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mm, swap: remove no longer used swap mapping helper

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This helper existed to fix the circular header dependency issue but it is
no longer used since commit 0d40cfe63a ("fs: remove
folio_file_mapping()"), remove it.

Link: https://lkml.kernel.org/r/20250430181052.55698-7-ryncsn@gmail.com
Signed-off-by: Kairui Song <kasong@tencent.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Chao Yu <chao@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Chris Mason <clm@fb.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Sterba <dsterba@suse.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Joanne Koong <joannelkoong@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Kairui Song
2025-05-01 02:10:52 +08:00
committed by Andrew Morton
parent 7d0f0f0615
commit dd309bfc68
2 changed files with 0 additions and 10 deletions
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1
include/linux/pagemap.h
View File

@@ -533,7 +533,6 @@ static inline void filemap_nr_thps_dec(struct address_space *mapping)
}
struct address_space *folio_mapping(struct folio *);
struct address_space *swapcache_mapping(struct folio *);
/**
* folio_flush_mapping - Find the file mapping this folio belongs to.

9
mm/swapfile.c
View File

@@ -3662,15 +3662,6 @@ struct swap_info_struct *swp_swap_info(swp_entry_t entry)
return swap_type_to_swap_info(swp_type(entry));
}
/*
* out-of-line methods to avoid include hell.
*/
struct address_space *swapcache_mapping(struct folio *folio)
{
return swp_swap_info(folio->swap)->swap_file->f_mapping;
}
EXPORT_SYMBOL_GPL(swapcache_mapping);
/*
* add_swap_count_continuation - called when a swap count is duplicated
* beyond SWAP_MAP_MAX, it allocates a new page and links that to the entry's