From 816477edfba6e7ab9411acec5f07cfa00e0882f7 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Fri, 3 Feb 2023 20:06:35 -0800 Subject: [PATCH] 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 Cc: Al Viro Cc: "Fabio M. De Francesco" Cc: Christoph Hellwig Cc: Andrew Morton Acked-by: John Hubbard Signed-off-by: Ira Weiny Acked-by: Andrew Morton Reviewed-by: Christoph Hellwig Reviewed-by: Sumit Garg Signed-off-by: Jens Wiklander --- include/linux/mm.h | 2 -- mm/swap.c | 30 ------------------------------ 2 files changed, 32 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 8f857163ac89..2041e6d4fa27 100644 --- 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 70e2063ef43a..4c03ecab698e 100644 --- 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)