lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

target: More core cleanups from AGrover (round 2)

Browse Source 
This patch contains the squashed version of second round of target core
cleanups and simplifications and Andy and Co.   It also contains a handful
of fixes to address bugs the original series and other minor cleanups.

Here is the condensed shortlog:

target: Remove unneeded casts to void*
target: Rename get_lun_for_{cmd,tmr} to lookup_{cmd,tmr}_lun
target: Make t_task a member of se_cmd, not a pointer
target: Handle functions returning "-2"
target: Use cmd->se_dev over cmd->se_lun->lun_se_dev
target: Embed qr in struct se_cmd
target: Replace embedded struct se_queue_req with a list_head
target: Rename list_heads that are nodes in struct se_cmd to "*_node"
target: Fold transport_device_setup_cmd() into lookup_{tmr,cmd}_lun()
target: Make t_mem_list and t_mem_list_bidi members of t_task
target: Add comment & cleanup transport_map_sg_to_mem()
target: Remove unneeded checks in transport_free_pages()

(Roland: Fix se_queue_req removal leftovers OOPs)
(nab: Fix transport_lookup_tmr_lun failure case)
(nab: Fix list_empty(&cmd->t_task.t_mem_bidi_list) inversion bugs)

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover
2011-07-19 10:26:37 +00:00
committed by Nicholas Bellinger
parent f22c119683
commit 5951146dea
19 changed files with 769 additions and 949 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
include/target/target_core_base.h
View File

@@ -123,7 +123,7 @@ enum se_cmd_flags_table {
SCF_SENT_DELAYED_TAS = 0x00020000,
SCF_ALUA_NON_OPTIMIZED = 0x00040000,
SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000,
SCF_PASSTHROUGH_SG_TO_MEM = 0x00100000,
SCF_UNUSED = 0x00100000,
SCF_PASSTHROUGH_CONTIG_TO_SG = 0x00200000,
SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
SCF_EMULATE_SYNC_CACHE = 0x00800000,
@@ -452,9 +452,9 @@ struct se_transport_task {
* and other HW target mode fabric modules.
*/
struct scatterlist *t_task_pt_sgl;
struct list_head *t_mem_list;
struct list_head t_mem_list;
/* Used for BIDI READ */
struct list_head *t_mem_bidi_list;
struct list_head t_mem_bidi_list;
struct list_head t_task_list;
} ____cacheline_aligned;
@@ -523,9 +523,9 @@ struct se_cmd {
atomic_t transport_sent;
/* Used for sense data */
void *sense_buffer;
struct list_head se_delayed_list;
struct list_head se_ordered_list;
struct list_head se_lun_list;
struct list_head se_delayed_node;
struct list_head se_ordered_node;
struct list_head se_lun_node;
struct se_device *se_dev;
struct se_dev_entry *se_deve;
struct se_device *se_obj_ptr;
@@ -534,9 +534,8 @@ struct se_cmd {
/* Only used for internal passthrough and legacy TCM fabric modules */
struct se_session *se_sess;
struct se_tmr_req *se_tmr_req;
/* t_task is setup to t_task_backstore in transport_init_se_cmd() */
struct se_transport_task *t_task;
struct se_transport_task t_task_backstore;
struct se_transport_task t_task;
struct list_head se_queue_node;
struct target_core_fabric_ops *se_tfo;
int (*transport_emulate_cdb)(struct se_cmd *);
void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *);