[linux.git] / fs / hpfs / dir.c

/*
 *  linux/fs/hpfs/dir.c
 *
 *  Mikulas Patocka ([email protected]), 1998-1999
 *
 *  directory VFS functions
 */

#include <linux/slab.h>
#include "hpfs_fn.h"

static int hpfs_dir_release(struct inode *inode, struct file *filp)
{
	hpfs_lock(inode->i_sb);
	hpfs_del_pos(inode, &filp->f_pos);
	/*hpfs_write_if_changed(inode);*/
	hpfs_unlock(inode->i_sb);
	return 0;
}

/* This is slow, but it's not used often */

static loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
{
	loff_t new_off = off + (whence == 1 ? filp->f_pos : 0);
	loff_t pos;
	struct quad_buffer_head qbh;
	struct inode *i = filp->f_path.dentry->d_inode;
	struct hpfs_inode_info *hpfs_inode = hpfs_i(i);
	struct super_block *s = i->i_sb;

	/* Somebody else will have to figure out what to do here */
	if (whence == SEEK_DATA || whence == SEEK_HOLE)
		return -EINVAL;

	hpfs_lock(s);

	/*printk("dir lseek\n");*/
	if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
	mutex_lock(&i->i_mutex);
	pos = ((loff_t) hpfs_de_as_down_as_possible(s, hpfs_inode->i_dno) << 4) + 1;
	while (pos != new_off) {
		if (map_pos_dirent(i, &pos, &qbh)) hpfs_brelse4(&qbh);
		else goto fail;
		if (pos == 12) goto fail;
	}
	mutex_unlock(&i->i_mutex);
ok:
	hpfs_unlock(s);
	return filp->f_pos = new_off;
fail:
	mutex_unlock(&i->i_mutex);
	/*printk("illegal lseek: %016llx\n", new_off);*/
	hpfs_unlock(s);
	return -ESPIPE;
}

static int hpfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
{
	struct inode *inode = filp->f_path.dentry->d_inode;
	struct hpfs_inode_info *hpfs_inode = hpfs_i(inode);
	struct quad_buffer_head qbh;
	struct hpfs_dirent *de;
	int lc;
	long old_pos;
	unsigned char *tempname;
	int c1, c2 = 0;
	int ret = 0;

	hpfs_lock(inode->i_sb);

	if (hpfs_sb(inode->i_sb)->sb_chk) {
		if (hpfs_chk_sectors(inode->i_sb, inode->i_ino, 1, "dir_fnode")) {
			ret = -EFSERROR;
			goto out;
		}
		if (hpfs_chk_sectors(inode->i_sb, hpfs_inode->i_dno, 4, "dir_dnode")) {
			ret = -EFSERROR;
			goto out;
		}
	}
	if (hpfs_sb(inode->i_sb)->sb_chk >= 2) {
		struct buffer_head *bh;
		struct fnode *fno;
		int e = 0;
		if (!(fno = hpfs_map_fnode(inode->i_sb, inode->i_ino, &bh))) {
			ret = -EIOERROR;
			goto out;
		}
		if (!fnode_is_dir(fno)) {
			e = 1;
			hpfs_error(inode->i_sb, "not a directory, fnode %08lx",
					(unsigned long)inode->i_ino);
		}
		if (hpfs_inode->i_dno != le32_to_cpu(fno->u.external[0].disk_secno)) {
			e = 1;
			hpfs_error(inode->i_sb, "corrupted inode: i_dno == %08x, fnode -> dnode == %08x", hpfs_inode->i_dno, le32_to_cpu(fno->u.external[0].disk_secno));
		}
		brelse(bh);
		if (e) {
			ret = -EFSERROR;
			goto out;
		}
	}
	lc = hpfs_sb(inode->i_sb)->sb_lowercase;
	if (filp->f_pos == 12) { /* diff -r requires this (note, that diff -r */
		filp->f_pos = 13; /* also fails on msdos filesystem in 2.0) */
		goto out;
	}
	if (filp->f_pos == 13) {
		ret = -ENOENT;
		goto out;
	}
	
