static int nilfs_rmdir(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
struct nilfs_transaction_info ti;
int err;
err = nilfs_transaction_begin(dir->i_sb, &ti, 0);
if (err)
return err;
err = -ENOTEMPTY;
if (nilfs_empty_dir(inode)) {
err = nilfs_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
inode_dec_link_count(inode);
inode_dec_link_count(dir);
}
}
if (!err)
err = nilfs_transaction_commit(dir->i_sb);
else
nilfs_transaction_abort(dir->i_sb);
return err;
}
static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
{
struct inode * inode;
int err;
inode_inc_link_count(dir);
inode = minix_new_inode(dir, S_IFDIR | mode, &err);
if (!inode)
goto out_dir;
minix_set_inode(inode, 0);
inode_inc_link_count(inode);
err = minix_make_empty(inode, dir);
if (err)
goto out_fail;
err = minix_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
static int nilfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
struct inode *inode;
struct nilfs_transaction_info ti;
int err;
if (dir->i_nlink >= NILFS_LINK_MAX)
return -EMLINK;
err = nilfs_transaction_begin(dir->i_sb, &ti, 1);
if (err)
return err;
inode_inc_link_count(dir);
inode = nilfs_new_inode(dir, S_IFDIR | mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
inode->i_op = &nilfs_dir_inode_operations;
inode->i_fop = &nilfs_dir_operations;
inode->i_mapping->a_ops = &nilfs_aops;
inode_inc_link_count(inode);
err = nilfs_make_empty(inode, dir);
if (err)
goto out_fail;
err = nilfs_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
if (!err)
err = nilfs_transaction_commit(dir->i_sb);
else
nilfs_transaction_abort(dir->i_sb);
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
static int minix_rmdir(struct inode * dir, struct dentry *dentry)
{
struct inode * inode = dentry->d_inode;
int err = -ENOTEMPTY;
if (minix_empty_dir(inode)) {
err = minix_unlink(dir, dentry);
if (!err) {
inode_dec_link_count(dir);
inode_dec_link_count(inode);
}
}
return err;
}
static int ext2_rmdir (struct inode * dir, struct dentry *dentry)
{
struct inode * inode = dentry->d_inode;
int err = -ENOTEMPTY;
if (ext2_empty_dir(inode)) {
err = ext2_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
inode_dec_link_count(inode);
inode_dec_link_count(dir);
}
}
return err;
}
static int tux3_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
if(DEBUG_MODE_K==1)
{
printf("\t\t\t\t%25s[K] %25s %4d #in\n",__FILE__,__func__,__LINE__);
}
struct inode *inode = old_dentry->d_inode;
struct sb *sb = tux_sb(inode->i_sb);
int err;
if (inode->i_nlink >= TUX_LINK_MAX)
return -EMLINK;
change_begin(sb);
tux3_iattrdirty(inode);
inode->i_ctime = gettime();
inode_inc_link_count(inode);
ihold(inode);
err = tux_add_dirent(dir, dentry, inode);
if (err) {
inode_dec_link_count(inode);
iput(inode);
}
change_end(sb);
return err;
}
static int __tux3_symlink(struct inode *dir, struct dentry *dentry,
struct tux_iattr *iattr, const char *symname)
{
struct sb *sb = tux_sb(dir->i_sb);
struct inode *inode;
unsigned len = strlen(symname) + 1;
int err;
/* FIXME: We want more length? */
if (len > PAGE_CACHE_SIZE)
return -ENAMETOOLONG;
change_begin(sb);
inode = tux_create_inode(dir, iattr, 0);
err = PTR_ERR(inode);
if (!IS_ERR(inode)) {
err = page_symlink(inode, symname, len);
if (!err) {
err = tux_add_dirent(dir, dentry, inode);
if (!err)
goto out;
}
inode_dec_link_count(inode);
iput(inode);
}
out:
change_end(sb);
return err;
}
static int simplefs_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) {
struct inode *inode = NULL;
long ino;
int err = 0;
ino = bitmap_alloc_inode(dir->i_sb);
if (ino < 0)
return -EIO;
inode = simplefs_iget(dir->i_sb, ino);
