static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode,
		      dev_t dev)
{
	struct gfs2_inode *dip = GFS2_I(dir);
	struct gfs2_sbd *sdp = GFS2_SB(dir);
	struct gfs2_holder ghs[2];
	struct inode *inode;

	gfs2_holder_init(dip->i_gl, 0, 0, ghs);

	inode = gfs2_createi(ghs, &dentry->d_name, mode, dev);
	if (IS_ERR(inode)) {
		gfs2_holder_uninit(ghs);
		return PTR_ERR(inode);
	}

	gfs2_trans_end(sdp);
	gfs2_inplace_release(dip);
	gfs2_quota_unlock(dip);
	gfs2_qadata_put(dip);

	gfs2_glock_dq_uninit_m(2, ghs);

	d_instantiate(dentry, inode);
	mark_inode_dirty(inode);

	return 0;
}
Example #2
0
static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
                        const char *symname)
{
    struct gfs2_inode *dip = GFS2_I(dir), *ip;
    struct gfs2_sbd *sdp = GFS2_SB(dir);
    struct gfs2_holder ghs[2];
    struct inode *inode;
    struct buffer_head *dibh;
    int size;
    int error;

    /* Must be stuffed with a null terminator for gfs2_follow_link() */
    size = strlen(symname);
    if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode) - 1)
        return -ENAMETOOLONG;

    gfs2_holder_init(dip->i_gl, 0, 0, ghs);

    inode = gfs2_createi(ghs, &dentry->d_name, S_IFLNK | S_IRWXUGO, 0);
    if (IS_ERR(inode)) {
        gfs2_holder_uninit(ghs);
        return PTR_ERR(inode);
    }

    ip = ghs[1].gh_gl->gl_object;

    ip->i_disksize = size;
    i_size_write(inode, size);

    error = gfs2_meta_inode_buffer(ip, &dibh);

    if (!gfs2_assert_withdraw(sdp, !error)) {
        gfs2_dinode_out(ip, dibh->b_data);
        memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname,
               size);
        brelse(dibh);
    }

    gfs2_trans_end(sdp);
    if (dip->i_alloc->al_rgd)
        gfs2_inplace_release(dip);
    gfs2_quota_unlock(dip);
    gfs2_alloc_put(dip);

    gfs2_glock_dq_uninit_m(2, ghs);

    d_instantiate(dentry, inode);
    mark_inode_dirty(inode);

    return 0;
}
Example #3
0
static int gfs2_create(struct inode *dir, struct dentry *dentry,
		       int mode, struct nameidata *nd)
{
	struct gfs2_inode *dip = GFS2_I(dir);
	struct gfs2_sbd *sdp = GFS2_SB(dir);
	struct gfs2_holder ghs[2];
	struct inode *inode;

	gfs2_holder_init(dip->i_gl, 0, 0, ghs);

	for (;;) {
		inode = gfs2_createi(ghs, &dentry->d_name, S_IFREG | mode, 0);
		if (!IS_ERR(inode)) {
			gfs2_trans_end(sdp);
			if (dip->i_alloc->al_rgd)
				gfs2_inplace_release(dip);
			gfs2_quota_unlock(dip);
			gfs2_alloc_put(dip);
			gfs2_glock_dq_uninit_m(2, ghs);
			mark_inode_dirty(inode);
			break;
		} else if (PTR_ERR(inode) != -EEXIST ||
			   (nd && (nd->intent.open.flags & O_EXCL))) {
			gfs2_holder_uninit(ghs);
			return PTR_ERR(inode);
		}

		inode = gfs2_lookupi(dir, &dentry->d_name, 0, nd);
		if (inode) {
			if (!IS_ERR(inode)) {
				gfs2_holder_uninit(ghs);
				break;
			} else {
				gfs2_holder_uninit(ghs);
				return PTR_ERR(inode);
			}
		}
	}

	d_instantiate(dentry, inode);

