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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>		16 years ago
..
Kconfig	Make SCSI SG v4 driver enabled by default and remove EXPERIMENTAL dependency, since udev depends on BSG	16 years ago
Kconfig.iosched	…
Makefile	block: add blk-iopoll, a NAPI like approach for block devices	16 years ago
as-iosched.c	percpu: clean up percpu variable definitions	16 years ago
blk-barrier.c	block: allow large discard requests	16 years ago
blk-core.c	Revert "Seperate read and write statistics of in_flight requests"	16 years ago
blk-exec.c	…
blk-integrity.c	block: fix improper kobject release in blk_integrity_unregister	16 years ago
blk-ioc.c	block: prevent possible io_context->refcount overflow	16 years ago
blk-iopoll.c	block: use interrupts disabled version of raise_softirq_irqoff()	16 years ago
blk-map.c	block: Use accessor functions for queue limits	16 years ago
blk-merge.c	Revert "Seperate read and write statistics of in_flight requests"	16 years ago
blk-settings.c	block: allow large discard requests	16 years ago
blk-softirq.c	…
blk-sysfs.c	Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs	16 years ago
blk-tag.c	block: change the tag sync vs async restriction logic	16 years ago
blk-timeout.c	…
blk.h	block: implement mixed merge of different failfast requests	16 years ago
bsg.c	Driver-Core: extend devnode callbacks to provide permissions	16 years ago
cfq-iosched.c	cfq-iosched: don't delay async queue if it hasn't dispatched at all	16 years ago
compat_ioctl.c	block: Topology ioctls	16 years ago
deadline-iosched.c	…
elevator.c	bio: first step in sanitizing the bio->bi_rw flag testing	16 years ago
genhd.c	Revert "Seperate read and write statistics of in_flight requests"	16 years ago
ioctl.c	block: Topology ioctls	16 years ago
noop-iosched.c	…
scsi_ioctl.c	block: call blk_scsi_ioctl_init()	16 years ago