diff options
Diffstat (limited to 'fs/fs-writeback.c')
| -rw-r--r-- | fs/fs-writeback.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 2d609a5fbfea..c399152de397 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -66,15 +66,21 @@ int writeback_in_progress(struct backing_dev_info *bdi) } EXPORT_SYMBOL(writeback_in_progress); -static inline struct backing_dev_info *inode_to_bdi(struct inode *inode) +struct backing_dev_info *inode_to_bdi(struct inode *inode) { - struct super_block *sb = inode->i_sb; + struct super_block *sb; - if (sb_is_blkdev_sb(sb)) - return inode->i_mapping->backing_dev_info; + if (!inode) + return &noop_backing_dev_info; + sb = inode->i_sb; +#ifdef CONFIG_BLOCK + if (sb_is_blkdev_sb(sb)) + return blk_get_backing_dev_info(I_BDEV(inode)); +#endif return sb->s_bdi; } +EXPORT_SYMBOL_GPL(inode_to_bdi); static inline struct inode *wb_inode(struct list_head *head) { |