diff options
author | Tejun Heo <tj@kernel.org> | 2015-05-23 00:13:33 +0300 |
---|---|---|
committer | Jens Axboe <axboe@fb.com> | 2015-06-02 17:33:34 +0300 |
commit | a212b105b07d75b48b1a166378282e8a77fbf53d (patch) | |
tree | a4c44f26ec1986ee4aefdd9c99a7cb99a8d527ca /fs/fs-writeback.c | |
parent | 66114cad64bf76a155fec1f0fff0de771cf909d5 (diff) |
bdi: make inode_to_bdi() inline
Now that bdi definitions are moved to backing-dev-defs.h,
backing-dev.h can include blkdev.h and inline inode_to_bdi() without
worrying about introducing circular include dependency. The function
gets called from hot paths and fairly trivial.
This patch makes inode_to_bdi() and sb_is_blkdev_sb() that the
function calls inline. blockdev_superblock and noop_backing_dev_info
are EXPORT_GPL'd to allow the inline functions to be used from
modules.
While at it, make sb_is_blkdev_sb() return bool instead of int.
v2: Fixed typo in description as suggested by Jan.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'fs/fs-writeback.c')
-rw-r--r-- | fs/fs-writeback.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index a69d2e10d514..34d1cb854fc1 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -78,22 +78,6 @@ int writeback_in_progress(struct backing_dev_info *bdi) } EXPORT_SYMBOL(writeback_in_progress); -struct backing_dev_info *inode_to_bdi(struct inode *inode) -{ - struct super_block *sb; - - 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) { return list_entry(head, struct inode, i_wb_list); |