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ext4: don't use ext4_error in ext4_check_descriptors

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Because ext4_check_descriptors is called at mount time you can't use ext4_error
as it calls ext4_commit_sb, which since the sb isn't all the way initialized
causes bad things to happen (ie a panic).  This patch changes the ext4_error's
to printk's to keep this problem from happening.  Thanks much,

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Josef Bacik 2008-04-29 22:00:28 -04:00 committed by Theodore Ts'o
parent 8753e88f1b
commit c19204b0ae
1 changed files with 13 additions and 16 deletions
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29
fs/ext4/super.c
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@ -1484,36 +1484,33 @@ static int ext4_check_descriptors(struct super_block *sb)
block_bitmap = ext4_block_bitmap(sb, gdp); block_bitmap = ext4_block_bitmap(sb, gdp);
if (block_bitmap < first_block || block_bitmap > last_block) if (block_bitmap < first_block || block_bitmap > last_block)
{ {
ext4_error (sb, "ext4_check_descriptors", printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
"Block bitmap for group %lu" "Block bitmap for group %lu not in group "
" not in group (block %llu)!", "(block %llu)!", i, block_bitmap);
i, block_bitmap);
return 0; return 0;
} }
inode_bitmap = ext4_inode_bitmap(sb, gdp); inode_bitmap = ext4_inode_bitmap(sb, gdp);
if (inode_bitmap < first_block || inode_bitmap > last_block) if (inode_bitmap < first_block || inode_bitmap > last_block)
{ {
ext4_error (sb, "ext4_check_descriptors", printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
"Inode bitmap for group %lu" "Inode bitmap for group %lu not in group "
" not in group (block %llu)!", "(block %llu)!", i, inode_bitmap);
i, inode_bitmap);
return 0; return 0;
} }
inode_table = ext4_inode_table(sb, gdp); inode_table = ext4_inode_table(sb, gdp);
if (inode_table < first_block || if (inode_table < first_block ||
inode_table + sbi->s_itb_per_group - 1 > last_block) inode_table + sbi->s_itb_per_group - 1 > last_block)
{ {
ext4_error (sb, "ext4_check_descriptors", printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
"Inode table for group %lu" "Inode table for group %lu not in group "
" not in group (block %llu)!", "(block %llu)!", i, inode_table);
i, inode_table);
return 0; return 0;
} }
if (!ext4_group_desc_csum_verify(sbi, i, gdp)) { if (!ext4_group_desc_csum_verify(sbi, i, gdp)) {
ext4_error(sb, __func__, printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
"Checksum for group %lu failed (%u!=%u)\n", "Checksum for group %lu failed (%u!=%u)\n",
i, le16_to_cpu(ext4_group_desc_csum(sbi, i, i, le16_to_cpu(ext4_group_desc_csum(sbi, i,
gdp)), le16_to_cpu(gdp->bg_checksum)); gdp)), le16_to_cpu(gdp->bg_checksum));
return 0; return 0;
} }
if (!flexbg_flag) if (!flexbg_flag)