linux-toradex.git/drivers/md/dm-era-target.c, branch v6.11

dm: Constify struct dm_block_validator

2024-07-19T10:08:15+00:00

'struct dm_block_validator' are not modified in these drivers.

Constifying this structure moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig, as an example:

Before:
======
   text	   data	    bss	    dec	    hex	filename
  32047	    920	     16	  32983	   80d7	drivers/md/dm-cache-metadata.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  32075	    896	     16	  32987	   80db	drivers/md/dm-cache-metadata.o

Signed-off-by: Christophe JAILLET 
Signed-off-by: Mikulas Patocka

dm: stop using blk_limits_io_{min,opt}

2024-07-10T11:10:06+00:00

Remove use of the blk_limits_io_{min,opt} and assign the values directly
to the queue_limits structure.  For the io_opt this is a completely
mechanical change, for io_min it removes flooring the limit to the
physical and logical block size in the particular caller.  But as
blk_validate_limits will do the same later when actually applying the
limits, there still is no change in overall behavior.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Mikulas Patocka

dm: use bio_list_merge_init

2024-04-01T17:53:37+00:00

Use bio_list_merge_init instead of open coding bio_list_merge and
bio_list_init.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Mike Snitzer 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Damien Le Moal 
Link: https://lore.kernel.org/r/20240328084147.2954434-4-hch@lst.de
Signed-off-by: Jens Axboe

block: replace fmode_t with a block-specific type for block open flags

2023-06-12T14:04:05+00:00

The only overlap between the block open flags mapped into the fmode_t and
other uses of fmode_t are FMODE_READ and FMODE_WRITE.  Define a new
blk_mode_t instead for use in blkdev_get_by_{dev,path}, ->open and
->ioctl and stop abusing fmode_t.

Signed-off-by: Christoph Hellwig 
Acked-by: Jack Wang 		[rnbd]
Reviewed-by: Hannes Reinecke 
Reviewed-by: Christian Brauner 
Link: https://lore.kernel.org/r/20230608110258.189493-28-hch@lst.de
Signed-off-by: Jens Axboe

dm: add helper macro for simple DM target module init and exit

2023-04-11T16:09:08+00:00

Eliminate duplicate boilerplate code for simple modules that contain
a single DM target driver without any additional setup code.

Add a new module_dm() macro, which replaces the module_init() and
module_exit() with template functions that call dm_register_target()
and dm_unregister_target() respectively.

Signed-off-by: Yangtao Li 
Signed-off-by: Mike Snitzer

dm: push error reporting down to dm_register_target()

2023-04-11T16:01:01+00:00

Simplifies each DM target's init method by making dm_register_target()
responsible for its error reporting (on behalf of targets).

Signed-off-by: Yangtao Li 
Signed-off-by: Mike Snitzer

dm: prefer '"%s...", func'

2023-02-14T19:23:07+00:00

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Mike Snitzer

dm: add missing empty lines

2023-02-14T19:23:06+00:00

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Mike Snitzer

dm: add argument identifier names

2023-02-14T19:23:06+00:00

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Mike Snitzer

dm: correct block comments format.

2023-02-14T19:23:06+00:00

Signed-off-by: Heinz Mauelshagen 
Signed-off-by: Mike Snitzer

linux-toradex.git/drivers/md/dm-era-target.c, branch v6.11

dm: Constify struct dm_block_validator

dm: stop using blk_limits_io_{min,opt}

dm: use bio_list_merge_init

block: replace fmode_t with a block-specific type for block open flags

dm: add helper macro for simple DM target module init and exit

dm: push error reporting down to dm_register_target()

dm: prefer '"%s...", __func__'

dm: add missing empty lines

dm: add argument identifier names

dm: correct block comments format.

dm: prefer '"%s...", func'