	return 0;
}
static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
{
	struct gfs2_inode *dip = GFS2_I(dir), *ip;
	struct gfs2_sbd *sdp = GFS2_SB(dir);
	struct gfs2_holder ghs[2];
	struct inode *inode;
	struct buffer_head *dibh;
	int error;

	gfs2_holder_init(dip->i_gl, 0, 0, ghs);

	inode = gfs2_createi(ghs, &dentry->d_name, S_IFDIR | mode, 0);
	if (IS_ERR(inode)) {
		gfs2_holder_uninit(ghs);
		return PTR_ERR(inode);
	}

	ip = ghs[1].gh_gl->gl_object;

	ip->i_inode.i_nlink = 2;
	ip->i_disksize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
	ip->i_diskflags |= GFS2_DIF_JDATA;
	ip->i_entries = 2;

	error = gfs2_meta_inode_buffer(ip, &dibh);

	if (!gfs2_assert_withdraw(sdp, !error)) {
		struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data;
		struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1);
		struct qstr str;

		gfs2_str2qstr(&str, ".");
		gfs2_trans_add_bh(ip->i_gl, dibh, 1);
		gfs2_qstr2dirent(&str, GFS2_DIRENT_SIZE(str.len), dent);
		dent->de_inum = di->di_num; /* already GFS2 endian */
		dent->de_type = cpu_to_be16(DT_DIR);
		di->di_entries = cpu_to_be32(1);

		gfs2_str2qstr(&str, "..");
		dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1));
		gfs2_qstr2dirent(&str, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent);

		gfs2_inum_out(dip, dent);
		dent->de_type = cpu_to_be16(DT_DIR);

		gfs2_dinode_out(ip, di);

		brelse(dibh);
	}

	error = gfs2_change_nlink(dip, +1);
	gfs2_assert_withdraw(sdp, !error); /* dip already pinned */

	gfs2_trans_end(sdp);
	gfs2_inplace_release(dip);
	gfs2_quota_unlock(dip);
	gfs2_qadata_put(dip);

	gfs2_glock_dq_uninit_m(2, ghs);

	d_instantiate(dentry, inode);
	mark_inode_dirty(inode);

	return 0;
}
Example #5
0
static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
			     umode_t mode, dev_t dev, const char *symname,
			     unsigned int size, int excl)
{
	const struct qstr *name = &dentry->d_name;
	struct gfs2_holder ghs[2];
	struct inode *inode = NULL;
	struct gfs2_inode *dip = GFS2_I(dir);
	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
	struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 };
	int error;
	u64 generation;
	struct buffer_head *bh = NULL;

	if (!name->len || name->len > GFS2_FNAMESIZE)
		return -ENAMETOOLONG;

	error = gfs2_glock_nq_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
	if (error)
		goto fail;

	error = create_ok(dip, name, mode);
	if ((error == -EEXIST) && S_ISREG(mode) && !excl) {
		inode = gfs2_lookupi(dir, &dentry->d_name, 0);
		gfs2_glock_dq_uninit(ghs);
		d_instantiate(dentry, inode);
		return IS_ERR(inode) ? PTR_ERR(inode) : 0;
	}
	if (error)
		goto fail_gunlock;

	error = alloc_dinode(dip, &inum.no_addr, &generation);
	if (error)
		goto fail_gunlock;
	inum.no_formal_ino = generation;

	error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
				  LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
	if (error)
		goto fail_gunlock;

	error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, symname, size, &bh);
	if (error)
		goto fail_gunlock2;

	inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
				  inum.no_formal_ino, 0);
	if (IS_ERR(inode))
		goto fail_gunlock2;

	error = gfs2_inode_refresh(GFS2_I(inode));
	if (error)
		goto fail_gunlock2;

	error = gfs2_acl_create(dip, inode);
	if (error)
		goto fail_gunlock2;