if (IS_ERR(inode))
return -EIO;
inode->i_state = 0;
inode->i_mode = mode | S_IFREG;
inode->i_nlink = 1;
inode->i_size = inode->i_blocks = inode->i_bytes = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
err = simplefs_insert_dentry(dentry, inode);
if (!err) {
//dentry->d_op = &d_op;
d_instantiate(dentry, inode);
if (inode) {
printk(KERN_INFO "simplefs_create: dentry %d", dentry->d_count.counter);
printk(KERN_INFO "simplefs_create: inode %ld %ld %d %d", inode->i_ino, inode->i_state, inode->i_count.counter, inode->i_nlink);
}
return 0;
}
inode_dec_link_count(inode);
iput(inode);
return err;
}
int uxfs_dirdel(struct inode *dip, char *name)
{
struct uxfs_inode *uip = (struct uxfs_inode *)
dip->i_private;
struct buffer_head *bh;
struct super_block *sb = dip->i_sb;
struct uxfs_dirent *dirent;
__u32 blk = 0;
int i;
while (blk < uip->i_blocks) {
bh = sb_bread(sb, uip->i_addr[blk]);
blk++;
dirent = (struct uxfs_dirent *)bh->b_data;
for (i = 0; i < UXFS_DIRS_PER_BLOCK; i++) {
if (strcmp(dirent->d_name, name) != 0) {
dirent++;
continue;
} else {
dirent->d_ino = 0;
dirent->d_name[0] = '\0';
mark_buffer_dirty(bh); //unnecessary??
inode_dec_link_count(dip);
// mark_inode_dirty(dip); redundant
break;
}
}
brelse(bh);
}
return 0;
}
static int nilfs_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *dentry)
{
struct inode *inode = d_inode(old_dentry);
struct nilfs_transaction_info ti;
int err;
err = nilfs_transaction_begin(dir->i_sb, &ti, 1);
if (err)
return err;
inode->i_ctime = current_time(inode);
inode_inc_link_count(inode);
ihold(inode);
err = nilfs_add_link(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
err = nilfs_transaction_commit(dir->i_sb);
} else {
inode_dec_link_count(inode);
iput(inode);
nilfs_transaction_abort(dir->i_sb);
}
return err;
}
static int sysv_symlink(struct inode * dir, struct dentry * dentry,
const char * symname)
{
int err = -ENAMETOOLONG;
int l = strlen(symname)+1;
struct inode * inode;
if (l > dir->i_sb->s_blocksize)
goto out;
inode = sysv_new_inode(dir, S_IFLNK|0777);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out;
sysv_set_inode(inode, 0);
err = page_symlink(inode, symname, l);
if (err)
goto out_fail;
mark_inode_dirty(inode);
err = add_nondir(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
iput(inode);
goto out;
}
static int minix_symlink(struct inode * dir, struct dentry *dentry,
const char * symname)
{
int err = -ENAMETOOLONG;
int i = strlen(symname)+1;
struct inode * inode;
if (i > dir->i_sb->s_blocksize)
goto out;
inode = minix_new_inode(dir, S_IFLNK | 0777, &err);
if (!inode)
goto out;
minix_set_inode(inode, 0);
err = page_symlink(inode, symname, i);
if (err)
goto out_fail;
err = add_nondir(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
iput(inode);
goto out;
}
/*
==================================================================================
Function :me2fsUnlink
Input :struct inode *dir
< vfs inode of parent >
struct dentry *dentry
< name of file >
Output :void
Return :int
< result >
Description :unlink a file
==================================================================================
*/
static int
me2fsUnlink( struct inode *dir, struct dentry *dentry )
{
struct inode *inode;
struct ext2_dir_entry *dent;
struct page *page;
int err;
if( !( dent = me2fsFindDirEntry( dir, &dentry->d_name, &page ) ) )
{
return( -ENOENT );
}
if( ( err = me2fsDeleteDirEntry( dent, page ) ) )
{
return( err );
}
inode = dentry->d_inode;
inode->i_ctime = dir->i_ctime;
inode_dec_link_count( inode );
return( 0 );
}
static int ufs_rmdir (struct inode * dir, struct dentry *dentry)
