linux-imx

/*

 *   Copyright (C) International Business Machines Corp., 2000-2004

 *   Portions Copyright (C) Christoph Hellwig, 2001-2002

 *

 *   This program is free software;  you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation; either version 2 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See

 *   the GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program;  if not, write to the Free Software

 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

 */

​

#include <linux/fs.h>

#include <linux/namei.h>

#include <linux/ctype.h>

#include <linux/quotaops.h>

#include <linux/exportfs.h>

#include "jfs_incore.h"

#include "jfs_superblock.h"

#include "jfs_inode.h"

#include "jfs_dinode.h"

#include "jfs_dmap.h"

#include "jfs_unicode.h"

#include "jfs_metapage.h"

#include "jfs_xattr.h"

#include "jfs_acl.h"

#include "jfs_debug.h"

​

/*

 * forward references

 */

const struct dentry_operations jfs_ci_dentry_operations;

​

static s64 commitZeroLink(tid_t, struct inode *);

​

/*

 * NAME:    free_ea_wmap(inode)

 *

 * FUNCTION:    free uncommitted extended attributes from working map

 *

 */

static inline void free_ea_wmap(struct inode *inode)

{

    dxd_t *ea = &JFS_IP(inode)->ea;

​

    if (ea->flag & DXD_EXTENT) {

        /* free EA pages from cache */

        invalidate_dxd_metapages(inode, *ea);

        dbFree(inode, addressDXD(ea), lengthDXD(ea));

    }

    ea->flag = 0;

}

​

/*

 * NAME:    jfs_create(dip, dentry, mode)

 *

 * FUNCTION:    create a regular file in the parent directory <dip>

 *      with name = <from dentry> and mode = <mode>

 *

 * PARAMETER:   dip - parent directory vnode

 *      dentry  - dentry of new file

 *      mode    - create mode (rwxrwxrwx).

 *      nd- nd struct

 *

 * RETURN:  Errors from subroutines

 *

 */

static int jfs_create(struct inode *dip, struct dentry *dentry, umode_t mode,

        bool excl)

{

    int rc = 0;

    tid_t tid;      /* transaction id */

    struct inode *ip = NULL;    /* child directory inode */

    ino_t ino;

    struct component_name dname;    /* child directory name */

    struct btstack btstack;

    struct inode *iplist[2];

    struct tblock *tblk;

​

    jfs_info("jfs_create: dip:0x%p name:%pd", dip, dentry);

​

    rc = dquot_initialize(dip);

    if (rc)

        goto out1;

​