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

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
  ...

1 files changed, 5 insertions, 10 deletions

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 2f8dd8e4225b..924b0ba74dfe 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -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);