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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-02-22 12:17:31 +0100 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-02-22 12:17:31 +0100 |
| commit | 4cdeed861b5f797b3fa661eb331a6bd6ad669c6a (patch) | |
| tree | 6ef2159a06974e28bdff4426525ecdd052d7b57f /fs/ext4/namei.c | |
| parent | ext4: Fix kernel BUG at fs/ext4/mballoc.c:910! (diff) | |
| download | linux-4cdeed861b5f797b3fa661eb331a6bd6ad669c6a.tar.xz linux-4cdeed861b5f797b3fa661eb331a6bd6ad669c6a.zip | |
ext4: Don't leave behind a half-created inode if ext4_mkdir() fails
If ext4_mkdir() fails to allocate the initial block for the directory,
don't leave behind a half-created directory inode with the link count
left at one. This was caused by an inappropriate call to ext4_dec_count().
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/namei.c')
| -rw-r--r-- | fs/ext4/namei.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index a9347fb43bcc..fffd0807a01b 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -1804,12 +1804,8 @@ retry: inode->i_fop = &ext4_dir_operations; inode->i_size = EXT4_I(inode)->i_disksize = inode->i_sb->s_blocksize; dir_block = ext4_bread (handle, inode, 0, 1, &err); - if (!dir_block) { - ext4_dec_count(handle, inode); /* is this nlink == 0? */ - ext4_mark_inode_dirty(handle, inode); - iput (inode); - goto out_stop; - } + if (!dir_block) + goto out_clear_inode; BUFFER_TRACE(dir_block, "get_write_access"); ext4_journal_get_write_access(handle, dir_block); de = (struct ext4_dir_entry_2 *) dir_block->b_data; @@ -1832,7 +1828,8 @@ retry: ext4_mark_inode_dirty(handle, inode); err = ext4_add_entry (handle, dentry, inode); if (err) { - inode->i_nlink = 0; +out_clear_inode: + clear_nlink(inode); ext4_mark_inode_dirty(handle, inode); iput (inode); goto out_stop; |