From 10a7a1b8babbdd5684684da31482eab1931316f0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
Date: Tue, 6 Sep 2016 04:36:45 +0200
Subject: ext4: Avoid corruption of directories with hash tree indexes
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While directories can be read using the old linear scan method, adding a
new file would require updating the index tree (alternatively, the whole
tree could be removed).

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
---
 include/ext4fs.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/ext4fs.h b/include/ext4fs.h
index e3f6216fa91..6e31c738123 100644
--- a/include/ext4fs.h
+++ b/include/ext4fs.h
@@ -28,6 +28,7 @@
 #define __EXT4__
 #include <ext_common.h>
 
+#define EXT4_INDEX_FL		0x00001000 /* Inode uses hash tree index */
 #define EXT4_EXTENTS_FL		0x00080000 /* Inode uses extents */
 #define EXT4_EXT_MAGIC			0xf30a
 #define EXT4_FEATURE_RO_COMPAT_GDT_CSUM	0x0010
-- 
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