| Message ID | 20230831112146.32595-2-njavali@marvell.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | qla2xxx: use raw_smp_processor_id instead of smp_processor_id | expand |
Nilesh, > Use raw_smp_processor_id instead of smp_processor_id. Also use > queue_work across the driver instead of queue_work_on thus avoiding > usage of smp_processor_id when CONFIG_DEBUG_PREEMPT is enabled. Applied to 6.6/scsi-staging, thanks!
On Thu, 31 Aug 2023 16:51:46 +0530, Nilesh Javali wrote: > Following Call Trace was observed, > > localhost kernel: nvme nvme0: NVME-FC{0}: controller connect complete > localhost kernel: BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u129:4/75092 > localhost kernel: nvme nvme0: NVME-FC{0}: new ctrl: NQN "nqn.1992-08.com.netapp:sn.b42d198afb4d11ecad6d00a098d6abfa:subsystem.PR_Channel2022_RH84_subsystem_291" > localhost kernel: caller is qla_nvme_post_cmd+0x216/0x1380 [qla2xxx] > localhost kernel: CPU: 6 PID: 75092 Comm: kworker/u129:4 Kdump: loaded Tainted: G B W OE --------- --- 5.14.0-70.22.1.el9_0.x86_64+debug #1 > localhost kernel: Hardware name: HPE ProLiant XL420 Gen10/ProLiant XL420 Gen10, BIOS U39 01/13/2022 > localhost kernel: Workqueue: nvme-wq nvme_async_event_work [nvme_core] > localhost kernel: Call Trace: > localhost kernel: dump_stack_lvl+0x57/0x7d > localhost kernel: check_preemption_disabled+0xc8/0xd0 > localhost kernel: qla_nvme_post_cmd+0x216/0x1380 [qla2xxx] > > [...] Applied to 6.6/scsi-fixes, thanks! [1/1] qla2xxx: use raw_smp_processor_id instead of smp_processor_id https://git.kernel.org/mkp/scsi/c/59f10a05b5c7
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index 0556969f6dc1..a4a56ab0ba74 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -577,7 +577,7 @@ fcport_is_bigger(fc_port_t *fcport) static inline struct qla_qpair * qla_mapq_nvme_select_qpair(struct qla_hw_data *ha, struct qla_qpair *qpair) { - int cpuid = smp_processor_id(); + int cpuid = raw_smp_processor_id(); if (qpair->cpuid != cpuid && ha->qp_cpu_map[cpuid]) { diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index e98788191897..d48007e18288 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3965,7 +3965,7 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha, if (!ha->flags.fw_started) return; - if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) { + if (rsp->qpair->cpuid != raw_smp_processor_id() || !rsp->qpair->rcv_intr) { rsp->qpair->rcv_intr = 1; if (!rsp->qpair->cpu_mapped) @@ -4468,7 +4468,7 @@ qla2xxx_msix_rsp_q(int irq, void *dev_id) } ha = qpair->hw; - queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work); + queue_work(ha->wq, &qpair->q_work); return IRQ_HANDLED; } @@ -4494,7 +4494,7 @@ qla2xxx_msix_rsp_q_hs(int irq, void *dev_id) wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT); spin_unlock_irqrestore(&ha->hardware_lock, flags); - queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work); + queue_work(ha->wq, &qpair->q_work); return IRQ_HANDLED; } diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 2b815a9928ea..2ef2dbac0db2 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -4425,8 +4425,7 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work); } else if (ha->msix_count) { if (cmd->atio.u.isp24.fcp_cmnd.rddata) - queue_work_on(smp_processor_id(), qla_tgt_wq, - &cmd->work); + queue_work(qla_tgt_wq, &cmd->work); else queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq, &cmd->work); diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 3b5ba4b47b3b..68a0e6a2fb6e 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -310,7 +310,7 @@ static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) cmd->trc_flags |= TRC_CMD_DONE; INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free); - queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); + queue_work(tcm_qla2xxx_free_wq, &cmd->work); } /* @@ -547,7 +547,7 @@ static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) cmd->trc_flags |= TRC_DATA_IN; cmd->cmd_in_wq = 1; INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work); - queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); + queue_work(tcm_qla2xxx_free_wq, &cmd->work); } static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
Following Call Trace was observed, localhost kernel: nvme nvme0: NVME-FC{0}: controller connect complete localhost kernel: BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u129:4/75092 localhost kernel: nvme nvme0: NVME-FC{0}: new ctrl: NQN "nqn.1992-08.com.netapp:sn.b42d198afb4d11ecad6d00a098d6abfa:subsystem.PR_Channel2022_RH84_subsystem_291" localhost kernel: caller is qla_nvme_post_cmd+0x216/0x1380 [qla2xxx] localhost kernel: CPU: 6 PID: 75092 Comm: kworker/u129:4 Kdump: loaded Tainted: G B W OE --------- --- 5.14.0-70.22.1.el9_0.x86_64+debug #1 localhost kernel: Hardware name: HPE ProLiant XL420 Gen10/ProLiant XL420 Gen10, BIOS U39 01/13/2022 localhost kernel: Workqueue: nvme-wq nvme_async_event_work [nvme_core] localhost kernel: Call Trace: localhost kernel: dump_stack_lvl+0x57/0x7d localhost kernel: check_preemption_disabled+0xc8/0xd0 localhost kernel: qla_nvme_post_cmd+0x216/0x1380 [qla2xxx] Use raw_smp_processor_id instead of smp_processor_id. Also use queue_work across the driver instead of queue_work_on thus avoiding usage of smp_processor_id when CONFIG_DEBUG_PREEMPT is enabled. Cc: stable@vger.kernel.org Suggested-by: John Garry <john.g.garry@oracle.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> --- drivers/scsi/qla2xxx/qla_inline.h | 2 +- drivers/scsi/qla2xxx/qla_isr.c | 6 +++--- drivers/scsi/qla2xxx/qla_target.c | 3 +-- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 4 ++-- 4 files changed, 7 insertions(+), 8 deletions(-)