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| author | Robert Love <robert.w.love@intel.com> | 2009-03-31 15:51:50 -0700 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-04-03 09:22:58 -0500 |
| commit | 582b45bc577f78b5bfff3db874594ce2d962b846 (patch) | |
| tree | b0cfe95b235aeca9b967cba8446db58b8a102533 /drivers/scsi/libfc/fc_lport.c | |
| parent | 5e5e92df49d4dfbef9ba981297c7f76d189376ac (diff) | |
| download | kernel-crypto-582b45bc577f78b5bfff3db874594ce2d962b846.tar.gz kernel-crypto-582b45bc577f78b5bfff3db874594ce2d962b846.tar.xz kernel-crypto-582b45bc577f78b5bfff3db874594ce2d962b846.zip | |
[SCSI] fcoe: Use per-CPU kernel function for dev_stats instead of an array
Remove the hotplug creation of dev_stats, we allocate for all possible CPUs
now when we allocate the lport.
v2: Durring the 2.6.30 merge window, before these patches were comitted,
'percpu_ptr' was renamed 'per_cpu_ptr'. This latest update updates this
patch for the name change.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/libfc/fc_lport.c')
| -rw-r--r-- | drivers/scsi/libfc/fc_lport.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 7ef44501ecc..b8178ef398d 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -267,10 +267,10 @@ EXPORT_SYMBOL(fc_get_host_speed); struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost) { - int i; struct fc_host_statistics *fcoe_stats; struct fc_lport *lp = shost_priv(shost); struct timespec v0, v1; + unsigned int cpu; fcoe_stats = &lp->host_stats; memset(fcoe_stats, 0, sizeof(struct fc_host_statistics)); @@ -279,10 +279,11 @@ struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost) jiffies_to_timespec(lp->boot_time, &v1); fcoe_stats->seconds_since_last_reset = (v0.tv_sec - v1.tv_sec); - for_each_online_cpu(i) { - struct fcoe_dev_stats *stats = lp->dev_stats[i]; - if (stats == NULL) - continue; + for_each_possible_cpu(cpu) { + struct fcoe_dev_stats *stats; + + stats = per_cpu_ptr(lp->dev_stats, cpu); + fcoe_stats->tx_frames += stats->TxFrames; fcoe_stats->tx_words += stats->TxWords; fcoe_stats->rx_frames += stats->RxFrames; |