On Wed 14-01-15 10:42:34, Christoph Hellwig wrote:
> Directly grab the backing_dev_info from the request_queue instead of
> detouring through the address_space.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> Reviewed-by: Tejun Heo <tj@xxxxxxxxxx>
Looks good. You can add:
Reviewed-by: Jan Kara <jack@xxxxxxx>
Honza
> ---
> fs/fs-writeback.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
> index 2d609a5..e8116a4 100644
> --- a/fs/fs-writeback.c
> +++ b/fs/fs-writeback.c
> @@ -69,10 +69,10 @@ EXPORT_SYMBOL(writeback_in_progress);
> static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
> {
> struct super_block *sb = inode->i_sb;
> -
> +#ifdef CONFIG_BLOCK
> if (sb_is_blkdev_sb(sb))
> - return inode->i_mapping->backing_dev_info;
> -
> + return blk_get_backing_dev_info(I_BDEV(inode));
> +#endif
> return sb->s_bdi;
> }
>
> --
> 1.9.1
>
> --
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--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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