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author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-12-21 03:51:23 -0500 |
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committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-12-21 03:51:23 -0500 |
commit | dfa9d178cd28caf5d76bc4f37f4b3e7e8df8e697 (patch) | |
tree | d97ca7790d8a622cba9fdd19832decdb0aa6418a /drivers/target/loopback/tcm_loop.c | |
parent | 3f19f08a7ec74cfc50fbad3c5e615760afbd23a0 (diff) | |
parent | 7b4050381127ae11fcfc74a106d715a5fbbf888a (diff) |
Merge branch 'devfreq-for-next' of git://git.infradead.org/users/kmpark/linux-samsung into pm-devfreq
* 'devfreq-for-next' of git://git.infradead.org/users/kmpark/linux-samsung: (765 commits)
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
pci: Fix hotplug of Express Module with pci bridges
i2c-eg20t: correct the driver init order of pch_i2c_probe()
I2C: OMAP: fix FIFO usage for OMAP4
i2c-s3c2410: Fix return code of s3c24xx_i2c_parse_dt_gpio
i2c: i2c-s3c2410: Add a cpu_relax() to busy wait for bus idle
Linux 3.2-rc6
Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"
btrfs: lower the dirty balance poll interval
drm/i915/dp: Dither down to 6bpc if it makes the mode fit
drm/i915: enable semaphores on per-device defaults
drm/i915: don't set unpin_work if vblank_get fails
drm/i915: By default, enable RC6 on IVB and SNB when reasonable
iommu: Export intel_iommu_enabled to signal when iommu is in use
drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check
drm/i915: prevent division by zero when asking for chipset power
drm/i915: add PCH info to i915_capabilities
drm/i915: set the right SDVO transcoder for CPT
drm/i915: no-lvds quirk for ASUS AT5NM10T-I
sched: Fix select_idle_sibling() regression in selecting an idle SMT sibling
...
Diffstat (limited to 'drivers/target/loopback/tcm_loop.c')
-rw-r--r-- | drivers/target/loopback/tcm_loop.c | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 3df1c9b8ae6b..81d5832fbbd5 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c | |||
@@ -113,11 +113,9 @@ static struct se_cmd *tcm_loop_allocate_core_cmd( | |||
113 | scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr, | 113 | scsi_bufflen(sc), sc->sc_data_direction, sam_task_attr, |
114 | &tl_cmd->tl_sense_buf[0]); | 114 | &tl_cmd->tl_sense_buf[0]); |
115 | 115 | ||
116 | /* | ||
117 | * Signal BIDI usage with T_TASK(cmd)->t_tasks_bidi | ||
118 | */ | ||
119 | if (scsi_bidi_cmnd(sc)) | 116 | if (scsi_bidi_cmnd(sc)) |
120 | se_cmd->t_tasks_bidi = 1; | 117 | se_cmd->se_cmd_flags |= SCF_BIDI; |
118 | |||
121 | /* | 119 | /* |
122 | * Locate the struct se_lun pointer and attach it to struct se_cmd | 120 | * Locate the struct se_lun pointer and attach it to struct se_cmd |
123 | */ | 121 | */ |
@@ -148,27 +146,13 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd) | |||
148 | * Allocate the necessary tasks to complete the received CDB+data | 146 | * Allocate the necessary tasks to complete the received CDB+data |
149 | */ | 147 | */ |
150 | ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd); | 148 | ret = transport_generic_allocate_tasks(se_cmd, sc->cmnd); |
151 | if (ret == -ENOMEM) { | 149 | if (ret != 0) |
152 | /* Out of Resources */ | 150 | return ret; |
153 | return PYX_TRANSPORT_LU_COMM_FAILURE; | ||
154 | } else if (ret == -EINVAL) { | ||
155 | /* | ||
156 | * Handle case for SAM_STAT_RESERVATION_CONFLICT | ||
157 | */ | ||
158 | if (se_cmd->se_cmd_flags & SCF_SCSI_RESERVATION_CONFLICT) | ||
159 | return PYX_TRANSPORT_RESERVATION_CONFLICT; | ||
160 | /* | ||
161 | * Otherwise, return SAM_STAT_CHECK_CONDITION and return | ||
162 | * sense data. | ||
163 | */ | ||
164 | return PYX_TRANSPORT_USE_SENSE_REASON; | ||
165 | } | ||
166 | |||
167 | /* | 151 | /* |
168 | * For BIDI commands, pass in the extra READ buffer | 152 | * For BIDI commands, pass in the extra READ buffer |
169 | * to transport_generic_map_mem_to_cmd() below.. | 153 | * to transport_generic_map_mem_to_cmd() below.. |
170 | */ | 154 | */ |
171 | if (se_cmd->t_tasks_bidi) { | 155 | if (se_cmd->se_cmd_flags & SCF_BIDI) { |
172 | struct scsi_data_buffer *sdb = scsi_in(sc); | 156 | struct scsi_data_buffer *sdb = scsi_in(sc); |
173 | 157 | ||
174 | sgl_bidi = sdb->table.sgl; | 158 | sgl_bidi = sdb->table.sgl; |
@@ -194,12 +178,8 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd) | |||
194 | } | 178 | } |
195 | 179 | ||
196 | /* Tell the core about our preallocated memory */ | 180 | /* Tell the core about our preallocated memory */ |
197 | ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc), | 181 | return transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc), |
198 | scsi_sg_count(sc), sgl_bidi, sgl_bidi_count); | 182 | scsi_sg_count(sc), sgl_bidi, sgl_bidi_count); |
199 | if (ret < 0) | ||
200 | return PYX_TRANSPORT_LU_COMM_FAILURE; | ||
201 | |||
202 | return 0; | ||
203 | } | 183 | } |
204 | 184 | ||
205 | /* | 185 | /* |
@@ -1360,17 +1340,16 @@ void tcm_loop_drop_scsi_hba( | |||
1360 | { | 1340 | { |
1361 | struct tcm_loop_hba *tl_hba = container_of(wwn, | 1341 | struct tcm_loop_hba *tl_hba = container_of(wwn, |
1362 | struct tcm_loop_hba, tl_hba_wwn); | 1342 | struct tcm_loop_hba, tl_hba_wwn); |
1363 | int host_no = tl_hba->sh->host_no; | 1343 | |
1344 | pr_debug("TCM_Loop_ConfigFS: Deallocating emulated Target" | ||
1345 | " SAS Address: %s at Linux/SCSI Host ID: %d\n", | ||
1346 | tl_hba->tl_wwn_address, tl_hba->sh->host_no); | ||
1364 | /* | 1347 | /* |
1365 | * Call device_unregister() on the original tl_hba->dev. | 1348 | * Call device_unregister() on the original tl_hba->dev. |
1366 | * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will | 1349 | * tcm_loop_fabric_scsi.c:tcm_loop_release_adapter() will |
1367 | * release *tl_hba; | 1350 | * release *tl_hba; |
1368 | */ | 1351 | */ |
1369 | device_unregister(&tl_hba->dev); | 1352 | device_unregister(&tl_hba->dev); |
1370 | |||
1371 | pr_debug("TCM_Loop_ConfigFS: Deallocated emulated Target" | ||
1372 | " SAS Address: %s at Linux/SCSI Host ID: %d\n", | ||
1373 | config_item_name(&wwn->wwn_group.cg_item), host_no); | ||
1374 | } | 1353 | } |
1375 | 1354 | ||
1376 | /* Start items for tcm_loop_cit */ | 1355 | /* Start items for tcm_loop_cit */ |