{
struct inode * inode = dentry->d_inode;
int err= -ENOTEMPTY;
lock_kernel();
if (ufs_empty_dir (inode)) {
err = ufs_unlink(dir, dentry);
if (!err) {
inode->i_size = 0;
inode_dec_link_count(inode);
inode_dec_link_count(dir);
}
}
unlock_kernel();
return err;
}
static int ufs_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
if (dir->i_nlink >= UFS_LINK_MAX)
goto out;
dquot_initialize(dir);
lock_kernel();
inode_inc_link_count(dir);
inode = ufs_new_inode(dir, S_IFDIR|mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
inode->i_mapping->a_ops = &ufs_aops;
inode_inc_link_count(inode);
err = ufs_make_empty(inode, dir);
if (err)
goto out_fail;
err = ufs_add_link(dentry, inode);
if (err)
goto out_fail;
unlock_kernel();
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput (inode);
out_dir:
inode_dec_link_count(dir);
unlock_kernel();
goto out;
}
static int ext2_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
{
struct inode * inode;
int err;
dquot_initialize(dir);
inode_inc_link_count(dir);
inode = ext2_new_inode(dir, S_IFDIR | mode, &dentry->d_name);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
inode->i_op = &ext2_dir_inode_operations;
inode->i_fop = &ext2_dir_operations;
if (test_opt(inode->i_sb, NOBH))
inode->i_mapping->a_ops = &ext2_nobh_aops;
else
inode->i_mapping->a_ops = &ext2_aops;
inode_inc_link_count(inode);
err = ext2_make_empty(inode, dir);
if (err)
goto out_fail;
err = ext2_add_link(dentry, inode);
if (err)
goto out_fail;
unlock_new_inode(inode);
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
static int ext2_mkdir(struct inode * dir, struct dentry * dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
if (dir->i_nlink >= EXT2_LINK_MAX)
goto out;
inode_inc_link_count(dir);
inode = ext2_new_inode (dir, S_IFDIR | mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
inode->i_op = &ext2_dir_inode_operations;
inode->i_fop = &ext2_dir_operations;
if (test_opt(inode->i_sb, NOBH))
inode->i_mapping->a_ops = &ext2_nobh_aops;
else
inode->i_mapping->a_ops = &ext2_aops;
inode_inc_link_count(inode);
err = ext2_make_empty(inode, dir);
if (err)
goto out_fail;
err = ext2_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
static int ufs_mkdir(struct inode * dir, struct dentry * dentry, umode_t mode)
{
struct inode * inode;
int err;
lock_ufs(dir->i_sb);
inode_inc_link_count(dir);
inode = ufs_new_inode(dir, S_IFDIR|mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
inode->i_op = &ufs_dir_inode_operations;
inode->i_fop = &ufs_dir_operations;
inode->i_mapping->a_ops = &ufs_aops;
inode_inc_link_count(inode);
err = ufs_make_empty(inode, dir);
if (err)
goto out_fail;
err = ufs_add_link(dentry, inode);
if (err)
goto out_fail;
unlock_ufs(dir->i_sb);
unlock_new_inode(inode);
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput (inode);
out_dir:
inode_dec_link_count(dir);
unlock_ufs(dir->i_sb);
goto out;
}
/*
==================================================================================
Function :me2fsSymlink
Input :struct inode *dir
< vfs inode of parent >
struct dentry *dentry
< new linked file >
const char *symname
< symbolic link path >
Output :void
Return :void
Description :make a symbolic link
==================================================================================
*/
static int
me2fsSymlink( struct inode *dir,
struct dentry *dentry,
const char *symname )
{
struct super_block *sb;
int err;
unsigned len;
struct inode *inode;
sb = dir->i_sb;
len = strlen( symname ) + 1;
if( sb->s_blocksize < len )
{
return( -ENAMETOOLONG );
}
inode = me2fsAllocNewInode( dir, S_IFLNK | S_IRWXUGO, &dentry->d_name );