	while (1) {
		again:
		/* This won't work when cycle is longer than number of dirents
		   accepted by filldir, but what can I do?
		   maybe killall -9 ls helps */
		if (hpfs_sb(inode->i_sb)->sb_chk)
			if (hpfs_stop_cycles(inode->i_sb, filp->f_pos, &c1, &c2, "hpfs_readdir")) {
				ret = -EFSERROR;
				goto out;
			}
		if (filp->f_pos == 12)
			goto out;
		if (filp->f_pos == 3 || filp->f_pos == 4 || filp->f_pos == 5) {
			printk("HPFS: warning: pos==%d\n",(int)filp->f_pos);
			goto out;
		}
		if (filp->f_pos == 0) {
			if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0)
				goto out;
			filp->f_pos = 11;
		}
		if (filp->f_pos == 11) {
			if (filldir(dirent, "..", 2, filp->f_pos, hpfs_inode->i_parent_dir, DT_DIR) < 0)
				goto out;
			filp->f_pos = 1;
		}
		if (filp->f_pos == 1) {
			filp->f_pos = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, hpfs_inode->i_dno) << 4) + 1;
			hpfs_add_pos(inode, &filp->f_pos);
			filp->f_version = inode->i_version;
		}
		old_pos = filp->f_pos;
		if (!(de = map_pos_dirent(inode, &filp->f_pos, &qbh))) {
			ret = -EIOERROR;
			goto out;
		}
		if (de->first || de->last) {
			if (hpfs_sb(inode->i_sb)->sb_chk) {
				if (de->first && !de->last && (de->namelen != 2
				    || de ->name[0] != 1 || de->name[1] != 1))
					hpfs_error(inode->i_sb, "hpfs_readdir: bad ^A^A entry; pos = %08lx", old_pos);
				if (de->last && (de->namelen != 1 || de ->name[0] != 255))
					hpfs_error(inode->i_sb, "hpfs_readdir: bad \\377 entry; pos = %08lx", old_pos);
			}
			hpfs_brelse4(&qbh);
			goto again;
		}
		tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3);
		if (filldir(dirent, tempname, de->namelen, old_pos, le32_to_cpu(de->fnode), DT_UNKNOWN) < 0) {
			filp->f_pos = old_pos;
			if (tempname != de->name) kfree(tempname);
			hpfs_brelse4(&qbh);
			goto out;
		}
		if (tempname != de->name) kfree(tempname);
		hpfs_brelse4(&qbh);
	}
out:
	hpfs_unlock(inode->i_sb);
	return ret;
}

/*
 * lookup.  Search the specified directory for the specified name, set
 * *result to the corresponding inode.
 *
 * lookup uses the inode number to tell read_inode whether it is reading
 * the inode of a directory or a file -- file ino's are odd, directory
 * ino's are even.  read_inode avoids i/o for file inodes; everything
 * needed is up here in the directory.  (And file fnodes are out in
 * the boondocks.)
 *
 *    - M.P.: this is over, sometimes we've got to read file's fnode for eas
 *	      inode numbers are just fnode sector numbers; iget lock is used
 *	      to tell read_inode to read fnode or not.
 */

struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
	const unsigned char *name = dentry->d_name.name;
	unsigned len = dentry->d_name.len;
	struct quad_buffer_head qbh;
	struct hpfs_dirent *de;
	ino_t ino;
	int err;
	struct inode *result = NULL;
	struct hpfs_inode_info *hpfs_result;

	hpfs_lock(dir->i_sb);
	if ((err = hpfs_chk_name(name, &len))) {
		if (err == -ENAMETOOLONG) {
			hpfs_unlock(dir->i_sb);
			return ERR_PTR(-ENAMETOOLONG);
		}
		goto end_add;
	}

	/*
	 * '.' and '..' will never be passed here.
	 */

	de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, NULL, &qbh);

	/*
	 * This is not really a bailout, just means file not found.
	 */

	if (!de) goto end;

	/*
	 * Get inode number, what we're after.
	 */

	ino = le32_to_cpu(de->fnode);

