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authorTejun Heo <tj@kernel.org>2015-05-22 17:13:33 -0400
committerJens Axboe <axboe@fb.com>2015-06-02 08:33:34 -0600
commita212b105b07d75b48b1a166378282e8a77fbf53d (patch)
treea4c44f26ec1986ee4aefdd9c99a7cb99a8d527ca /fs/fs-writeback.c
parent66114cad64bf76a155fec1f0fff0de771cf909d5 (diff)
downloadlinux-a212b105b07d75b48b1a166378282e8a77fbf53d.tar.bz2
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.c16
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);