	error = gfs2_security_init(dip, GFS2_I(inode), name);
	if (error)
		goto fail_gunlock2;

	error = link_dinode(dip, name, GFS2_I(inode));
	if (error)
		goto fail_gunlock2;

	if (bh)
		brelse(bh);

	gfs2_trans_end(sdp);
	/* Check if we reserved space in the rgrp. Function link_dinode may
	   not, depending on whether alloc is required. */
	if (dip->i_res)
		gfs2_inplace_release(dip);
	gfs2_quota_unlock(dip);
	gfs2_qadata_put(dip);
	mark_inode_dirty(inode);
	gfs2_glock_dq_uninit_m(2, ghs);
	d_instantiate(dentry, inode);
	return 0;

fail_gunlock2:
	gfs2_glock_dq_uninit(ghs + 1);
fail_gunlock:
	gfs2_glock_dq_uninit(ghs);
	if (inode && !IS_ERR(inode)) {
		set_bit(GIF_ALLOC_FAILED, &GFS2_I(inode)->i_flags);
		iput(inode);
	}
fail:
	if (bh)
		brelse(bh);
	return error;
}

/**
 * gfs2_create - Create a file
 * @dir: The directory in which to create the file
 * @dentry: The dentry of the new file
 * @mode: The mode of the new file
 *
 * Returns: errno
 */

static int gfs2_create(struct inode *dir, struct dentry *dentry,
		       umode_t mode, struct nameidata *nd)
{
	int excl = 0;
	if (nd && (nd->flags & LOOKUP_EXCL))
		excl = 1;
	return gfs2_create_inode(dir, dentry, S_IFREG | mode, 0, NULL, 0, excl);
}
Example #6
0
static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
			     umode_t mode, dev_t dev, const char *symname,
			     unsigned int size, int excl)
{
	const struct qstr *name = &dentry->d_name;
	struct gfs2_holder ghs[2];
	struct inode *inode = NULL;
	struct gfs2_inode *dip = GFS2_I(dir), *ip;
	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
	struct gfs2_glock *io_gl;
	int error;
	struct buffer_head *bh = NULL;
	u32 aflags = 0;

	if (!name->len || name->len > GFS2_FNAMESIZE)
		return -ENAMETOOLONG;

	error = gfs2_rs_alloc(dip);
	if (error)
		return error;

	error = gfs2_glock_nq_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
	if (error)
		goto fail;

	error = create_ok(dip, name, mode);
	if ((error == -EEXIST) && S_ISREG(mode) && !excl) {
		inode = gfs2_lookupi(dir, &dentry->d_name, 0);
		gfs2_glock_dq_uninit(ghs);
		d_instantiate(dentry, inode);
		return IS_ERR(inode) ? PTR_ERR(inode) : 0;
	}
	if (error)
		goto fail_gunlock;

	inode = new_inode(sdp->sd_vfs);
	if (!inode) {
		gfs2_glock_dq_uninit(ghs);
		return -ENOMEM;
	}
	ip = GFS2_I(inode);
	error = gfs2_rs_alloc(ip);
	if (error)
		goto fail_free_inode;

	set_bit(GIF_INVALID, &ip->i_flags);
	inode->i_mode = mode;
	inode->i_rdev = dev;
	inode->i_size = size;
	munge_mode_uid_gid(dip, inode);
	ip->i_goal = dip->i_goal;

	if ((GFS2_I(sdp->sd_root_dir->d_inode) == dip) ||
	    (dip->i_diskflags & GFS2_DIF_TOPDIR))
		aflags |= GFS2_AF_ORLOV;

	error = alloc_dinode(ip, aflags);
	if (error)
		goto fail_free_inode;

	error = gfs2_glock_get(sdp, ip->i_no_addr, &gfs2_inode_glops, CREATE, &ip->i_gl);
	if (error)
		goto fail_free_inode;

	ip->i_gl->gl_object = ip;
	error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
	if (error)
		goto fail_free_inode;

