From: "Lan Yixun (dlan)" <dennis.y...@gmail.com>

err:
lt703a # ext4ls nand 3:0
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **

bug may introduced by commit:

commit 50ce4c07df1c98aabf4630b35152ed95a87242f7
Author: Egbert Eich <e...@suse.com>
Date:   Wed May 1 01:13:19 2013 +0000

    fs/ext4: Support device block sizes != 512 bytes

Signed-off-by: Lan Yixun (dlan) <dennis.y...@gmail.com>
---
 disk/part.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/disk/part.c b/disk/part.c
index fc8404d..dbc94c4 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -551,6 +551,8 @@ int get_device_and_partition(const char *ifname, const char 
*dev_part_str,
                        goto cleanup;
                }
 
+               (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
                info->start = 0;
                info->size = (*dev_desc)->lba;
                info->blksz = (*dev_desc)->blksz;
@@ -634,6 +636,8 @@ int get_device_and_partition(const char *ifname, const char 
*dev_part_str,
                goto cleanup;
        }
 
+       (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
+
        ret = part;
        goto cleanup;
 
-- 
1.8.2.1

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