linux-toradex.git/block, branch v2.6.19-rc4

[PATCH] CFQ: bad locking in changed_ioprio()

2006-10-30T19:01:50+00:00

When the ioprio code recently got juggled a bit, a bug was introduced.
changed_ioprio() is no longer called with interrupts disabled, so using
plain spin_lock() on the queue_lock is a bug.

Signed-off-by: Jens Axboe 
Signed-off-by: Linus Torvalds

[PATCH] CFQ: use irq safe locking in cfq_cic_link()

2006-10-30T18:21:58+00:00

If cfq_set_request() is called for a new process AND a non-fs io
request (so that __GFP_WAIT may not be set), cfq_cic_link() may
use spin_lock_irq() and spin_unlock_irq() with interrupts already
disabled.

Fix is to always use irq safe locking in cfq_cic_link()

Acked-By: Arjan van de Ven 
Acked-by: Ingo Molnar 
Signed-off-by: Jens Axboe 
Signed-off-by: Linus Torvalds

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20T17:26:35+00:00

Separate out the concept of "queue congestion" from "backing-dev congestion".
Congestion is a backing-dev concept, not a queue concept.

The blk_* congestion functions are retained, as wrappers around the core
backing-dev congestion functions.

This proper layering is needed so that NFS can cleanly use the congestion
functions, and so that CONFIG_BLOCK=n actually links.

Cc: "Thomas Maier" 
Cc: "Jens Axboe" 
Cc: Trond Myklebust 
Cc: David Howells 
Cc: Peter Osterlund 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] export clear_queue_congested and set_queue_congested

2006-10-20T17:26:35+00:00

Export the clear_queue_congested() and set_queue_congested() functions
located in ll_rw_blk.c

The functions are renamed to blk_clear_queue_congested() and
blk_set_queue_congested().

(needed in the pktcdvd driver's bio write congestion control)

Signed-off-by: Thomas Maier 
Cc: Peter Osterlund 
Cc: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] block layer: elv_iosched_show should get elv_list_lock

2006-10-12T13:08:51+00:00

elv_iosched_show function iterates other elv_list, hence
elv_list_lock should be got.

Signed-off-by: Vasily Tarasov 
Signed-off-by: Vasily Tarasov

[PATCH] block layer: elevator_find function cleanup

2006-10-12T13:08:51+00:00

We can easily produce search through the elevator list
without introducing additional elevator_type variable.

Signed-off-by: Vasily Tarasov 
Signed-off-by: Jens Axboe

[PATCH] helper function for retrieving scsi_cmd given host based block layer tag

2006-10-04T17:32:09+00:00

This was necessitated by the need for a function to get back
to a scsi_cmnd, when an hba the posts its (corresponding) completion
interrupt with a block layer tag as its reference.

Signed-off-by: Mike Christie 
Signed-off-by: David Somayajulu 
Signed-off-by: Jens Axboe

[PATCH] dm: export blkdev_driver_ioctl

2006-10-03T15:04:13+00:00

Export blkdev_driver_ioctl for device-mapper.

If we get as far as the device-mapper ioctl handler, we know the ioctl is not
a standard block layer BLK* one, so we don't need to check for them a second
time and can call blkdev_driver_ioctl() directly.

Signed-off-by: Alasdair G Kergon 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] completions: lockdep annotate on stack completions

2006-10-01T07:39:24+00:00

All on stack DECLARE_COMPLETIONs should be replaced by:
DECLARE_COMPLETION_ONSTACK

Signed-off-by: Peter Zijlstra 
Acked-by: Ingo Molnar 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Only enable CONFIG_BLOCK option for embedded

2006-09-30T19:14:05+00:00

It's too easy for people to shoot themselves in the foot, and it
only makes sense for embedded folks anyway.

Signed-off-by: Jens Axboe