Re: [PATCH 17/17] writeback: update the kerneldoc comment for tag_pages_for_writeback

[Jan Kara]

On Mon 18-12-23 16:35:53, Christoph Hellwig wrote:
> Don't refer to write_cache_pages, which now is just a wrapper for the
> writeback iterator.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
>  mm/page-writeback.c | 14 +++++++-------
>  1 file changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/mm/page-writeback.c b/mm/page-writeback.c
> index d3c2c78e0c67ce..bc69044fd063e8 100644
> --- a/mm/page-writeback.c
> +++ b/mm/page-writeback.c
> @@ -2325,18 +2325,18 @@ void __init page_writeback_init(void)
>  }
>  
>  /**
> - * tag_pages_for_writeback - tag pages to be written by write_cache_pages
> + * tag_pages_for_writeback - tag pages to be written by writeback
>   * @mapping: address space structure to write
>   * @start: starting page index
>   * @end: ending page index (inclusive)
>   *
>   * This function scans the page range from @start to @end (inclusive) and tags
> - * all pages that have DIRTY tag set with a special TOWRITE tag. The idea is
> - * that write_cache_pages (or whoever calls this function) will then use
> - * TOWRITE tag to identify pages eligible for writeback.  This mechanism is
> - * used to avoid livelocking of writeback by a process steadily creating new
> - * dirty pages in the file (thus it is important for this function to be quick
> - * so that it can tag pages faster than a dirtying process can create them).
> + * all pages that have DIRTY tag set with a special TOWRITE tag.  The caller
> + * can then use the TOWRITE tag to identify pages eligible for writeback.
> + * This mechanism is used to avoid livelocking of writeback by a process
> + * steadily creating new dirty pages in the file (thus it is important for this
> + * function to be quick so that it can tag pages faster than a dirtying process
> + * can create them).
>   */
>  void tag_pages_for_writeback(struct address_space *mapping,
>  			     pgoff_t start, pgoff_t end)
> -- 
> 2.39.2
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR