ceph: factor out libceph from Ceph file system

[pandora-kernel.git] / fs / ceph / pagelist.c

diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
deleted file mode 100644 (file)
index 326e1c0..0000000
--- a/fs/ceph/pagelist.c
+++ /dev/null
@@ -1,63 +0,0 @@
-
-#include <linux/gfp.h>
-#include <linux/pagemap.h>
-#include <linux/highmem.h>
-
-#include "pagelist.h"
-
-static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl)
-{
-       struct page *page = list_entry(pl->head.prev, struct page,
-                                      lru);
-       kunmap(page);
-}
-
-int ceph_pagelist_release(struct ceph_pagelist *pl)
-{
-       if (pl->mapped_tail)
-               ceph_pagelist_unmap_tail(pl);
-
-       while (!list_empty(&pl->head)) {
-               struct page *page = list_first_entry(&pl->head, struct page,
-                                                    lru);
-               list_del(&page->lru);
-               __free_page(page);
-       }
-       return 0;
-}
-
-static int ceph_pagelist_addpage(struct ceph_pagelist *pl)
-{
-       struct page *page = __page_cache_alloc(GFP_NOFS);
-       if (!page)
-               return -ENOMEM;
-       pl->room += PAGE_SIZE;
-       list_add_tail(&page->lru, &pl->head);
-       if (pl->mapped_tail)
-               ceph_pagelist_unmap_tail(pl);
-       pl->mapped_tail = kmap(page);
-       return 0;
-}
-
-int ceph_pagelist_append(struct ceph_pagelist *pl, const void *buf, size_t len)
-{
-       while (pl->room < len) {
-               size_t bit = pl->room;
-               int ret;
-
-               memcpy(pl->mapped_tail + (pl->length & ~PAGE_CACHE_MASK),
-                      buf, bit);
-               pl->length += bit;
-               pl->room -= bit;
-               buf += bit;
-               len -= bit;
-               ret = ceph_pagelist_addpage(pl);
-               if (ret)
-                       return ret;
-       }
-
-       memcpy(pl->mapped_tail + (pl->length & ~PAGE_CACHE_MASK), buf, len);
-       pl->length += len;
-       pl->room -= len;
-       return 0;
-}