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Message-Id: <1312518471-30714-2-git-send-email-hao.bigrat@gmail.com>
Date: Fri, 5 Aug 2011 12:27:51 +0800
From: Robin Dong <hao.bigrat@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Robin Dong <sanbai@...bao.com>
Subject: [PATCH 2/2 bigalloc] e2fsprogs: use s_log_block_size to decide s_first_data_block in ext2fs_initialize
From: Robin Dong <sanbai@...bao.com>
After mke2fs with 1024 block size:
#misc/mke2fs -m 0 -O ^resize_inode,extent,meta_bg,bigalloc -b 1024 /dev/sda
kernel reports:
[74687.352702] EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 not in group (block 524288)!
[74687.355534] EXT4-fs (loop0): group descriptors corrupted!
when mount /dev/sda.
The reason is mke2fs set s_first_data_block to 0 by mistake just because
s_log_cluster_size is 4 when s_log_block_size==0.
This patch is based on "next" branch of e2fsprogs.
Signed-off-by: Robin Dong <sanbai@...bao.com>
---
lib/ext2fs/initialize.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/lib/ext2fs/initialize.c b/lib/ext2fs/initialize.c
index ccc2dee..c2344a0 100644
--- a/lib/ext2fs/initialize.c
+++ b/lib/ext2fs/initialize.c
@@ -155,7 +155,7 @@ errcode_t ext2fs_initialize(const char *name, int flags,
} else
super->s_log_cluster_size = super->s_log_block_size;
- set_field(s_first_data_block, super->s_log_cluster_size ? 0 : 1);
+ set_field(s_first_data_block, super->s_log_block_size ? 0 : 1);
set_field(s_max_mnt_count, 0);
set_field(s_errors, EXT2_ERRORS_DEFAULT);
set_field(s_feature_compat, 0);
--
1.7.3.2
--
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