diff options
| author | Tejun Heo <tj@kernel.org> | 2015-05-22 17:13:32 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-06-02 08:33:34 -0600 |
| commit | 66114cad64bf76a155fec1f0fff0de771cf909d5 (patch) | |
| tree | 58d7b8646add87cb40973961757a1c3598f3ee4c /drivers/md | |
| parent | 4610007142823307d930ac890d822633a05ce08c (diff) | |
| download | linux-66114cad64bf76a155fec1f0fff0de771cf909d5.tar.bz2 | |
writeback: separate out include/linux/backing-dev-defs.h
With the planned cgroup writeback support, backing-dev related
declarations will be more widely used across block and cgroup;
unfortunately, including backing-dev.h from include/linux/blkdev.h
makes cyclic include dependency quite likely.
This patch separates out backing-dev-defs.h which only has the
essential definitions and updates blkdev.h to include it. c files
which need access to more backing-dev details now include
backing-dev.h directly. This takes backing-dev.h off the common
include dependency chain making it a lot easier to use it across block
and cgroup.
v2: fs/fat build failure fixed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/bcache/request.c | 1 | ||||
| -rw-r--r-- | drivers/md/dm.h | 1 | ||||
| -rw-r--r-- | drivers/md/md.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 1616f668a4cb..4afb2d26b148 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -15,6 +15,7 @@ #include <linux/module.h> #include <linux/hash.h> #include <linux/random.h> +#include <linux/backing-dev.h> #include <trace/events/bcache.h> diff --git a/drivers/md/dm.h b/drivers/md/dm.h index e6e66d087b26..7fff744f0865 100644 --- a/drivers/md/dm.h +++ b/drivers/md/dm.h @@ -14,6 +14,7 @@ #include <linux/device-mapper.h> #include <linux/list.h> #include <linux/blkdev.h> +#include <linux/backing-dev.h> #include <linux/hdreg.h> #include <linux/completion.h> #include <linux/kobject.h> diff --git a/drivers/md/md.h b/drivers/md/md.h index 4046a6c6f223..7da6e9c3cb53 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -16,6 +16,7 @@ #define _MD_MD_H #include <linux/blkdev.h> +#include <linux/backing-dev.h> #include <linux/kobject.h> #include <linux/list.h> #include <linux/mm.h> |