points to ->i_data of coallocated inode.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
block/bdev.c | 1 +
include/linux/blk_types.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/block/bdev.c b/block/bdev.c
index dd26d37356aa..1c3462fba6ce 100644
--- a/block/bdev.c
+++ b/block/bdev.c
@@ -413,6 +413,7 @@ struct block_device *bdev_alloc(struct gendisk *disk, u8 partno)
mutex_init(&bdev->bd_holder_lock);
bdev->bd_partno = partno;
bdev->bd_inode = inode;
+ bdev->bd_mapping = &inode->i_data;
bdev->bd_queue = disk->queue;
if (partno)
bdev->bd_has_submit_bio = disk->part0->bd_has_submit_bio;
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index cb1526ec44b5..6438c75cbb35 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -51,6 +51,7 @@ struct block_device {
bool bd_has_submit_bio;
dev_t bd_dev;
struct inode *bd_inode; /* will die */
+ struct address_space *bd_mapping; /* page cache */
atomic_t bd_openers;
spinlock_t bd_size_lock; /* for bd_inode->i_size updates */
--
2.39.2
