Christoph Hellwig wrote:
> These are micro-optimizations for synchronous I/O, which do not matter
> compared to all the other inefficiencies in the legacy buffer_head
> based mpage code.
> 
> Signed-off-by: Christoph Hellwig <h...@lst.de>
> ---
>  fs/mpage.c | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/fs/mpage.c b/fs/mpage.c
> index 0f8ae954a57903..124550cfac4a70 100644
> --- a/fs/mpage.c
> +++ b/fs/mpage.c
> @@ -269,11 +269,6 @@ static struct bio *do_mpage_readpage(struct 
> mpage_readpage_args *args)
>  
>  alloc_new:
>       if (args->bio == NULL) {
> -             if (first_hole == blocks_per_page) {
> -                     if (!bdev_read_page(bdev, blocks[0] << (blkbits - 9),
> -                                                             &folio->page))
> -                             goto out;
> -             }
>               args->bio = bio_alloc(bdev, bio_max_segs(args->nr_pages), opf,
>                                     gfp);
>               if (args->bio == NULL)
> @@ -579,11 +574,6 @@ static int __mpage_writepage(struct page *page, struct 
> writeback_control *wbc,
>  
>  alloc_new:
>       if (bio == NULL) {
> -             if (first_unmapped == blocks_per_page) {
> -                     if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
> -                                                             page, wbc))
> -                             goto out;
> -             }
>               bio = bio_alloc(bdev, BIO_MAX_VECS,
>                               REQ_OP_WRITE | wbc_to_write_flags(wbc),
>                               GFP_NOFS);
> -- 
> 2.39.0
> 

Makes sense,

Reviewed-by: Dan Williams <dan.j.willi...@intel.com>

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