redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ceph: fix pagelist kunmap tail 

A wrong parameter was passed to the kunmap.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
hifive-unleashed-5.1
Yehuda Sadeh 2010-09-03 12:57:11 -07:00 committed by Sage Weil
parent ca04d9c3ec
commit 3d4401d9d0
1 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fs/ceph/pagelist.c
View File

@ -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;
}