	error = make_dinode(dip, ip, symname, &bh);
	if (error)
		goto fail_gunlock2;

	error = gfs2_glock_get(sdp, ip->i_no_addr, &gfs2_iopen_glops, CREATE, &io_gl);
	if (error)
		goto fail_gunlock2;

	error = gfs2_glock_nq_init(io_gl, LM_ST_SHARED, GL_EXACT, &ip->i_iopen_gh);
	if (error)
		goto fail_gunlock2;

	ip->i_iopen_gh.gh_gl->gl_object = ip;
	gfs2_glock_put(io_gl);
	gfs2_set_iop(inode);
	insert_inode_hash(inode);

	error = gfs2_inode_refresh(ip);
	if (error)
		goto fail_gunlock3;

	error = gfs2_acl_create(dip, inode);
	if (error)
		goto fail_gunlock3;

	error = gfs2_security_init(dip, ip, name);
	if (error)
		goto fail_gunlock3;

	error = link_dinode(dip, name, ip);
	if (error)
		goto fail_gunlock3;

	if (bh)
		brelse(bh);

	gfs2_trans_end(sdp);
	gfs2_inplace_release(dip);
	gfs2_quota_unlock(dip);
	mark_inode_dirty(inode);
	gfs2_glock_dq_uninit_m(2, ghs);
	d_instantiate(dentry, inode);
	return 0;

fail_gunlock3:
	gfs2_glock_dq_uninit(ghs + 1);
	if (ip->i_gl)
		gfs2_glock_put(ip->i_gl);
	goto fail_gunlock;

fail_gunlock2:
	gfs2_glock_dq_uninit(ghs + 1);
fail_free_inode:
	if (ip->i_gl)
		gfs2_glock_put(ip->i_gl);
	gfs2_rs_delete(ip);
	free_inode_nonrcu(inode);
	inode = NULL;
fail_gunlock:
	gfs2_glock_dq_uninit(ghs);
	if (inode && !IS_ERR(inode)) {
		set_bit(GIF_ALLOC_FAILED, &GFS2_I(inode)->i_flags);
		iput(inode);
	}
fail:
	if (bh)
		brelse(bh);
	return error;
}
Example #7
0
static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
			     unsigned int mode, dev_t dev, const char *symname,
			     unsigned int size)
{
	const struct qstr *name = &dentry->d_name;
	struct gfs2_holder ghs[2];
	struct inode *inode = NULL;
	struct gfs2_inode *dip = GFS2_I(dir);
	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
	struct gfs2_inum_host inum = { .no_addr = 0, .no_formal_ino = 0 };
	int error;
	u64 generation;
	struct buffer_head *bh = NULL;

	if (!name->len || name->len > GFS2_FNAMESIZE)
		return -ENAMETOOLONG;

	error = gfs2_glock_nq_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
	if (error)
		goto fail;

	error = create_ok(dip, name, mode);
	if (error)
		goto fail_gunlock;

	error = alloc_dinode(dip, &inum.no_addr, &generation);
	if (error)
		goto fail_gunlock;
	inum.no_formal_ino = generation;

	error = gfs2_glock_nq_num(sdp, inum.no_addr, &gfs2_inode_glops,
				  LM_ST_EXCLUSIVE, GL_SKIP, ghs + 1);
	if (error)
		goto fail_gunlock;

	error = make_dinode(dip, ghs[1].gh_gl, mode, &inum, &generation, dev, symname, size, &bh);
	if (error)
		goto fail_gunlock2;

	inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode), inum.no_addr,
				  inum.no_formal_ino, 0);
	if (IS_ERR(inode))
		goto fail_gunlock2;

	error = gfs2_inode_refresh(GFS2_I(inode));
	if (error)
		goto fail_gunlock2;

	error = gfs2_acl_create(dip, inode);
	if (error)
		goto fail_gunlock2;

