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authorChristoph Hellwig <hch@lst.de>2015-01-14 10:42:36 +0100
committerJens Axboe <axboe@fb.com>2015-01-20 14:03:04 -0700
commitde1414a654e66b81b5348dbc5259ecf2fb61655e (patch)
tree2b3d60d6c0dc87ba33caff3e326d5648831d6176 /fs/ext4
parent26ff13047e3dc6c0230a629867e8dbd4a15a7626 (diff)
downloadop-kernel-dev-de1414a654e66b81b5348dbc5259ecf2fb61655e.zip
op-kernel-dev-de1414a654e66b81b5348dbc5259ecf2fb61655e.tar.gz
fs: export inode_to_bdi and use it in favor of mapping->backing_dev_info
Now that we got rid of the bdi abuse on character devices we can always use sb->s_bdi to get at the backing_dev_info for a file, except for the block device special case. Export inode_to_bdi and replace uses of mapping->backing_dev_info with it to prepare for the removal of mapping->backing_dev_info. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Tejun Heo <tj@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 74c5f53..ad88e60 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -334,7 +334,7 @@ static void save_error_info(struct super_block *sb, const char *func,
static int block_device_ejected(struct super_block *sb)
{
struct inode *bd_inode = sb->s_bdev->bd_inode;
- struct backing_dev_info *bdi = bd_inode->i_mapping->backing_dev_info;
+ struct backing_dev_info *bdi = inode_to_bdi(bd_inode);
return bdi->dev == NULL;
}
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