int
affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s32 type)
{
struct super_block *sb = dir->i_sb;
struct buffer_head *inode_bh = NULL;
struct buffer_head *bh;
u32 block = 0;
int retval;
pr_debug("%s(dir=%lu, inode=%lu, \"%pd\", type=%d)\n", __func__,
dir->i_ino, inode->i_ino, dentry, type);
retval = -EIO;
bh = affs_bread(sb, inode->i_ino);
if (!bh)
goto done;
affs_lock_link(inode);
switch (type) {
case ST_LINKFILE:
case ST_LINKDIR:
retval = -ENOSPC;
block = affs_alloc_block(dir, dir->i_ino);
if (!block)
goto err;
retval = -EIO;
inode_bh = bh;
bh = affs_getzeroblk(sb, block);
if (!bh)
goto err;
break;
default:
break;
}
AFFS_HEAD(bh)->ptype = cpu_to_be32(T_SHORT);
AFFS_HEAD(bh)->key = cpu_to_be32(bh->b_blocknr);
affs_copy_name(AFFS_TAIL(sb, bh)->name, dentry);
AFFS_TAIL(sb, bh)->stype = cpu_to_be32(type);
AFFS_TAIL(sb, bh)->parent = cpu_to_be32(dir->i_ino);
if (inode_bh) {
__be32 chain;
chain = AFFS_TAIL(sb, inode_bh)->link_chain;
AFFS_TAIL(sb, bh)->original = cpu_to_be32(inode->i_ino);
AFFS_TAIL(sb, bh)->link_chain = chain;
AFFS_TAIL(sb, inode_bh)->link_chain = cpu_to_be32(block);
affs_adjust_checksum(inode_bh, block - be32_to_cpu(chain));
mark_buffer_dirty_inode(inode_bh, inode);
set_nlink(inode, 2);
ihold(inode);
}
affs_fix_checksum(sb, bh);
mark_buffer_dirty_inode(bh, inode);
dentry->d_fsdata = (void *)(long)bh->b_blocknr;
affs_lock_dir(dir);
retval = affs_insert_hash(dir, bh);
mark_buffer_dirty_inode(bh, inode);
affs_unlock_dir(dir);
affs_unlock_link(inode);
d_instantiate(dentry, inode);
done:
affs_brelse(inode_bh);
affs_brelse(bh);
return retval;
err:
if (block)
affs_free_block(sb, block);
affs_unlock_link(inode);
goto done;
}
int
affs_add_entry(struct inode *dir, struct inode *link, struct inode *inode,
struct dentry *dentry, int type)
{
struct buffer_head *dir_bh;
struct buffer_head *inode_bh;
struct buffer_head *link_bh;
int retval;
const unsigned char *name = dentry->d_name.name;
int len = dentry->d_name.len;
pr_debug("AFFS: add_entry(dir=%lu,inode=%lu,\"%*s\",type=%d)\n",dir->i_ino,inode->i_ino,
len,name,type);
if ((retval = affs_check_name(name,len)))
return retval;
if (len > 30)
len = 30;
dir_bh = affs_bread(dir->i_dev,dir->i_ino,AFFS_I2BSIZE(dir));
inode_bh = affs_bread(inode->i_dev,inode->i_ino,AFFS_I2BSIZE(inode));
link_bh = NULL;
retval = -EIO;
if (!dir_bh || !inode_bh)
goto addentry_done;
if (link) {
link_bh = affs_bread(link->i_dev,link->i_ino,AFFS_I2BSIZE(link));
if (!link_bh)
goto addentry_done;
}
((struct dir_front *)inode_bh->b_data)->primary_type = cpu_to_be32(T_SHORT);
((struct dir_front *)inode_bh->b_data)->own_key = cpu_to_be32(inode->i_ino);
DIR_END(inode_bh->b_data,inode)->dir_name[0] = len;
strncpy(DIR_END(inode_bh->b_data,inode)->dir_name + 1,name,len);
DIR_END(inode_bh->b_data,inode)->secondary_type = cpu_to_be32(type);
DIR_END(inode_bh->b_data,inode)->parent = cpu_to_be32(dir->i_ino);
lock_super(inode->i_sb);
retval = affs_insert_hash(dir->i_ino,inode_bh,dir);
if (link_bh) {
LINK_END(inode_bh->b_data,inode)->original = cpu_to_be32(link->i_ino);
LINK_END(inode_bh->b_data,inode)->link_chain =
FILE_END(link_bh->b_data,link)->link_chain;
FILE_END(link_bh->b_data,link)->link_chain = cpu_to_be32(inode->i_ino);
affs_fix_checksum(AFFS_I2BSIZE(link),link_bh->b_data,5);
link->i_version = ++global_event;
mark_inode_dirty(link);
mark_buffer_dirty(link_bh,1);
}
affs_fix_checksum(AFFS_I2BSIZE(inode),inode_bh->b_data,5);
affs_fix_checksum(AFFS_I2BSIZE(dir),dir_bh->b_data,5);
dir->i_version = ++global_event;
dir->i_mtime = dir->i_atime = dir->i_ctime = CURRENT_TIME;
unlock_super(inode->i_sb);
mark_inode_dirty(dir);
mark_inode_dirty(inode);
mark_buffer_dirty(dir_bh,1);
mark_buffer_dirty(inode_bh,1);
addentry_done:
affs_brelse(dir_bh);
affs_brelse(inode_bh);
affs_brelse(link_bh);
return retval;
}
