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authorTony Lindgren <tony@atomide.com>2010-08-02 14:23:38 +0300
committerTony Lindgren <tony@atomide.com>2010-08-02 14:23:38 +0300
commit055a1b8c9927bc587f293020a54c6cd8e24dfac0 (patch)
treedb7c8d00931180c4896c9e00d2cb506939592cda /fs/ocfs2/refcounttree.c
parent8a6f7e14fc3b3ea911838c3f4ce137cb8a3d134a (diff)
parentf535daed925c2d3c1db06b06a63c4955f2c51988 (diff)
Merge branch 'devel-misc' into omap-for-linus
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 4793f36f651..3ac5aa733e9 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);