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ext2: Fix error handling on inode bitmap corruption 

When insert_inode_locked() fails in ext2_new_inode() it most likely means inode
bitmap got corrupted and we allocated again inode which is already in use. Also
doing unlock_new_inode() during error recovery is wrong since the inode does
not have I_NEW set. Fix the problem by informing about filesystem error and
jumping to fail: (instead of fail_drop:) which doesn't call unlock_new_inode().

Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara 2011-12-09 00:08:58 +01:00
parent 1415dd8705
commit ef6919c283
1 changed files with 5 additions and 2 deletions
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7
fs/ext2/ialloc.c
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@ -573,8 +573,11 @@ got:
inode->i_generation = sbi->s_next_generation++; inode->i_generation = sbi->s_next_generation++;
spin_unlock(&sbi->s_next_gen_lock); spin_unlock(&sbi->s_next_gen_lock);
if (insert_inode_locked(inode) < 0) { if (insert_inode_locked(inode) < 0) {
err = -EINVAL; ext2_error(sb, "ext2_new_inode",
goto fail_drop; "inode number already in use - inode=%lu",
(unsigned long) ino);
err = -EIO;
goto fail;
} }
dquot_initialize(inode); dquot_initialize(inode);