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authorChris Metcalf <cmetcalf@tilera.com>2010-10-14 11:57:29 -0400
committerChris Metcalf <cmetcalf@tilera.com>2010-10-14 11:57:29 -0400
commitce0ecc8abfa9904e27a5f3ac4dd83398b134278d (patch)
tree031363a799c1869889c961fcc49715896f59f703 /fs/ceph/pagelist.c
parentde5bbad6770882209b0ac58b0ba9259a98cfb953 (diff)
parentcb655d0f3d57c23db51b981648e452988c0223f9 (diff)
downloadop-kernel-dev-ce0ecc8abfa9904e27a5f3ac4dd83398b134278d.zip
op-kernel-dev-ce0ecc8abfa9904e27a5f3ac4dd83398b134278d.tar.gz
Merge branch 'master' into for-linus
Diffstat (limited to 'fs/ceph/pagelist.c')
-rw-r--r--fs/ceph/pagelist.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
index b6859f4..46a368b 100644
--- a/fs/ceph/pagelist.c
+++ b/fs/ceph/pagelist.c
@@ -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;
}
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