Jens Axboe 0f78ab9899 Revert "Seperate read and write statistics of in_flight requests" ... This reverts commit a9327cac44. Corrado Zoccolo <czoccolo@gmail.com> reports: "with 2.6.32-rc1 I started getting the following strange output from "iostat -kx 2": Linux 2.6.31bisect (et2) 04/10/2009 _i686_ (2 CPU) avg-cpu: %user %nice %system %iowait %steal %idle 10,70 0,00 3,16 15,75 0,00 70,38 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 18,22 0,00 0,67 0,01 14,77 0,02 43,94 0,01 10,53 39043915,03 2629219,87 sdb 60,89 9,68 50,79 3,04 1724,43 50,52 65,95 0,70 13,06 488437,47 2629219,87 avg-cpu: %user %nice %system %iowait %steal %idle 2,72 0,00 0,74 0,00 0,00 96,53 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 avg-cpu: %user %nice %system %iowait %steal %idle 6,68 0,00 0,99 0,00 0,00 92,33 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 avg-cpu: %user %nice %system %iowait %steal %idle 4,40 0,00 0,73 1,47 0,00 93,40 Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await svctm %util sda 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 0,00 100,00 sdb 0,00 4,00 0,00 3,00 0,00 28,00 18,67 0,06 19,50 333,33 100,00 Global values for service time and utilization are garbage. For interval values, utilization is always 100%, and service time is higher than normal. I bisected it down to: [a9327cac44] Seperate read and write statistics of in_flight requests and verified that reverting just that commit indeed solves the issue on 2.6.32-rc1." So until this is debugged, revert the bad commit. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2009-10-04 21:04:38 +02:00
..
as-iosched.c	percpu: clean up percpu variable definitions	2009-06-24 15:13:48 +09:00
blk-barrier.c	block: allow large discard requests	2009-10-01 21:19:34 +02:00
blk-core.c	Revert "Seperate read and write statistics of in_flight requests"	2009-10-04 21:04:38 +02:00
blk-exec.c
blk-integrity.c	block: fix improper kobject release in blk_integrity_unregister	2009-07-28 09:11:14 +02:00
blk-ioc.c	block: prevent possible io_context->refcount overflow	2009-06-10 23:07:15 +02:00
blk-iopoll.c	block: use interrupts disabled version of raise_softirq_irqoff()	2009-09-11 14:33:32 +02:00
blk-map.c	block: Use accessor functions for queue limits	2009-05-22 23:22:54 +02:00
blk-merge.c	Revert "Seperate read and write statistics of in_flight requests"	2009-10-04 21:04:38 +02:00
blk-settings.c	block: allow large discard requests	2009-10-01 21:19:34 +02:00
blk-softirq.c
blk-sysfs.c	Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs	2009-10-01 21:15:46 +02:00
blk-tag.c	block: change the tag sync vs async restriction logic	2009-05-20 08:54:31 +02:00
blk-timeout.c
blk.h	block: implement mixed merge of different failfast requests	2009-09-11 14:33:30 +02:00
bsg.c	Driver-Core: extend devnode callbacks to provide permissions	2009-09-19 12:50:38 -07:00
cfq-iosched.c	cfq-iosched: don't delay async queue if it hasn't dispatched at all	2009-10-04 20:36:19 +02:00
compat_ioctl.c	block: Topology ioctls	2009-10-03 20:52:01 +02:00
deadline-iosched.c
elevator.c	bio: first step in sanitizing the bio->bi_rw flag testing	2009-09-11 14:33:31 +02:00
genhd.c	Revert "Seperate read and write statistics of in_flight requests"	2009-10-04 21:04:38 +02:00
ioctl.c	block: Topology ioctls	2009-10-03 20:52:01 +02:00
Kconfig	Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG	2009-08-04 22:10:17 +02:00
Kconfig.iosched
Makefile	block: add blk-iopoll, a NAPI like approach for block devices	2009-09-11 14:33:31 +02:00
noop-iosched.c
scsi_ioctl.c	block: call blk_scsi_ioctl_init()	2009-07-10 20:31:53 +02:00