02 13:26:34 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-27 23:08:35 +0100 |
| commit | eeff68c5618c8d0920b14533c70b2df007bd94b4 (patch) | |
| tree | 9dc0ef6ce138fe555e3fbe15bd4a33c8996a3c92 | |
| parent | scsi: respect unchecked_isa_dma for blk-mq (diff) | |
| download | linux-eeff68c5618c8d0920b14533c70b2df007bd94b4.tar.xz linux-eeff68c5618c8d0920b14533c70b2df007bd94b4.zip | |
scsi: remove scsi_cmd_dma_pool
There is no need for GFP_DMA allocations of the scsi_cmnd structures
themselves, all that might be DMAed to or from is the actual payload,
or the sense buffers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
| -rw-r--r-- | drivers/scsi/scsi.c | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 469aa0fb6de2..2e24f31622f8 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -102,17 +102,10 @@ struct scsi_host_cmd_pool { struct kmem_cache *cmd_slab; unsigned int users; char *cmd_name; - unsigned int slab_flags; }; static struct scsi_host_cmd_pool scsi_cmd_pool = { .cmd_name = "scsi_cmd_cache", - .slab_flags = SLAB_HWCACHE_ALIGN, -}; - -static struct scsi_host_cmd_pool scsi_cmd_dma_pool = { - .cmd_name = "scsi_cmd_cache(DMA)", - .slab_flags = SLAB_HWCACHE_ALIGN|SLAB_CACHE_DMA, }; static DEFINE_MUTEX(host_cmd_pool_mutex); @@ -290,8 +283,6 @@ scsi_find_host_cmd_pool(struct Scsi_Host *shost) { if (shost->hostt->cmd_size) return shost->hostt->cmd_pool; - if (shost->unchecked_isa_dma) - return &scsi_cmd_dma_pool; return &scsi_cmd_pool; } @@ -318,10 +309,6 @@ scsi_alloc_host_cmd_pool(struct Scsi_Host *shost) return NULL; } - pool->slab_flags = SLAB_HWCACHE_ALIGN; - if (shost->unchecked_isa_dma) - pool->slab_flags |= SLAB_CACHE_DMA; - if (hostt->cmd_size) hostt->cmd_pool = pool; @@ -349,7 +336,7 @@ scsi_get_host_cmd_pool(struct Scsi_Host *shost) if (!pool->users) { pool->cmd_slab = kmem_cache_create(pool->cmd_name, cmd_size, 0, - pool->slab_flags, NULL); + SLAB_HWCACHE_ALIGN, NULL); if (!pool->cmd_slab) goto out_free_pool; } |