if( IS_ERR( inode ) )
{
return( PTR_ERR( inode ) );
}
/* ------------------------------------------------------------------------ */
/* slow symlink */
/* ------------------------------------------------------------------------ */
if( sizeof( ME2FS_I( inode )->i_data ) < len )
{
inode->i_op = &me2fs_symlink_inode_operations;
inode->i_mapping->a_ops = &me2fs_aops;
if( ( err = page_symlink( inode, symname, len ) ) )
{
inode_dec_link_count( inode );
unlock_new_inode( inode );
iput( inode );
return( err );
}
}
/* ------------------------------------------------------------------------ */
/* fast symlink */
/* ------------------------------------------------------------------------ */
else
{
inode->i_op = &me2fs_fast_symlink_inode_operations;
memcpy( ( char* )( ME2FS_I( inode )->i_data ), symname, len );
inode->i_size = len - 1;
}
mark_inode_dirty( inode );
return( addNonDir( dentry, inode ) );
}
static inline int ufs_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = ufs_add_link(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
return 0;
}
inode_dec_link_count(inode);
iput(inode);
return err;
}
static int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
if (dir->i_nlink >= minix_sb(dir->i_sb)->s_link_max)
goto out;
inode_inc_link_count(dir);
inode = minix_new_inode(dir, &err);
if (!inode)
goto out_dir;
inode->i_mode = S_IFDIR | mode;
if (dir->i_mode & S_ISGID)
inode->i_mode |= S_ISGID;
minix_set_inode(inode, 0);
inode_inc_link_count(inode);
err = minix_make_empty(inode, dir);
if (err)
goto out_fail;
err = minix_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
/*
==================================================================================
Function :me2fsRmdir
Input :struct inode *dir
< vfs inode of parent >
struct dentry *dentry
< name of directory >
Output :void
Return :int
< result >
Description :remove directory
==================================================================================
*/
static int
me2fsRmdir( struct inode *dir, struct dentry *dentry )
{
struct inode *inode;
int err;
err = -ENOTEMPTY;
inode = dentry->d_inode;
if( me2fsIsEmptyDir( inode ) )
{
if( !( err = me2fsUnlink( dir, dentry ) ) )
{
inode->i_size = 0;
inode_dec_link_count( inode );
inode_dec_link_count( dir );
}
}
return( err );
}
static int tux3_unlink(struct inode *dir, struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
change_begin(tux_sb(inode->i_sb));
int err = tux_del_dirent(dir, dentry);
if (!err) {
inode->i_ctime = dir->i_ctime;
inode_dec_link_count(inode);
}
change_end(tux_sb(inode->i_sb));
return err;
}
static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
{
int err = ext2_add_link(dentry, inode);
if (!err) {
unlock_new_inode(inode);
d_instantiate(dentry, inode);
return 0;
}
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput(inode);
return err;
}
static int replayfs_rmdir(struct inode *dir, struct dentry *dentry) {
struct inode *inode;
int err;
inode = dentry->d_inode;
err = -ENOTEMPTY;
/* NOTE: Don't need to start log operation here, that is handled in unlink */
if (replayfs_dir_is_empty(inode)) {
err = replayfs_unlink(dir, dentry);
/* If we were successful */
if (!err) {
/* Clear this inode, and decrement our link counts */
inode->i_size = 0;
inode_dec_link_count(inode);
inode_dec_link_count(dir);
}
}
return err;
}
static int simplefs_mkdir(struct inode *dir, struct dentry *dentry, int mode) {
struct inode *inode = NULL;
long ino;
int err = 0;
printk(KERN_INFO "simplefs_mkdir: %s %d\n", dentry->d_name.name, mode);
inode_inc_link_count(dir);
ino = bitmap_alloc_inode(dir->i_sb);
