summaryrefslogtreecommitdiff
path: root/net/ceph/pagelist.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ceph/pagelist.c')
-rw-r--r--net/ceph/pagelist.c38
1 files changed, 0 insertions, 38 deletions
diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c
index 74622b278d57..5a9c4be5f222 100644
--- a/net/ceph/pagelist.c
+++ b/net/ceph/pagelist.c
@@ -131,41 +131,3 @@ int ceph_pagelist_free_reserve(struct ceph_pagelist *pl)
return 0;
}
EXPORT_SYMBOL(ceph_pagelist_free_reserve);
-
-/* Create a truncation point. */
-void ceph_pagelist_set_cursor(struct ceph_pagelist *pl,
- struct ceph_pagelist_cursor *c)
-{
- c->pl = pl;
- c->page_lru = pl->head.prev;
- c->room = pl->room;
-}
-EXPORT_SYMBOL(ceph_pagelist_set_cursor);
-
-/* Truncate a pagelist to the given point. Move extra pages to reserve.
- * This won't sleep.
- * Returns: 0 on success,
- * -EINVAL if the pagelist doesn't match the trunc point pagelist
- */
-int ceph_pagelist_truncate(struct ceph_pagelist *pl,
- struct ceph_pagelist_cursor *c)
-{
- struct page *page;
-
- if (pl != c->pl)
- return -EINVAL;
- ceph_pagelist_unmap_tail(pl);
- while (pl->head.prev != c->page_lru) {
- page = list_entry(pl->head.prev, struct page, lru);
- /* move from pagelist to reserve */
- list_move_tail(&page->lru, &pl->free_list);
- ++pl->num_pages_free;
- }
- pl->room = c->room;
- if (!list_empty(&pl->head)) {
- page = list_entry(pl->head.prev, struct page, lru);
- pl->mapped_tail = kmap(page);
- }
- return 0;
-}
-EXPORT_SYMBOL(ceph_pagelist_truncate);