ocfs2: Allow uid/gid/perm changes of symlinks

This patch adds the ability to change attributes of a symlink.
Fixes oss bugzilla#963
http://oss.oracle.com/bugzilla/show_bug.cgi?id=963

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 9154c82d3258..57e0d30cde98 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1048,6 +1048,10 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
         mlog_entry("(0x%p, '%.*s')\n", dentry,
                    dentry->d_name.len, dentry->d_name.name);
 
+        /* ensuring we don't even attempt to truncate a symlink */
+        if (S_ISLNK(inode->i_mode))
+                attr->ia_valid &= ~ATTR_SIZE;
+
         if (attr->ia_valid & ATTR_MODE)
                 mlog(0, "mode change: %d\n", attr->ia_mode);
         if (attr->ia_valid & ATTR_UID)
diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c
index 7134007ba22f..ba9dbb51d25b 100644
--- a/fs/ocfs2/symlink.c
+++ b/fs/ocfs2/symlink.c
@@ -167,9 +167,11 @@ const struct inode_operations ocfs2_symlink_inode_operations = {
         .readlink       = page_readlink,
         .follow_link    = ocfs2_follow_link,
         .getattr        = ocfs2_getattr,
+        .setattr        = ocfs2_setattr,
 };
 const struct inode_operations ocfs2_fast_symlink_inode_operations = {
         .readlink       = ocfs2_readlink,
         .follow_link    = ocfs2_follow_link,
         .getattr        = ocfs2_getattr,
+        .setattr        = ocfs2_setattr,
 };