if (ino < 0)
return -EIO;
inode = simplefs_iget(dir->i_sb, ino);
if (IS_ERR(inode))
return -EIO;
// set inode operations
inode->i_op = &simplefs_file_inode_operations;
inode->i_fop = &simplefs_file_operations;
inode->i_mapping->a_ops = &simplefs_aops;
inode->i_mode = mode | S_IFDIR;
inode->i_nlink = 2;
inode->i_size = inode->i_blocks = inode->i_bytes = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
err = simplefs_insert_dentry(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
return 0;
}
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
inode_dec_link_count(dir);
return err;
}
static int sysv_mkdir(struct inode * dir, struct dentry *dentry, int mode)
{
struct inode * inode;
int err = -EMLINK;
if (dir->i_nlink >= SYSV_SB(dir->i_sb)->s_link_max)
goto out;
inode_inc_link_count(dir);
inode = sysv_new_inode(dir, S_IFDIR|mode);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out_dir;
sysv_set_inode(inode, 0);
inode_inc_link_count(inode);
err = sysv_make_empty(inode, dir);
if (err)
goto out_fail;
err = sysv_add_link(dentry, inode);
if (err)
goto out_fail;
d_instantiate(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
inode_dec_link_count(inode);
iput(inode);
out_dir:
inode_dec_link_count(dir);
goto out;
}
static int simplefs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) {
struct inode *inode = old_dentry->d_inode;
int err;
inode->i_ctime = CURRENT_TIME_SEC;
inode_inc_link_count(inode);
atomic_inc(&inode->i_count);
err = simplefs_insert_dentry(dentry, inode);
if (!err) {
d_instantiate(dentry, inode);
return 0;
}
inode_dec_link_count(inode);
iput(inode);
return err;
}
int qnx4_rmdir(struct inode *dir, struct dentry *dentry)
{
struct buffer_head *bh;
struct qnx4_inode_entry *de;
struct inode *inode;
int retval;
int ino;
QNX4DEBUG(("qnx4: qnx4_rmdir [%s]\n", dentry->d_name.name));
lock_kernel();
bh = qnx4_find_entry(dentry->d_name.len, dir, dentry->d_name.name,
&de, &ino);
if (bh == NULL) {
unlock_kernel();
return -ENOENT;
}
inode = dentry->d_inode;
if (inode->i_ino != ino) {
retval = -EIO;
goto end_rmdir;
}
#if 0
if (!empty_dir(inode)) {
retval = -ENOTEMPTY;
goto end_rmdir;
}
#endif
if (inode->i_nlink != 2) {
QNX4DEBUG(("empty directory has nlink!=2 (%d)\n", inode->i_nlink));
}
QNX4DEBUG(("qnx4: deleting directory\n"));
de->di_status = 0;
memset(de->di_fname, 0, sizeof de->di_fname);
de->di_mode = 0;
mark_buffer_dirty(bh);
clear_nlink(inode);
mark_inode_dirty(inode);
inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
inode_dec_link_count(dir);
retval = 0;
end_rmdir:
brelse(bh);
unlock_kernel();
return retval;
}
static int ext2_symlink (struct inode * dir, struct dentry * dentry,
const char * symname)
{
struct super_block * sb = dir->i_sb;
int err = -ENAMETOOLONG;
unsigned l = strlen(symname)+1;
struct inode * inode;
if (l > sb->s_blocksize)
goto out;
dquot_initialize(dir);
inode = ext2_new_inode (dir, S_IFLNK | S_IRWXUGO, &dentry->d_name);
err = PTR_ERR(inode);
if (IS_ERR(inode))
goto out;
if (l > sizeof (EXT2_I(inode)->i_data)) {
/* slow symlink */
inode->i_op = &ext2_symlink_inode_operations;
if (test_opt(inode->i_sb, NOBH))
inode->i_mapping->a_ops = &ext2_nobh_aops;
else
inode->i_mapping->a_ops = &ext2_aops;
err = page_symlink(inode, symname, l);
if (err)
goto out_fail;
} else {
/* fast symlink */
inode->i_op = &ext2_fast_symlink_inode_operations;
memcpy((char*)(EXT2_I(inode)->i_data),symname,l);
inode->i_size = l-1;
}
mark_inode_dirty(inode);
err = ext2_add_nondir(dentry, inode);
out:
return err;
out_fail:
inode_dec_link_count(inode);
unlock_new_inode(inode);
iput (inode);
goto out;
}
