mm: Remove get_kernel_pages()

The only caller to get_kernel_pages() [shm_get_kernel_pages()] has been
updated to not need it.

Remove get_kernel_pages().

Cc: Mel Gorman <mgorman@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Acked-by: Andrew Morton <akpm@linux-foudation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8f857163ac89c4ad28e9b5f79899fdc630a2f529..2041e6d4fa2764d8a1710843ff3bb185eba4a6a9 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2095,8 +2095,6 @@ int __account_locked_vm(struct mm_struct *mm, unsigned long pages, bool inc,
                        struct task_struct *task, bool bypass_rlim);
 
 struct kvec;
-int get_kernel_pages(const struct kvec *iov, int nr_pages, int write,
-                       struct page **pages);
 struct page *get_dump_page(unsigned long addr);
 
 bool folio_mark_dirty(struct folio *folio);

diff --git a/mm/swap.c b/mm/swap.c
index 70e2063ef43addbf12e5bd4f9768171912a9dd11..4c03ecab698ea49c268eb93f292b28f523201c72 100644 (file)
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -158,36 +158,6 @@ void put_pages_list(struct list_head *pages)
 }
 EXPORT_SYMBOL(put_pages_list);
 
-/*
- * get_kernel_pages() - pin kernel pages in memory
- * @kiov:      An array of struct kvec structures
- * @nr_segs:   number of segments to pin
- * @write:     pinning for read/write, currently ignored
- * @pages:     array that receives pointers to the pages pinned.
- *             Should be at least nr_segs long.
- *
- * Returns number of pages pinned. This may be fewer than the number requested.
- * If nr_segs is 0 or negative, returns 0.  If no pages were pinned, returns 0.
- * Each page returned must be released with a put_page() call when it is
- * finished with.
- */
-int get_kernel_pages(const struct kvec *kiov, int nr_segs, int write,
-               struct page **pages)
-{
-       int seg;
-
-       for (seg = 0; seg < nr_segs; seg++) {
-               if (WARN_ON(kiov[seg].iov_len != PAGE_SIZE))
-                       return seg;
-
-               pages[seg] = kmap_to_page(kiov[seg].iov_base);
-               get_page(pages[seg]);
-       }
-
-       return seg;
-}
-EXPORT_SYMBOL_GPL(get_kernel_pages);
-
 typedef void (*move_fn_t)(struct lruvec *lruvec, struct folio *folio);
 
 static void lru_add_fn(struct lruvec *lruvec, struct folio *folio)