scsi: simplify scsi_free_sgtable()
Just pass in the command, no point in passing in the scatterlist
and scatterlist pool index seperately.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 960f949..7e1dcc5 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -741,13 +741,14 @@
EXPORT_SYMBOL(scsi_alloc_sgtable);
-void scsi_free_sgtable(struct scatterlist *sgl, int index)
+void scsi_free_sgtable(struct scsi_cmnd *cmd)
{
+ struct scatterlist *sgl = cmd->request_buffer;
struct scsi_host_sg_pool *sgp;
- BUG_ON(index >= SG_MEMPOOL_NR);
+ BUG_ON(cmd->sglist_len >= SG_MEMPOOL_NR);
- sgp = scsi_sg_pools + index;
+ sgp = scsi_sg_pools + cmd->sglist_len;
mempool_free(sgl, sgp->pool);
}
@@ -773,7 +774,7 @@
static void scsi_release_buffers(struct scsi_cmnd *cmd)
{
if (cmd->use_sg)
- scsi_free_sgtable(cmd->request_buffer, cmd->sglist_len);
+ scsi_free_sgtable(cmd);
/*
* Zero these out. They now point to freed memory, and it is
diff --git a/drivers/scsi/scsi_tgt_lib.c b/drivers/scsi/scsi_tgt_lib.c
index 66c692f..a91761c 100644
--- a/drivers/scsi/scsi_tgt_lib.c
+++ b/drivers/scsi/scsi_tgt_lib.c
@@ -332,7 +332,7 @@
scsi_tgt_uspace_send_status(cmd, tcmd->itn_id, tcmd->tag);
if (cmd->request_buffer)
- scsi_free_sgtable(cmd->request_buffer, cmd->sglist_len);
+ scsi_free_sgtable(cmd);
queue_work(scsi_tgtd, &tcmd->work);
}
@@ -373,7 +373,7 @@
}
eprintk("cmd %p cnt %d\n", cmd, cmd->use_sg);
- scsi_free_sgtable(cmd->request_buffer, cmd->sglist_len);
+ scsi_free_sgtable(cmd);
return -EINVAL;
}
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3b0bb66..a5439a4 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -129,7 +129,7 @@
extern void scsi_kunmap_atomic_sg(void *virt);
extern struct scatterlist *scsi_alloc_sgtable(struct scsi_cmnd *, gfp_t);
-extern void scsi_free_sgtable(struct scatterlist *, int);
+extern void scsi_free_sgtable(struct scsi_cmnd *);
extern int scsi_dma_map(struct scsi_cmnd *cmd);
extern void scsi_dma_unmap(struct scsi_cmnd *cmd);