projects
/
platform
/
kernel
/
linux-exynos.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
f298446
)
Btrfs: Add extra checks to avoid removing extent_state from pages we can't free
author
Chris Mason
<chris.mason@oracle.com>
Fri, 11 Apr 2008 14:51:07 +0000
(10:51 -0400)
committer
Chris Mason
<chris.mason@oracle.com>
Thu, 25 Sep 2008 15:04:01 +0000
(11:04 -0400)
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/disk-io.c
patch
|
blob
|
history
diff --git
a/fs/btrfs/disk-io.c
b/fs/btrfs/disk-io.c
index
cf1de75
..
e22960e
100644
(file)
--- a/
fs/btrfs/disk-io.c
+++ b/
fs/btrfs/disk-io.c
@@
-436,6
+436,12
@@
static int btree_releasepage(struct page *page, gfp_t gfp_flags)
struct extent_map_tree *map;
int ret;
+ if (page_count(page) > 3) {
+ /* once for page->private, once for the caller, once
+ * once for the page cache
+ */
+ return 0;
+ }
tree = &BTRFS_I(page->mapping->host)->io_tree;
map = &BTRFS_I(page->mapping->host)->extent_tree;
ret = try_release_extent_mapping(map, tree, page, gfp_flags);