vfs: split out vfs_getattr_nosec
The filehandle lookup code wants this version of getattr.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/stat.c b/fs/stat.c
index d0ea7ef..ae0c3ce 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -37,14 +37,21 @@
EXPORT_SYMBOL(generic_fillattr);
-int vfs_getattr(struct path *path, struct kstat *stat)
+/**
+ * vfs_getattr_nosec - getattr without security checks
+ * @path: file to get attributes from
+ * @stat: structure to return attributes in
+ *
+ * Get attributes without calling security_inode_getattr.
+ *
+ * Currently the only caller other than vfs_getattr is internal to the
+ * filehandle lookup code, which uses only the inode number and returns
+ * no attributes to any user. Any other code probably wants
+ * vfs_getattr.
+ */
+int vfs_getattr_nosec(struct path *path, struct kstat *stat)
{
struct inode *inode = path->dentry->d_inode;
- int retval;
-
- retval = security_inode_getattr(path->mnt, path->dentry);
- if (retval)
- return retval;
if (inode->i_op->getattr)
return inode->i_op->getattr(path->mnt, path->dentry, stat);
@@ -53,6 +60,18 @@
return 0;
}
+EXPORT_SYMBOL(vfs_getattr_nosec);
+
+int vfs_getattr(struct path *path, struct kstat *stat)
+{
+ int retval;
+
+ retval = security_inode_getattr(path->mnt, path->dentry);
+ if (retval)
+ return retval;
+ return vfs_getattr_nosec(path, stat);
+}
+
EXPORT_SYMBOL(vfs_getattr);
int vfs_fstat(unsigned int fd, struct kstat *stat)