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authorAndy Grover <agrover@redhat.com>2011-05-02 17:12:10 -0700
committerNicholas Bellinger <nab@linux-iscsi.org>2011-07-22 09:37:44 +0000
commita1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6 (patch)
tree8cbfd54b4829fd5f0ed206e15c81c1e626e7701d /drivers/target/loopback
parentdd3a5ad8e0c8706659f02c4a72b8c87f6f7ab479 (diff)
downloadvexpress-lsk-a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6.tar.gz
target: Updates from AGrover and HCH (round 3)
This patch contains a squashed version of third round series cleanups, improvements ,and simplfications from Andy and Christoph ahead of the heavy lifting between round 3 -> 4 for the target core SGL conversion. This include cleanups to the main target I/O path and other miscellaneous updates. target: Replace custom sg<->buf functions with lib funcs target: Simplify sector limiting code target: get_cdb should never return NULL target: Simplify transport_memcpy_se_mem_read_contig target: Use assignment rather than increment for t_task_cdbs target: Don't pass dma_size to generic_get_mem target: Pass sg with type scatterlist in transport_map_sg_to_mem target: Move task_sg_num next to task_sg in struct se_task target: inline struct se_transport_task into struct se_cmd target: Change name & semantics of transport_get_sectors() target: Remove unused members of se_cmd target: Rename se_cmd.t_task_cdbs to t_task_list_num target: Fix some spelling target: Remove unused var from transport_generic_do_tmr target: map_sg_to_mem: return sg_count in return value target/pscsi: Use min_t for sector limits target/pscsi: Unused param for pscsi_get_bio() target: Rename get_cdb_count to allocate_tasks target: Make transport_generic_new_cmd() available for iscsi-target target: Remove fabric callback to allocate iovecs target: Fix transport_generic_new_cmd WRITE comment (hch: Use __GFP_ZERO usage for alloc_pages() usage) Signed-off-by: Andy Grover <agrover@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/loopback')
-rw-r--r--drivers/target/loopback/tcm_loop.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index eeb7ee7ab9f..7ba2542aabe 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -118,7 +118,7 @@ static struct se_cmd *tcm_loop_allocate_core_cmd(
* Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi
*/
if (scsi_bidi_cmnd(sc))
- se_cmd->t_task.t_tasks_bidi = 1;
+ se_cmd->t_tasks_bidi = 1;
/*
* Locate the struct se_lun pointer and attach it to struct se_cmd
*/
@@ -169,7 +169,7 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd)
* For BIDI commands, pass in the extra READ buffer
* to transport_generic_map_mem_to_cmd() below..
*/
- if (se_cmd->t_task.t_tasks_bidi) {
+ if (se_cmd->t_tasks_bidi) {
struct scsi_data_buffer *sdb = scsi_in(sc);
sgl_bidi = sdb->table.sgl;
@@ -1424,13 +1424,6 @@ static int tcm_loop_register_configfs(void)
&tcm_loop_tpg_release_fabric_acl;
fabric->tf_ops.tpg_get_inst_index = &tcm_loop_get_inst_index;
/*
- * Since tcm_loop is mapping physical memory from Linux/SCSI
- * struct scatterlist arrays for each struct scsi_cmnd I/O,
- * we do not need TCM to allocate a iovec array for
- * virtual memory address mappings
- */
- fabric->tf_ops.alloc_cmd_iovecs = NULL;
- /*
* Used for setting up remaining TCM resources in process context
*/
fabric->tf_ops.new_cmd_map = &tcm_loop_new_cmd_map;