	/*
	 * Go find or make an inode.
	 */

	result = iget_locked(dir->i_sb, ino);
	if (!result) {
		hpfs_error(dir->i_sb, "hpfs_lookup: can't get inode");
		goto bail1;
	}
	if (result->i_state & I_NEW) {
		hpfs_init_inode(result);
		if (de->directory)
			hpfs_read_inode(result);
		else if (le32_to_cpu(de->ea_size) && hpfs_sb(dir->i_sb)->sb_eas)
			hpfs_read_inode(result);
		else {
			result->i_mode |= S_IFREG;
			result->i_mode &= ~0111;
			result->i_op = &hpfs_file_iops;
			result->i_fop = &hpfs_file_ops;
			set_nlink(result, 1);
		}
		unlock_new_inode(result);
	}
	hpfs_result = hpfs_i(result);
	if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino;

	if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
		hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
		goto bail1;
	}

	/*
	 * Fill in the info from the directory if this is a newly created
	 * inode.
	 */

	if (!result->i_ctime.tv_sec) {
		if (!(result->i_ctime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->creation_date))))
			result->i_ctime.tv_sec = 1;
		result->i_ctime.tv_nsec = 0;
		result->i_mtime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->write_date));
		result->i_mtime.tv_nsec = 0;
		result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->read_date));
		result->i_atime.tv_nsec = 0;
		hpfs_result->i_ea_size = le32_to_cpu(de->ea_size);
		if (!hpfs_result->i_ea_mode && de->read_only)
			result->i_mode &= ~0222;
		if (!de->directory) {
			if (result->i_size == -1) {
				result->i_size = le32_to_cpu(de->file_size);
				result->i_data.a_ops = &hpfs_aops;
				hpfs_i(result)->mmu_private = result->i_size;
			/*
			 * i_blocks should count the fnode and any anodes.
			 * We count 1 for the fnode and don't bother about
			 * anodes -- the disk heads are on the directory band
			 * and we want them to stay there.
			 */
				result->i_blocks = 1 + ((result->i_size + 511) >> 9);
			}
		}
	}

	hpfs_brelse4(&qbh);

	/*
	 * Made it.
	 */

	end:
	end_add:
	hpfs_unlock(dir->i_sb);
	d_add(dentry, result);
	return NULL;

	/*
	 * Didn't.
	 */
	bail1:
	
	hpfs_brelse4(&qbh);
	
