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target: More core cleanups from AGrover (round 2)

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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
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4
include/target/target_core_device.h
View File

@@ -1,8 +1,8 @@
#ifndef TARGET_CORE_DEVICE_H
#define TARGET_CORE_DEVICE_H
extern int transport_get_lun_for_cmd(struct se_cmd *, u32);
extern int transport_get_lun_for_tmr(struct se_cmd *, u32);
extern int transport_lookup_cmd_lun(struct se_cmd *, u32);
extern int transport_lookup_tmr_lun(struct se_cmd *, u32);
extern struct se_dev_entry *core_get_se_deve_from_rtpi(
struct se_node_acl *, u16);
extern int core_free_device_list_for_node(struct se_node_acl *,