Oleg Nesterov b70c864d3c cfq: fix IOPRIO_CLASS_IDLE delays ... After the fresh boot: ionice -c3 -p $$ echo cfq >> /sys/block/XXX/queue/scheduler dd if=/dev/XXX of=/dev/null bs=512 count=1 Now dd hangs in D state and the queue is completely stalled for approximately INITIAL_JIFFIES + CFQ_IDLE_GRACE jiffies. This is because cfq_init_queue() forgets to initialize cfq_data->last_end_request. (I guess this patch is not complete, overflow is still possible) Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>		2007-11-07 09:46:13 +01:00
..
as-iosched.c	[BLOCK] Get rid of request_queue_t typedef	2007-07-24 09:28:11 +02:00
blktrace.c	Convert cpu_sibling_map to be a per cpu variable	2007-10-16 09:42:50 -07:00
bsg.c	bsg: mark struct file_operations const	2007-10-16 09:59:54 +02:00
cfq-iosched.c	cfq: fix IOPRIO_CLASS_IDLE delays	2007-11-07 09:46:13 +01:00
compat_ioctl.c	compat_ioctl: fix block device compat ioctl regression	2007-10-29 11:33:06 +01:00
deadline-iosched.c	Deadline iosched: Fix batching fairness	2007-11-02 08:47:25 +01:00
elevator.c	fix typo "insted" -> "instead"	2007-10-20 01:55:04 +02:00
genhd.c	Driver core: change add_uevent_var to use a struct	2007-10-12 14:51:01 -07:00
ioctl.c	compat_ioctl: move common block ioctls to compat_blkdev_ioctl	2007-10-10 09:26:00 +02:00
Kconfig	Only enable BLOCK_COMPAT if COMPAT is needed	2007-10-12 17:58:36 -07:00
Kconfig.iosched	update I/O sched Kconfig help texts - CFQ is now default, not AS.	2007-02-17 20:08:22 +01:00
ll_rw_blk.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block	2007-11-03 12:43:36 -07:00
Makefile	[BLOCK] Only include the compat ioctl code if CONFIG_BLOCK is set	2007-10-12 12:50:41 +02:00
noop-iosched.c	[BLOCK] Get rid of request_queue_t typedef	2007-07-24 09:28:11 +02:00
scsi_ioctl.c	[BLOCK] Get rid of request_queue_t typedef	2007-07-24 09:28:11 +02:00