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authorTejun Heo2015-05-22 17:13:32 -0400
committerJens Axboe2015-06-02 08:33:34 -0600
commit66114cad64bf76a155fec1f0fff0de771cf909d5 (patch)
tree58d7b8646add87cb40973961757a1c3598f3ee4c /fs/ext4
parent4610007142823307d930ac890d822633a05ce08c (diff)
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 'fs/ext4')
-rw-r--r--fs/ext4/extents.c1
-rw-r--r--fs/ext4/mballoc.c1
-rw-r--r--fs/ext4/super.c1
3 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index d74e08029643..e8b5866ffa07 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -39,6 +39,7 @@
#include <linux/slab.h>
#include <asm/uaccess.h>
#include <linux/fiemap.h>
+#include <linux/backing-dev.h>
#include "ext4_jbd2.h"
#include "ext4_extents.h"
#include "xattr.h"
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 8d1e60214ef0..440987c8ba9e 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -26,6 +26,7 @@
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/backing-dev.h>
#include <trace/events/ext4.h>
#ifdef CONFIG_EXT4_DEBUG
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index f06d0589ddba..56b8bb75c3fc 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include <linux/parser.h>
#include <linux/buffer_head.h>
#include <linux/exportfs.h>