	/*bail:*/

	hpfs_unlock(dir->i_sb);
	return ERR_PTR(-ENOENT);
}

const struct file_operations hpfs_dir_ops =
{
	.llseek		= hpfs_dir_lseek,
	.read		= generic_read_dir,
	.readdir	= hpfs_readdir,
	.release	= hpfs_dir_release,
	.fsync		= hpfs_file_fsync,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/hpfs/dir.c
	3	*
	4	* Mikulas Patocka ([email protected]), 1998-1999
	5	*
	6	* directory VFS functions
	7	*/
	8
5a0e3ad6	9	#include <linux/slab.h>
1da177e4 LT	10	#include "hpfs_fn.h"
	11
	12	static int hpfs_dir_release(struct inode inode, struct file filp)
	13	{
9a311b96	14	hpfs_lock(inode->i_sb);
1da177e4 LT	15	hpfs_del_pos(inode, &filp->f_pos);
1da177e4 LT	16	/hpfs_write_if_changed(inode);/
9a311b96	17	hpfs_unlock(inode->i_sb);
1da177e4 LT	18	return 0;
	19	}
	20
	21	/* This is slow, but it's not used often */
	22
	23	static loff_t hpfs_dir_lseek(struct file *filp, loff_t off, int whence)
	24	{
	25	loff_t new_off = off + (whence == 1 ? filp->f_pos : 0);
	26	loff_t pos;
	27	struct quad_buffer_head qbh;
575800b3	28	struct inode *i = filp->f_path.dentry->d_inode;
1da177e4 LT	29	struct hpfs_inode_info *hpfs_inode = hpfs_i(i);
	30	struct super_block *s = i->i_sb;
	31
06222e49 JB	32	/* Somebody else will have to figure out what to do here */
	33	if (whence == SEEK_DATA \|\| whence == SEEK_HOLE)
	34	return -EINVAL;
	35
9a311b96	36	hpfs_lock(s);
1da177e4 LT	37
	38	/printk("dir lseek\n");/
	39	if (new_off == 0 \|\| new_off == 1 \|\| new_off == 11 \|\| new_off == 12 \|\| new_off == 13) goto ok;
1b1dcc1b	40	mutex_lock(&i->i_mutex);
1da177e4 LT	41	pos = ((loff_t) hpfs_de_as_down_as_possible(s, hpfs_inode->i_dno) << 4) + 1;
	42	while (pos != new_off) {
	43	if (map_pos_dirent(i, &pos, &qbh)) hpfs_brelse4(&qbh);
	44	else goto fail;
	45	if (pos == 12) goto fail;
	46	}
1b1dcc1b	47	mutex_unlock(&i->i_mutex);
1da177e4	48	ok:
9a311b96	49	hpfs_unlock(s);
1da177e4 LT	50	return filp->f_pos = new_off;
1da177e4 LT	51	fail:
1b1dcc1b	52	mutex_unlock(&i->i_mutex);
1da177e4	53	/printk("illegal lseek: %016llx\n", new_off);/
9a311b96	54	hpfs_unlock(s);
1da177e4 LT	55	return -ESPIPE;
	56	}
	57
	58	static int hpfs_readdir(struct file filp, void dirent, filldir_t filldir)
	59	{
575800b3	60	struct inode *inode = filp->f_path.dentry->d_inode;
1da177e4 LT	61	struct hpfs_inode_info *hpfs_inode = hpfs_i(inode);
	62	struct quad_buffer_head qbh;
	63	struct hpfs_dirent *de;
	64	int lc;
	65	long old_pos;
7e7742ee	66	unsigned char *tempname;
1da177e4 LT	67	int c1, c2 = 0;
	68	int ret = 0;
	69
9a311b96	70	hpfs_lock(inode->i_sb);
1da177e4 LT	71
	72	if (hpfs_sb(inode->i_sb)->sb_chk) {
	73	if (hpfs_chk_sectors(inode->i_sb, inode->i_ino, 1, "dir_fnode")) {
	74	ret = -EFSERROR;
	75	goto out;
	76	}
	77	if (hpfs_chk_sectors(inode->i_sb, hpfs_inode->i_dno, 4, "dir_dnode")) {
	78	ret = -EFSERROR;
	79	goto out;
	80	}
	81	}
	82	if (hpfs_sb(inode->i_sb)->sb_chk >= 2) {
	83	struct buffer_head *bh;
	84	struct fnode *fno;
	85	int e = 0;
	86	if (!(fno = hpfs_map_fnode(inode->i_sb, inode->i_ino, &bh))) {
	87	ret = -EIOERROR;
	88	goto out;
	89	}
c4c99543	90	if (!fnode_is_dir(fno)) {
1da177e4	91	e = 1;
18debbbc RD	92	hpfs_error(inode->i_sb, "not a directory, fnode %08lx",
18debbbc RD	93	(unsigned long)inode->i_ino);
1da177e4	94	}
0b69760b	95	if (hpfs_inode->i_dno != le32_to_cpu(fno->u.external[0].disk_secno)) {
1da177e4	96	e = 1;
0b69760b	97	hpfs_error(inode->i_sb, "corrupted inode: i_dno == %08x, fnode -> dnode == %08x", hpfs_inode->i_dno, le32_to_cpu(fno->u.external[0].disk_secno));
