linux-toradex.git/block/elevator.c, branch v2.6.24.2

block: let elv_register() return void

2007-12-18T07:29:28+00:00

elv_register() always returns 0, and there isn't anything it does where
it should return an error (the only error condition is so grave that
it's handled with a BUG_ON).

Signed-off-by: Adrian Bunk 
Signed-off-by: Jens Axboe

fix typo "insted" -> "instead"

2007-10-19T23:55:04+00:00

Signed-off-by: Uwe Kleine-König 
Signed-off-by: Adrian Bunk

block: Initial support for data-less (or empty) barrier support

2007-10-16T09:03:56+00:00

This implements functionality to pass down or insert a barrier
in a queue, without having data attached to it. The ->prepare_flush_fn()
infrastructure from data barriers are reused to provide this
functionality.

Signed-off-by: Jens Axboe

block: add end_queued_request() and end_dequeued_request() helpers

2007-10-16T09:03:53+00:00

We can use this helper in the elevator core for BLKPREP_KILL, and it'll
also be useful for the empty barrier patch.

Signed-off-by: Jens Axboe

kobjects: fix up improper use of the kobject name field

2007-10-12T21:51:02+00:00

A number of different drivers incorrect access the kobject name field
directly.  This is not correct as the name might not be in the array.
Use the proper accessor function instead.

[BLOCK] Get rid of request_queue_t typedef

2007-07-24T07:28:11+00:00

Some of the code has been gradually transitioned to using the proper
struct request_queue, but there's lots left. So do a full sweet of
the kernel and get rid of this typedef and replace its uses with
the proper type.

Signed-off-by: Jens Axboe

Slab allocators: Replace explicit zeroing with __GFP_ZERO

2007-07-17T17:23:02+00:00

kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing
variant in the past.  But with __GFP_ZERO it is possible now to do zeroing
while allocating.

Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever
we can.

Signed-off-by: Christoph Lameter 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Use list_for_each_entry() instead of list_for_each() in the block device

2007-07-10T11:43:32+00:00

elevator

Signed-off-by: Matthias Kaehlcke 
Signed-off-by: Andrew Morton 
Signed-off-by: Jens Axboe

[PATCH] elevator: elv_list_lock does not need irq disabling

2007-04-30T07:08:17+00:00

It's never grabbed from irq context, so just make it plain spin_lock().

Signed-off-by: Jens Axboe

make elv_register() output atomic

2007-03-27T06:53:04+00:00

Booting 2.6.21-rc3-g45592145 I noticed the following on one of my
machines in the bootlog:

io scheduler noop registered<6>Time: jiffies clocksource has been installed.

io scheduler deadline registered (default)

Looking at block/elevator.c, it appears that elv_register() uses two
consecutive printks in a non-atomic way, leading to the above glitch. The
attached trivial patch fixes this issue, by using a single printk.

Signed-off-by: Thibaut VARENE 
Signed-off-by: Jens Axboe