mm: don't include <linux/blk-cgroup.h> in <linux/backing-dev.h>

There is no need to pull blk-cgroup.h and thus blkdev.h in here, so
break the include chain.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

13 files changed, 15 insertions, 3 deletions

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index bed05b644c2c..cb25acccd746 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -21,6 +21,7 @@
 #include <linux/namei.h>
 #include <linux/pagemap.h>
 #include <linux/poll.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 
 #include <asm/prom.h>
diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index c0545f9da549..6593c7123b97 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -74,6 +74,7 @@
 #include <linux/sched/signal.h>
 #include <trace/events/block.h>
 #include <linux/blk-mq.h>
+#include <linux/blk-cgroup.h>
 #include "blk-rq-qos.h"
 #include "blk-stat.h"
 #include "blk.h"
diff --git a/block/blk-mq.c b/block/blk-mq.c
index bc026372de43..0fefe00cebd4 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <linux/smp.h>
+#include <linux/interrupt.h>
 #include <linux/llist.h>
 #include <linux/list_sort.h>
 #include <linux/cpu.h>
diff --git a/block/bounce.c b/block/bounce.c
index 05fc7148489d..7af1a72835b9 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -14,6 +14,7 @@
 #include <linux/pagemap.h>
 #include <linux/mempool.h>
 #include <linux/blkdev.h>
+#include <linux/blk-cgroup.h>
 #include <linux/backing-dev.h>
 #include <linux/init.h>
 #include <linux/hash.h>
diff --git a/drivers/md/dm-ima.c b/drivers/md/dm-ima.c
index 2c5edfbd7711..957999998d70 100644
--- a/drivers/md/dm-ima.c
+++ b/drivers/md/dm-ima.c
@@ -12,6 +12,7 @@
 #include "dm-ima.h"
 
 #include <linux/ima.h>
+#include <linux/sched/mm.h>
 #include <crypto/hash.h>
 #include <linux/crypto.h>
 #include <crypto/hash_info.h>
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 7869ad12bc6e..ddc4f5436cc9 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -9,6 +9,7 @@
 #include <linux/fs.h>
 #include <linux/pagemap.h>
 #include <linux/highmem.h>
+#include <linux/kthread.h>
 #include <linux/time.h>
 #include <linux/init.h>
 #include <linux/string.h>
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 84627cbd5b5b..66290b214f2b 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -7,6 +7,7 @@
 #include <linux/slab.h>
 #include <linux/rbtree.h>
 #include <linux/mm.h>
+#include <linux/error-injection.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index c1bf9ad4c220..20a083dc9042 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -7,6 +7,7 @@
 
 #include <linux/fs.h>
 #include <linux/f2fs_fs.h>
+#include <linux/moduleparam.h>
 #include <linux/writeback.h>
 #include <linux/backing-dev.h>
 #include <linux/lzo.h>
diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index 2f2e430461b2..8bb0a53a658b 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -11,6 +11,7 @@
 
 #include <linux/parser.h>
 #include <linux/hashtable.h>
+#include <linux/seq_file.h>
 
 /* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
 static struct kmem_cache *orangefs_inode_cache;
diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 65e7e56005b8..e2302342a67f 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -38,6 +38,7 @@
 #include <linux/uaccess.h>
 #include <linux/fs_context.h>
 #include <linux/fs_parser.h>
+#include <linux/seq_file.h>
 #include "internal.h"
 
 struct ramfs_mount_opts {
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index ac7f231b8825..843bf4be675f 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -15,10 +15,11 @@
 #include <linux/blkdev.h>
 #include <linux/device.h>
 #include <linux/writeback.h>
-#include <linux/blk-cgroup.h>
 #include <linux/backing-dev-defs.h>
 #include <linux/slab.h>
 
+struct blkcg;
+
 static inline struct backing_dev_info *bdi_get(struct backing_dev_info *bdi)
 {
 	kref_get(&bdi->refcnt);
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 4a9d4e27d0d9..5245744437dc 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -2,8 +2,9 @@
 
 #include <linux/wait.h>
 #include <linux/rbtree.h>
-#include <linux/backing-dev.h>
 #include <linux/kthread.h>
+#include <linux/backing-dev.h>
+#include <linux/blk-cgroup.h>
 #include <linux/freezer.h>
 #include <linux/fs.h>
 #include <linux/pagemap.h>
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 22d10f713848..30db362749c0 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -18,7 +18,7 @@
 #include <linux/pagemap.h>
 #include <linux/namei.h>
 #include <linux/shmem_fs.h>
-#include <linux/blkdev.h>
+#include <linux/blk-cgroup.h>
 #include <linux/random.h>
 #include <linux/writeback.h>
 #include <linux/proc_fs.h>