diff options
author | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:13:28 -0800 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@linux.intel.com> | 2017-03-08 23:36:15 -0800 |
commit | 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch) | |
tree | d65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/drivers/target/target_core_xcopy.c | |
parent | c189ccac5702322ed843fe17057035b7222a59b6 (diff) |
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e
where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt
c) One patch has been backported thus revert the patch before applying.
filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run
Upstream status: backport
Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/drivers/target/target_core_xcopy.c')
-rw-r--r-- | kernel/drivers/target/target_core_xcopy.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/kernel/drivers/target/target_core_xcopy.c b/kernel/drivers/target/target_core_xcopy.c index 47fe94ee1..6415e9b09 100644 --- a/kernel/drivers/target/target_core_xcopy.c +++ b/kernel/drivers/target/target_core_xcopy.c @@ -104,7 +104,7 @@ static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op } mutex_unlock(&g_device_mutex); - pr_err("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n"); + pr_debug_ratelimited("Unable to locate 0xe4 descriptor for EXTENDED_COPY\n"); return -EINVAL; } @@ -185,7 +185,7 @@ static int target_xcopy_parse_tiddesc_e4(struct se_cmd *se_cmd, struct xcopy_op static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, struct xcopy_op *xop, unsigned char *p, - unsigned short tdll) + unsigned short tdll, sense_reason_t *sense_ret) { struct se_device *local_dev = se_cmd->se_dev; unsigned char *desc = p; @@ -193,6 +193,8 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, unsigned short start = 0; bool src = true; + *sense_ret = TCM_INVALID_PARAMETER_LIST; + if (offset != 0) { pr_err("XCOPY target descriptor list length is not" " multiple of %d\n", XCOPY_TARGET_DESC_LEN); @@ -243,9 +245,16 @@ static int target_xcopy_parse_target_descriptors(struct se_cmd *se_cmd, rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, true); else rc = target_xcopy_locate_se_dev_e4(se_cmd, xop, false); - - if (rc < 0) + /* + * If a matching IEEE NAA 0x83 descriptor for the requested device + * is not located on this node, return COPY_ABORTED with ASQ/ASQC + * 0x0d/0x02 - COPY_TARGET_DEVICE_NOT_REACHABLE to request the + * initiator to fall back to normal copy method. + */ + if (rc < 0) { + *sense_ret = TCM_COPY_TARGET_DEVICE_NOT_REACHABLE; goto out; + } pr_debug("XCOPY TGT desc: Source dev: %p NAA IEEE WWN: 0x%16phN\n", xop->src_dev, &xop->src_tid_wwn[0]); @@ -653,6 +662,7 @@ static int target_xcopy_read_source( rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0], remote_port, true); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; transport_generic_free_cmd(se_cmd, 0); return rc; } @@ -664,6 +674,7 @@ static int target_xcopy_read_source( rc = target_xcopy_issue_pt_cmd(xpt_cmd); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; transport_generic_free_cmd(se_cmd, 0); return rc; } @@ -714,6 +725,7 @@ static int target_xcopy_write_destination( remote_port, false); if (rc < 0) { struct se_cmd *src_cmd = &xop->src_pt_cmd->se_cmd; + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; /* * If the failure happened before the t_mem_list hand-off in * target_xcopy_setup_pt_cmd(), Reset memory + clear flag so that @@ -729,6 +741,7 @@ static int target_xcopy_write_destination( rc = target_xcopy_issue_pt_cmd(xpt_cmd); if (rc < 0) { + ec_cmd->scsi_status = xpt_cmd->se_cmd.scsi_status; se_cmd->se_cmd_flags &= ~SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC; transport_generic_free_cmd(se_cmd, 0); return rc; @@ -815,10 +828,15 @@ static void target_xcopy_do_work(struct work_struct *work) out: xcopy_pt_undepend_remotedev(xop); kfree(xop); - - pr_warn("target_xcopy_do_work: Setting X-COPY CHECK_CONDITION -> sending response\n"); - ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION; - target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION); + /* + * Don't override an error scsi status if it has already been set + */ + if (ec_cmd->scsi_status == SAM_STAT_GOOD) { + pr_warn_ratelimited("target_xcopy_do_work: rc: %d, Setting X-COPY" + " CHECK_CONDITION -> sending response\n", rc); + ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION; + } + target_complete_cmd(ec_cmd, ec_cmd->scsi_status); } sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) @@ -875,7 +893,7 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) " tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage, tdll, sdll, inline_dl); - rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll); + rc = target_xcopy_parse_target_descriptors(se_cmd, xop, &p[16], tdll, &ret); if (rc <= 0) goto out; |