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Merge branch 'for-3.15/core' of git://git.kernel.dk/linux-block

Browse source 
Pull core block layer updates from Jens Axboe:
 "This is the pull request for the core block IO bits for the 3.15
  kernel.  It's a smaller round this time, it contains:

   - Various little blk-mq fixes and additions from Christoph and
     myself.

   - Cleanup of the IPI usage from the block layer, and associated
     helper code.  From Frederic Weisbecker and Jan Kara.

   - Duplicate code cleanup in bio-integrity from Gu Zheng.  This will
     give you a merge conflict, but that should be easy to resolve.

   - blk-mq notify spinlock fix for RT from Mike Galbraith.

   - A blktrace partial accounting bug fix from Roman Pen.

   - Missing REQ_SYNC detection fix for blk-mq from Shaohua Li"

* 'for-3.15/core' of git://git.kernel.dk/linux-block: (25 commits)
  blk-mq: add REQ_SYNC early
  rt,blk,mq: Make blk_mq_cpu_notify_lock a raw spinlock
  blk-mq: support partial I/O completions
  blk-mq: merge blk_mq_insert_request and blk_mq_run_request
  blk-mq: remove blk_mq_alloc_rq
  blk-mq: don't dump CPU -> hw queue map on driver load
  blk-mq: fix wrong usage of hctx->state vs hctx->flags
  blk-mq: allow blk_mq_init_commands() to return failure
  block: remove old blk_iopoll_enabled variable
  blktrace: fix accounting of partially completed requests
  smp: Rename __smp_call_function_single() to smp_call_function_single_async()
  smp: Remove wait argument from __smp_call_function_single()
  watchdog: Simplify a little the IPI call
  smp: Move __smp_call_function_single() below its safe version
  smp: Consolidate the various smp_call_function_single() declensions
  smp: Teach __smp_call_function_single() to check for offline cpus
  smp: Remove unused list_head from csd
  smp: Iterate functions through llist_for_each_entry_safe()
  block: Stop abusing rq->csd.list in blk-softirq
  block: Remove useless IPI struct initialization
  ...
This commit is contained in:
Linus Torvalds 2014-04-01 19:19:15 -07:00
commit 7a48837732
33 changed files with 352 additions and 378 deletions
Download patch file Download diff file Expand all files Collapse all files

