Commit 3d4401d9 authored by Yehuda Sadeh's avatar Yehuda Sadeh Committed by Sage Weil
Browse files

ceph: fix pagelist kunmap tail 



A wrong parameter was passed to the kunmap.

Signed-off-by: default avatarYehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: default avatarSage Weil <sage@newdream.net>
parent ca04d9c3

fs/ceph/pagelist.c

+10 −2
Original line number Diff line number Diff line
@@ -5,10 +5,18 @@ 


#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)

		kunmap(pl->mapped_tail);

		ceph_pagelist_unmap_tail(pl);



	while (!list_empty(&pl->head)) {

		struct page *page = list_first_entry(&pl->head, struct page,

						     lru);
@@ -26,7 +34,7 @@ static int ceph_pagelist_addpage(struct ceph_pagelist *pl) 
	pl->room += PAGE_SIZE;

	list_add_tail(&page->lru, &pl->head);

	if (pl->mapped_tail)

		kunmap(pl->mapped_tail);

		ceph_pagelist_unmap_tail(pl);

	pl->mapped_tail = kmap(page);

	return 0;

}