From de400d6b78d15a73023485f050bc6b1709dc7a79 Mon Sep 17 00:00:00 2001 From: Peter Oberparleiter Date: Sun, 30 Oct 2011 15:16:04 +0100 Subject: [S390] fix mismatch in summation of I/O IRQ statistics Current IRQ statistics support does not show detail counts for I/O interrupts which are processed internally only. The result is a summation count which is way off such as this one: CPU0 CPU1 CPU2 I/O: 1331 710 442 [...] QAI: 15 16 16 [I/O] QDIO Adapter Interrupt QDI: 1 0 0 [I/O] QDIO Interrupt DAS: 706 645 381 [I/O] DASD C15: 26 10 0 [I/O] 3215 C70: 0 0 0 [I/O] 3270 TAP: 0 0 0 [I/O] Tape VMR: 0 0 0 [I/O] Unit Record Devices LCS: 0 0 0 [I/O] LCS CLW: 0 0 0 [I/O] CLAW CTC: 0 0 0 [I/O] CTC APB: 0 0 0 [I/O] AP Bus Fix this by moving I/O interrupt accounting into the common I/O layer. Signed-off-by: Peter Oberparleiter Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 2 -- drivers/s390/block/dasd_eckd.c | 1 + drivers/s390/block/dasd_fba.c | 1 + 3 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/s390/block') diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index a1d3ddba99cc..46054c75cf31 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -11,7 +11,6 @@ #define KMSG_COMPONENT "dasd" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt -#include #include #include #include @@ -1594,7 +1593,6 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm, unsigned long long now; int expires; - kstat_cpu(smp_processor_id()).irqs[IOINT_DAS]++; if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { case -EIO: diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 6e835c9fdfcb..0e9c4dcf1452 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -3998,6 +3998,7 @@ static struct ccw_driver dasd_eckd_driver = { .thaw = dasd_generic_restore_device, .restore = dasd_generic_restore_device, .uc_handler = dasd_generic_uc_handler, + .int_class = IOINT_DAS, }; /* diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 4b71b1164868..a62a75358eb9 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -79,6 +79,7 @@ static struct ccw_driver dasd_fba_driver = { .freeze = dasd_generic_pm_freeze, .thaw = dasd_generic_restore_device, .restore = dasd_generic_restore_device, + .int_class = IOINT_DAS, }; static void -- cgit v1.2.3