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authorDave Airlie <airlied@redhat.com>2010-08-02 10:05:18 +1000
committerDave Airlie <airlied@redhat.com>2010-08-02 10:05:24 +1000
commitd656ae53f64cb0f01dac8a02c4d31453d64ef97c (patch)
treecf641d4e5828b8f7c430b42657237c5daf9571fd /fs/ocfs2/refcounttree.c
parent167ffc44caaee68ea60dadf6931a4d195a4ed1f0 (diff)
parentb37fa16e78d6f9790462b3181602a26b5af36260 (diff)
Merge tag 'v2.6.35-rc6' into drm-radeon-next
Need this to avoid conflicts with future radeon fixes
Diffstat (limited to 'fs/ocfs2/refcounttree.c')
-rw-r--r--fs/ocfs2/refcounttree.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 4793f36f6518..3ac5aa733e9c 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -2931,6 +2931,12 @@ static int ocfs2_duplicate_clusters_by_page(handle_t *handle,
offset = ((loff_t)cpos) << OCFS2_SB(sb)->s_clustersize_bits;
end = offset + (new_len << OCFS2_SB(sb)->s_clustersize_bits);
+ /*
+ * We only duplicate pages until we reach the page contains i_size - 1.
+ * So trim 'end' to i_size.
+ */
+ if (end > i_size_read(context->inode))
+ end = i_size_read(context->inode);
while (offset < end) {
page_index = offset >> PAGE_CACHE_SHIFT;
@@ -4166,6 +4172,12 @@ static int __ocfs2_reflink(struct dentry *old_dentry,
struct inode *inode = old_dentry->d_inode;
struct buffer_head *new_bh = NULL;
+ if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_SYSTEM_FILE) {
+ ret = -EINVAL;
+ mlog_errno(ret);
+ goto out;
+ }
+
ret = filemap_fdatawrite(inode->i_mapping);
if (ret) {
mlog_errno(ret);