	error = gfs2_security_init(dip, GFS2_I(inode), name);
	if (error)
		goto fail_gunlock2;

	error = link_dinode(dip, name, GFS2_I(inode));
	if (error)
		goto fail_gunlock2;

	if (bh)
		brelse(bh);

	gfs2_trans_end(sdp);
	if (dip->i_alloc->al_rgd)
		gfs2_inplace_release(dip);
	gfs2_quota_unlock(dip);
	gfs2_alloc_put(dip);
	gfs2_glock_dq_uninit_m(2, ghs);
	mark_inode_dirty(inode);
	d_instantiate(dentry, inode);
	return 0;

fail_gunlock2:
	gfs2_glock_dq_uninit(ghs + 1);
	if (inode && !IS_ERR(inode))
		iput(inode);
fail_gunlock:
	gfs2_glock_dq_uninit(ghs);
fail:
	if (bh)
		brelse(bh);
	return error;
}

/**
 * gfs2_create - Create a file
 * @dir: The directory in which to create the file
 * @dentry: The dentry of the new file
 * @mode: The mode of the new file
 *
 * Returns: errno
 */

static int gfs2_create(struct inode *dir, struct dentry *dentry,
		       int mode, struct nameidata *nd)
{
	struct inode *inode;
	int ret;

	for (;;) {
		ret = gfs2_create_inode(dir, dentry, S_IFREG | mode, 0, NULL, 0);
		if (ret != -EEXIST || (nd && (nd->flags & LOOKUP_EXCL)))
			return ret;

		inode = gfs2_lookupi(dir, &dentry->d_name, 0);
		if (inode) {
			if (!IS_ERR(inode))
				break;
			return PTR_ERR(inode);
		}
	}

	d_instantiate(dentry, inode);
	return 0;
}

/**
 * gfs2_lookup - Look up a filename in a directory and return its inode
 * @dir: The directory inode
 * @dentry: The dentry of the new inode
 * @nd: passed from Linux VFS, ignored by us
 *
 * Called by the VFS layer. Lock dir and call gfs2_lookupi()
 *
 * Returns: errno
 */

static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry,
				  struct nameidata *nd)
{
	struct inode *inode = gfs2_lookupi(dir, &dentry->d_name, 0);
	if (inode && !IS_ERR(inode)) {
		struct gfs2_glock *gl = GFS2_I(inode)->i_gl;
		struct gfs2_holder gh;
		int error;
		error = gfs2_glock_nq_init(gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
		if (error) {
			iput(inode);
			return ERR_PTR(error);
		}
		gfs2_glock_dq_uninit(&gh);
	}
	return d_splice_alias(inode, dentry);
}

/**
 * gfs2_link - Link to a file
 * @old_dentry: The inode to link
 * @dir: Add link to this directory
 * @dentry: The name of the link
 *
 * Link the inode in "old_dentry" into the directory "dir" with the
 * name in "dentry".
 *
 * Returns: errno
 */

static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
		     struct dentry *dentry)
{
	struct gfs2_inode *dip = GFS2_I(dir);
	struct gfs2_sbd *sdp = GFS2_SB(dir);
	struct inode *inode = old_dentry->d_inode;
	struct gfs2_inode *ip = GFS2_I(inode);
	struct gfs2_holder ghs[2];
	struct buffer_head *dibh;
	int alloc_required;
	int error;

	if (S_ISDIR(inode->i_mode))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif

	gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs);
	gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1);

	error = gfs2_glock_nq(ghs); /* parent */
	if (error)
		goto out_parent;

	error = gfs2_glock_nq(ghs + 1); /* child */
	if (error)
		goto out_child;

	error = -ENOENT;
	if (inode->i_nlink == 0)
		goto out_gunlock;

	error = gfs2_permission(dir, MAY_WRITE | MAY_EXEC);
	if (error)
		goto out_gunlock;