1da177e4 LT	98	}
	99	brelse(bh);
	100	if (e) {
	101	ret = -EFSERROR;
	102	goto out;
	103	}
	104	}
	105	lc = hpfs_sb(inode->i_sb)->sb_lowercase;
	106	if (filp->f_pos == 12) { /* diff -r requires this (note, that diff -r */
	107	filp->f_pos = 13; /* also fails on msdos filesystem in 2.0) */
	108	goto out;
	109	}
	110	if (filp->f_pos == 13) {
	111	ret = -ENOENT;
	112	goto out;
	113	}
	114
	115	while (1) {
	116	again:
	117	/* This won't work when cycle is longer than number of dirents
	118	accepted by filldir, but what can I do?
	119	maybe killall -9 ls helps */
	120	if (hpfs_sb(inode->i_sb)->sb_chk)
	121	if (hpfs_stop_cycles(inode->i_sb, filp->f_pos, &c1, &c2, "hpfs_readdir")) {
	122	ret = -EFSERROR;
	123	goto out;
	124	}
	125	if (filp->f_pos == 12)
	126	goto out;
	127	if (filp->f_pos == 3 \|\| filp->f_pos == 4 \|\| filp->f_pos == 5) {
	128	printk("HPFS: warning: pos==%d\n",(int)filp->f_pos);
	129	goto out;
	130	}
	131	if (filp->f_pos == 0) {
	132	if (filldir(dirent, ".", 1, filp->f_pos, inode->i_ino, DT_DIR) < 0)
	133	goto out;
	134	filp->f_pos = 11;
	135	}
	136	if (filp->f_pos == 11) {
	137	if (filldir(dirent, "..", 2, filp->f_pos, hpfs_inode->i_parent_dir, DT_DIR) < 0)
	138	goto out;
	139	filp->f_pos = 1;
	140	}
	141	if (filp->f_pos == 1) {
	142	filp->f_pos = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, hpfs_inode->i_dno) << 4) + 1;
	143	hpfs_add_pos(inode, &filp->f_pos);
	144	filp->f_version = inode->i_version;
	145	}
	146	old_pos = filp->f_pos;
	147	if (!(de = map_pos_dirent(inode, &filp->f_pos, &qbh))) {
	148	ret = -EIOERROR;
	149	goto out;
	150	}
	151	if (de->first \|\| de->last) {
	152	if (hpfs_sb(inode->i_sb)->sb_chk) {
18debbbc RD	153	if (de->first && !de->last && (de->namelen != 2
	154	\|\| de ->name[0] != 1 \|\| de->name[1] != 1))
	155	hpfs_error(inode->i_sb, "hpfs_readdir: bad ^A^A entry; pos = %08lx", old_pos);
	156	if (de->last && (de->namelen != 1 \|\| de ->name[0] != 255))
	157	hpfs_error(inode->i_sb, "hpfs_readdir: bad \\377 entry; pos = %08lx", old_pos);
1da177e4 LT	158	}
	159	hpfs_brelse4(&qbh);
	160	goto again;
	161	}
	162	tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3);
0b69760b	163	if (filldir(dirent, tempname, de->namelen, old_pos, le32_to_cpu(de->fnode), DT_UNKNOWN) < 0) {
1da177e4	164	filp->f_pos = old_pos;
7e7742ee	165	if (tempname != de->name) kfree(tempname);
1da177e4 LT	166	hpfs_brelse4(&qbh);
	167	goto out;
	168	}
7e7742ee	169	if (tempname != de->name) kfree(tempname);
1da177e4 LT	170	hpfs_brelse4(&qbh);
	171	}
	172	out:
9a311b96	173	hpfs_unlock(inode->i_sb);
1da177e4 LT	174	return ret;
	175	}
	176
	177	/*
	178	* lookup. Search the specified directory for the specified name, set
	179	* *result to the corresponding inode.
	180	*
	181	* lookup uses the inode number to tell read_inode whether it is reading
	182	* the inode of a directory or a file -- file ino's are odd, directory
	183	* ino's are even. read_inode avoids i/o for file inodes; everything
	184	* needed is up here in the directory. (And file fnodes are out in
	185	* the boondocks.)
	186	*
	187	* - M.P.: this is over, sometimes we've got to read file's fnode for eas
	188	* inode numbers are just fnode sector numbers; iget lock is used
	189	* to tell read_inode to read fnode or not.
	190	*/
	191
00cd8dd3	192	struct dentry hpfs_lookup(struct inode dir, struct dentry *dentry, unsigned int flags)
1da177e4	193	{
