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ext4: verify the depth of extent tree in ext4_find_extent()
[linux-2.6-microblaze.git]
/
fs
/
ext4
/
ext4_extents.h
diff --git
a/fs/ext4/ext4_extents.h
b/fs/ext4/ext4_extents.h
index
98fb0c1
..
adf6668
100644
(file)
--- a/
fs/ext4/ext4_extents.h
+++ b/
fs/ext4/ext4_extents.h
@@
-91,6
+91,7
@@
struct ext4_extent_header {
};
#define EXT4_EXT_MAGIC cpu_to_le16(0xf30a)
+#define EXT4_MAX_EXTENT_DEPTH 5
#define EXT4_EXTENT_TAIL_OFFSET(hdr) \
(sizeof(struct ext4_extent_header) + \