@@ -301,7 +301,6 @@ struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost)
{
struct fc_host_statistics *fc_stats;
struct fc_lport *lport = shost_priv(shost);
- struct timespec v0, v1;
unsigned int cpu;
u64 fcp_in_bytes = 0;
u64 fcp_out_bytes = 0;
@@ -309,9 +308,7 @@ struct fc_host_statistics *fc_get_host_stats(struct Scsi_Host *shost)
fc_stats = &lport->host_stats;
memset(fc_stats, 0, sizeof(struct fc_host_statistics));
- jiffies_to_timespec(jiffies, &v0);
- jiffies_to_timespec(lport->boot_time, &v1);
- fc_stats->seconds_since_last_reset = (v0.tv_sec - v1.tv_sec);
+ fc_stats->seconds_since_last_reset = (lport->boot_time - jiffies) / HZ;
for_each_possible_cpu(cpu) {
struct fc_stats *stats;
The fc_get_host_stats() function contains a complex conversion from jiffies to timespec to seconds. As we try to get rid of uses of struct timespec, we can clean this up and replace it with a simpler computation. Simply dividing the difference in jiffies by HZ is not only much more efficient, it also avoids a problem that causes the seconds_since_last_reset value to be incorrect if jiffies has overrun since the 'boot_time' value was recorded. Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/scsi/libfc/fc_lport.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) -- 2.9.0