Hi all,
On Thu, 11 Feb 2021 21:24:37 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> Today's linux-next merge of the akpm-current tree got a conflict in:
>
> include/linux/pagemap.h
>
> between commits:
>
> 13aecd8259dc ("mm: Implement readahead_control pageset expansion")
> 9a28f7e68602 ("netfs: Rename unlock_page_fscache() and wait_on_page_fscache()")
>
> from the fscache tree and commits:
>
> cd669a9cbd89 ("mm/filemap: add mapping_seek_hole_data")
> 34c37da5f411 ("mm/filemap: pass a sleep state to put_and_wait_on_page_locked")
>
> from the akpm-current tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> diff --cc include/linux/pagemap.h
> index a88ccc9ab0b1,20225b067583..000000000000
> --- a/include/linux/pagemap.h
> +++ b/include/linux/pagemap.h
> @@@ -682,22 -681,7 +682,21 @@@ static inline int wait_on_page_locked_k
> return wait_on_page_bit_killable(compound_head(page), PG_locked);
> }
>
> +/**
> + * wait_on_page_private_2 - Wait for PG_private_2 to be cleared on a page
> + * @page: The page
> + *
> + * Wait for the PG_private_2 page bit to be removed from a page. This is, for
> + * example, used to handle a netfs page being written to a local disk cache,
> + * thereby allowing writes to the cache for the same page to be serialised.
> + */
> +static inline void wait_on_page_private_2(struct page *page)
> +{
> + if (PagePrivate2(page))
> + wait_on_page_bit(compound_head(page), PG_private_2);
> +}
> +
> - extern void put_and_wait_on_page_locked(struct page *page);
> -
> + int put_and_wait_on_page_locked(struct page *page, int state);
> void wait_on_page_writeback(struct page *page);
> extern void end_page_writeback(struct page *page);
> void wait_for_stable_page(struct page *page);
> @@@ -772,11 -756,11 +771,13 @@@ int add_to_page_cache_lru(struct page *
> pgoff_t index, gfp_t gfp_mask);
> extern void delete_from_page_cache(struct page *page);
> extern void __delete_from_page_cache(struct page *page, void *shadow);
> - int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask);
> + void replace_page_cache_page(struct page *old, struct page *new);
> void delete_from_page_cache_batch(struct address_space *mapping,
> struct pagevec *pvec);
> +void readahead_expand(struct readahead_control *ractl,
> + loff_t new_start, size_t new_len);
> + loff_t mapping_seek_hole_data(struct address_space *, loff_t start, loff_t end,
> + int whence);
>
> /*
> * Like add_to_page_cache_locked, but used to add newly allocated pages:
This is now a conflict between the fscache tree and Linus' tree.
--
Cheers,
Stephen Rothwell
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