This file was defines two global functions, but was never built.
squashfs_page_actor_init_special(), which it defines is never called
anywhere and squashfs_page_actor_init is defined in page_actor.h as
static inline function.
Therefore, drop this stale file.
Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
---
fs/squashfs/page_actor.c | 99 ----------------------------------------
1 file changed, 99 deletions(-)
delete mode 100644 fs/squashfs/page_actor.c
diff --git a/fs/squashfs/page_actor.c b/fs/squashfs/page_actor.c
deleted file mode 100644
index 4eb730857c99..000000000000
--- a/fs/squashfs/page_actor.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * Copyright (c) 2013
- * Phillip Lougher <phillip@xxxxxxxxxxxxxxx>
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- */
-
-#include <linux/kernel.h>
-#include <linux/pagemap.h>
-#include "page_actor.h"
-
-/*
- * This file contains implementations of page_actor for decompressing into
- * an intermediate buffer, and for decompressing directly into the
- * page cache.
- *
- * Calling code should avoid sleeping between calls to squashfs_first_page()
- * and squashfs_finish_page().
- */
-
-/* Implementation of page_actor for decompressing into intermediate buffer */
-static void *cache_first_page(struct squashfs_page_actor *actor)
-{
- actor->next_page = 1;
- return actor->buffer[0];
-}
-
-static void *cache_next_page(struct squashfs_page_actor *actor)
-{
- if (actor->next_page == actor->pages)
- return NULL;
-
- return actor->buffer[actor->next_page++];
-}
-
-static void cache_finish_page(struct squashfs_page_actor *actor)
-{
- /* empty */
-}
-
-struct squashfs_page_actor *squashfs_page_actor_init(void **buffer,
- int pages, int length)
-{
- struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
-
- if (actor == NULL)
- return NULL;
-
- actor->length = length ? : pages * PAGE_CACHE_SIZE;
- actor->buffer = buffer;
- actor->pages = pages;
- actor->next_page = 0;
- actor->squashfs_first_page = cache_first_page;
- actor->squashfs_next_page = cache_next_page;
- actor->squashfs_finish_page = cache_finish_page;
- return actor;
-}
-
-/* Implementation of page_actor for decompressing directly into page cache. */
-static void *direct_first_page(struct squashfs_page_actor *actor)
-{
- actor->next_page = 1;
- return actor->pageaddr = kmap_atomic(actor->page[0]);
-}
-
-static void *direct_next_page(struct squashfs_page_actor *actor)
-{
- if (actor->pageaddr)
- kunmap_atomic(actor->pageaddr);
-
- return actor->pageaddr = actor->next_page == actor->pages ? NULL :
- kmap_atomic(actor->page[actor->next_page++]);
-}
-
-static void direct_finish_page(struct squashfs_page_actor *actor)
-{
- if (actor->pageaddr)
- kunmap_atomic(actor->pageaddr);
-}
-
-struct squashfs_page_actor *squashfs_page_actor_init_special(struct page **page,
- int pages, int length)
-{
- struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
-
- if (actor == NULL)
- return NULL;
-
- actor->length = length ? : pages * PAGE_CACHE_SIZE;
- actor->page = page;
- actor->pages = pages;
- actor->next_page = 0;
- actor->pageaddr = NULL;
- actor->squashfs_first_page = direct_first_page;
- actor->squashfs_next_page = direct_next_page;
- actor->squashfs_finish_page = direct_finish_page;
- return actor;
-}
--
2.39.5