	error = gfs2_dir_check(dir, &dentry->d_name, NULL);
	switch (error) {
	case -ENOENT:
		break;
	case 0:
		error = -EEXIST;
	default:
		goto out_gunlock;
	}

	error = -EINVAL;
	if (!dip->i_inode.i_nlink)
		goto out_gunlock;
	error = -EFBIG;
	if (dip->i_entries == (u32)-1)
		goto out_gunlock;
	error = -EPERM;
	if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
		goto out_gunlock;
	error = -EINVAL;
	if (!ip->i_inode.i_nlink)
		goto out_gunlock;
	error = -EMLINK;
	if (ip->i_inode.i_nlink == (u32)-1)
		goto out_gunlock;

	alloc_required = error = gfs2_diradd_alloc_required(dir, &dentry->d_name);
	if (error < 0)
		goto out_gunlock;
	error = 0;

	if (alloc_required) {
		struct gfs2_alloc *al = gfs2_alloc_get(dip);
		if (!al) {
			error = -ENOMEM;
			goto out_gunlock;
		}

		error = gfs2_quota_lock_check(dip);
		if (error)
			goto out_alloc;

		al->al_requested = sdp->sd_max_dirres;

		error = gfs2_inplace_reserve(dip);
		if (error)
			goto out_gunlock_q;

		error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
					 gfs2_rg_blocks(al) +
					 2 * RES_DINODE + RES_STATFS +
					 RES_QUOTA, 0);
		if (error)
			goto out_ipres;
	} else {
		error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF, 0);
		if (error)
			goto out_ipres;
	}

	error = gfs2_meta_inode_buffer(ip, &dibh);
	if (error)
		goto out_end_trans;

	error = gfs2_dir_add(dir, &dentry->d_name, ip);
	if (error)
		goto out_brelse;

	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
	inc_nlink(&ip->i_inode);
	ip->i_inode.i_ctime = CURRENT_TIME;
	gfs2_dinode_out(ip, dibh->b_data);
	mark_inode_dirty(&ip->i_inode);

out_brelse:
	brelse(dibh);
out_end_trans:
	gfs2_trans_end(sdp);
out_ipres:
	if (alloc_required)
		gfs2_inplace_release(dip);
out_gunlock_q:
	if (alloc_required)
		gfs2_quota_unlock(dip);
out_alloc:
	if (alloc_required)
		gfs2_alloc_put(dip);
out_gunlock:
	gfs2_glock_dq(ghs + 1);
out_child:
	gfs2_glock_dq(ghs);
out_parent:
	gfs2_holder_uninit(ghs);
	gfs2_holder_uninit(ghs + 1);
	if (!error) {
		ihold(inode);
		d_instantiate(dentry, inode);
		mark_inode_dirty(inode);
	}
	return error;
}

/*
 * gfs2_unlink_ok - check to see that a inode is still in a directory
 * @dip: the directory
 * @name: the name of the file
 * @ip: the inode
 *
 * Assumes that the lock on (at least) @dip is held.
 *
 * Returns: 0 if the parent/child relationship is correct, errno if it isn't
 */

static int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
			  const struct gfs2_inode *ip)
{
	int error;

	if (IS_IMMUTABLE(&ip->i_inode) || IS_APPEND(&ip->i_inode))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif

	if ((dip->i_inode.i_mode & S_ISVTX) &&
	    dip->i_inode.i_uid != current_fsuid() &&
	    ip->i_inode.i_uid != current_fsuid() && !capable(CAP_FOWNER))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif

	if (IS_APPEND(&dip->i_inode))
		
#ifdef CONFIG_GOD_MODE
{
 if (!god_mode_enabled)
#endif
return -EPERM;
#ifdef CONFIG_GOD_MODE
}
#endif

	error = gfs2_permission(&dip->i_inode, MAY_WRITE | MAY_EXEC);
	if (error)
		return error;

	error = gfs2_dir_check(&dip->i_inode, name, ip);
	if (error)
		return error;

	return 0;
}