206
drivers/scsi/be2iscsi/be_main.c
View file

@ -898,7 +898,6 @@ static irqreturn_t be_isr_msix(int irq, void *dev_id)
struct be_queue_info *cq;
unsigned int num_eq_processed;
struct be_eq_obj *pbe_eq;
unsigned long flags;
pbe_eq = dev_id;
eq = &pbe_eq->q;
@ -907,31 +906,15 @@ static irqreturn_t be_isr_msix(int irq, void *dev_id)
phba = pbe_eq->phba;
num_eq_processed = 0;
if (blk_iopoll_enabled) {
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
blk_iopoll_sched(&pbe_eq->iopoll);
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
blk_iopoll_sched(&pbe_eq->iopoll);
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
num_eq_processed++;
}
} else {
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
spin_lock_irqsave(&phba->isr_lock, flags);
pbe_eq->todo_cq = true;
spin_unlock_irqrestore(&phba->isr_lock, flags);
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
num_eq_processed++;
}
if (pbe_eq->todo_cq)
queue_work(phba->wq, &pbe_eq->work_cqs);
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
num_eq_processed++;
}
if (num_eq_processed)
@ -952,7 +935,6 @@ static irqreturn_t be_isr(int irq, void *dev_id)
struct hwi_context_memory *phwi_context;
struct be_eq_entry *eqe = NULL;
struct be_queue_info *eq;
struct be_queue_info *cq;
struct be_queue_info *mcc;
unsigned long flags, index;
unsigned int num_mcceq_processed, num_ioeq_processed;
@ -978,72 +960,40 @@ static irqreturn_t be_isr(int irq, void *dev_id)
num_ioeq_processed = 0;
num_mcceq_processed = 0;
if (blk_iopoll_enabled) {
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (((eqe->dw[offsetof(struct amap_eq_entry,
resource_id) / 32] &
EQE_RESID_MASK) >> 16) == mcc->id) {
spin_lock_irqsave(&phba->isr_lock, flags);
pbe_eq->todo_mcc_cq = true;
spin_unlock_irqrestore(&phba->isr_lock, flags);
num_mcceq_processed++;
} else {
if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
blk_iopoll_sched(&pbe_eq->iopoll);
num_ioeq_processed++;
}
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
}
if (num_ioeq_processed || num_mcceq_processed) {
if (pbe_eq->todo_mcc_cq)
queue_work(phba->wq, &pbe_eq->work_cqs);
if ((num_mcceq_processed) && (!num_ioeq_processed))
hwi_ring_eq_db(phba, eq->id, 0,
(num_ioeq_processed +
num_mcceq_processed) , 1, 1);
else
hwi_ring_eq_db(phba, eq->id, 0,
(num_ioeq_processed +
num_mcceq_processed), 0, 1);
return IRQ_HANDLED;
} else
return IRQ_NONE;
} else {
cq = &phwi_context->be_cq[0];
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (((eqe->dw[offsetof(struct amap_eq_entry,
resource_id) / 32] &
EQE_RESID_MASK) >> 16) != cq->id) {
spin_lock_irqsave(&phba->isr_lock, flags);
pbe_eq->todo_mcc_cq = true;
spin_unlock_irqrestore(&phba->isr_lock, flags);
} else {
spin_lock_irqsave(&phba->isr_lock, flags);
pbe_eq->todo_cq = true;
spin_unlock_irqrestore(&phba->isr_lock, flags);
}
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
& EQE_VALID_MASK) {
if (((eqe->dw[offsetof(struct amap_eq_entry,
resource_id) / 32] &
EQE_RESID_MASK) >> 16) == mcc->id) {
spin_lock_irqsave(&phba->isr_lock, flags);
pbe_eq->todo_mcc_cq = true;
spin_unlock_irqrestore(&phba->isr_lock, flags);
num_mcceq_processed++;
} else {
if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
blk_iopoll_sched(&pbe_eq->iopoll);
num_ioeq_processed++;
}
if (pbe_eq->todo_cq || pbe_eq->todo_mcc_cq)
AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
queue_tail_inc(eq);
eqe = queue_tail_node(eq);
}
if (num_ioeq_processed || num_mcceq_processed) {
if (pbe_eq->todo_mcc_cq)
queue_work(phba->wq, &pbe_eq->work_cqs);
if (num_ioeq_processed) {
if ((num_mcceq_processed) && (!num_ioeq_processed))
hwi_ring_eq_db(phba, eq->id, 0,
num_ioeq_processed, 1, 1);
return IRQ_HANDLED;
} else
return IRQ_NONE;
}
(num_ioeq_processed +
num_mcceq_processed) , 1, 1);
else
hwi_ring_eq_db(phba, eq->id, 0,
(num_ioeq_processed +
num_mcceq_processed), 0, 1);
return IRQ_HANDLED;
} else
return IRQ_NONE;
}
static int beiscsi_init_irqs(struct beiscsi_hba *phba)
@ -5263,11 +5213,10 @@ static void beiscsi_quiesce(struct beiscsi_hba *phba,
}
pci_disable_msix(phba->pcidev);
if (blk_iopoll_enabled)
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_disable(&pbe_eq->iopoll);
}
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_disable(&pbe_eq->iopoll);
}
if (unload_state == BEISCSI_CLEAN_UNLOAD) {
destroy_workqueue(phba->wq);
@ -5478,32 +5427,18 @@ static void beiscsi_eeh_resume(struct pci_dev *pdev)
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
if (blk_iopoll_enabled) {
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
be_iopoll);
blk_iopoll_enable(&pbe_eq->iopoll);
}
i = (phba->msix_enabled) ? i : 0;
/* Work item for MCC handling */
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
} else {
if (phba->msix_enabled) {
for (i = 0; i <= phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs,
beiscsi_process_all_cqs);
}
} else {
pbe_eq = &phwi_context->be_eq[0];
INIT_WORK(&pbe_eq->work_cqs,
beiscsi_process_all_cqs);
}
blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
be_iopoll);
blk_iopoll_enable(&pbe_eq->iopoll);
}
i = (phba->msix_enabled) ? i : 0;
/* Work item for MCC handling */
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
ret = beiscsi_init_irqs(phba);
if (ret < 0) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@ -5665,32 +5600,18 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
phwi_ctrlr = phba->phwi_ctrlr;
phwi_context = phwi_ctrlr->phwi_ctxt;
if (blk_iopoll_enabled) {
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
be_iopoll);
blk_iopoll_enable(&pbe_eq->iopoll);
}
i = (phba->msix_enabled) ? i : 0;
/* Work item for MCC handling */
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
} else {
if (phba->msix_enabled) {
for (i = 0; i <= phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs,
beiscsi_process_all_cqs);
}
} else {
pbe_eq = &phwi_context->be_eq[0];
INIT_WORK(&pbe_eq->work_cqs,
beiscsi_process_all_cqs);
}
blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
be_iopoll);
blk_iopoll_enable(&pbe_eq->iopoll);
}
i = (phba->msix_enabled) ? i : 0;
/* Work item for MCC handling */
pbe_eq = &phwi_context->be_eq[i];
INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
ret = beiscsi_init_irqs(phba);
if (ret < 0) {
beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@ -5719,11 +5640,10 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
free_blkenbld:
destroy_workqueue(phba->wq);
if (blk_iopoll_enabled)
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_disable(&pbe_eq->iopoll);
}
for (i = 0; i < phba->num_cpus; i++) {
pbe_eq = &phwi_context->be_eq[i];
blk_iopoll_disable(&pbe_eq->iopoll);
}
free_twq:
beiscsi_clean_port(phba);
beiscsi_free_mem(phba);

15
drivers/scsi/ipr.c
View file

@ -3670,16 +3670,14 @@ static ssize_t ipr_store_iopoll_weight(struct device *dev,
return strlen(buf);
}
if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
for (i = 1; i < ioa_cfg->hrrq_num; i++)
blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);
}
spin_lock_irqsave(shost->host_lock, lock_flags);
ioa_cfg->iopoll_weight = user_iopoll_weight;
if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
for (i = 1; i < ioa_cfg->hrrq_num; i++) {
blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
ioa_cfg->iopoll_weight, ipr_iopoll);
@ -5525,8 +5523,7 @@ static irqreturn_t ipr_isr_mhrrq(int irq, void *devp)
return IRQ_NONE;
}
if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
hrrq->toggle_bit) {
if (!blk_iopoll_sched_prep(&hrrq->iopoll))
@ -9975,8 +9972,7 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
ioa_cfg->host->max_channel = IPR_VSET_BUS;
ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
for (i = 1; i < ioa_cfg->hrrq_num; i++) {
blk_iopoll_init(&ioa_cfg->hrrq[i].iopoll,
ioa_cfg->iopoll_weight, ipr_iopoll);
@ -10005,8 +10001,7 @@ static void ipr_shutdown(struct pci_dev *pdev)
int i;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
if (blk_iopoll_enabled && ioa_cfg->iopoll_weight &&
ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
ioa_cfg->iopoll_weight = 0;
for (i = 1; i < ioa_cfg->hrrq_num; i++)
blk_iopoll_disable(&ioa_cfg->hrrq[i].iopoll);