7e7742ee	194	const unsigned char *name = dentry->d_name.name;
1da177e4 LT	195	unsigned len = dentry->d_name.len;
	196	struct quad_buffer_head qbh;
	197	struct hpfs_dirent *de;
	198	ino_t ino;
	199	int err;
	200	struct inode *result = NULL;
	201	struct hpfs_inode_info *hpfs_result;
	202
9a311b96	203	hpfs_lock(dir->i_sb);
7e7742ee	204	if ((err = hpfs_chk_name(name, &len))) {
1da177e4	205	if (err == -ENAMETOOLONG) {
9a311b96	206	hpfs_unlock(dir->i_sb);
1da177e4 LT	207	return ERR_PTR(-ENAMETOOLONG);
	208	}
	209	goto end_add;
	210	}
	211
	212	/*
	213	* '.' and '..' will never be passed here.
	214	*/
	215
7e7742ee	216	de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, NULL, &qbh);
1da177e4 LT	217
	218	/*
	219	* This is not really a bailout, just means file not found.
	220	*/
	221
	222	if (!de) goto end;
	223
	224	/*
	225	* Get inode number, what we're after.
	226	*/
	227
0b69760b	228	ino = le32_to_cpu(de->fnode);
1da177e4 LT	229
	230	/*
	231	* Go find or make an inode.
	232	*/
	233
	234	result = iget_locked(dir->i_sb, ino);
	235	if (!result) {
	236	hpfs_error(dir->i_sb, "hpfs_lookup: can't get inode");
	237	goto bail1;
	238	}
	239	if (result->i_state & I_NEW) {
	240	hpfs_init_inode(result);
	241	if (de->directory)
	242	hpfs_read_inode(result);
0b69760b	243	else if (le32_to_cpu(de->ea_size) && hpfs_sb(dir->i_sb)->sb_eas)
1da177e4 LT	244	hpfs_read_inode(result);
	245	else {
	246	result->i_mode \|= S_IFREG;
	247	result->i_mode &= ~0111;
	248	result->i_op = &hpfs_file_iops;
	249	result->i_fop = &hpfs_file_ops;
bfe86848	250	set_nlink(result, 1);
1da177e4 LT	251	}
	252	unlock_new_inode(result);
	253	}
	254	hpfs_result = hpfs_i(result);
	255	if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino;
	256
1da177e4 LT	257	if (de->has_acl \|\| de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
	258	hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
	259	goto bail1;
	260	}
	261
	262	/*
	263	* Fill in the info from the directory if this is a newly created
	264	* inode.
	265	*/
	266
	267	if (!result->i_ctime.tv_sec) {
0b69760b	268	if (!(result->i_ctime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->creation_date))))
1da177e4 LT	269	result->i_ctime.tv_sec = 1;
1da177e4 LT	270	result->i_ctime.tv_nsec = 0;
0b69760b	271	result->i_mtime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->write_date));
1da177e4	272	result->i_mtime.tv_nsec = 0;
0b69760b	273	result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->read_date));
1da177e4	274	result->i_atime.tv_nsec = 0;
0b69760b	275	hpfs_result->i_ea_size = le32_to_cpu(de->ea_size);
1da177e4 LT	276	if (!hpfs_result->i_ea_mode && de->read_only)
	277	result->i_mode &= ~0222;
	278	if (!de->directory) {
	279	if (result->i_size == -1) {
0b69760b	280	result->i_size = le32_to_cpu(de->file_size);
1da177e4 LT	281	result->i_data.a_ops = &hpfs_aops;
	282	hpfs_i(result)->mmu_private = result->i_size;
	283	/*
	284	* i_blocks should count the fnode and any anodes.
	285	* We count 1 for the fnode and don't bother about
	286	* anodes -- the disk heads are on the directory band
	287	* and we want them to stay there.
	288	*/
	289	result->i_blocks = 1 + ((result->i_size + 511) >> 9);
	290	}
	291	}
	292	}
	293
	294	hpfs_brelse4(&qbh);
	295
	296	/*
	297	* Made it.
	298	*/
	299
	300	end:
	301	end_add:
9a311b96	302	hpfs_unlock(dir->i_sb);
1da177e4 LT	303	d_add(dentry, result);
	304	return NULL;
	305
	306	/*
	307	* Didn't.
	308	*/
	309	bail1:
	310
	311	hpfs_brelse4(&qbh);
	312
	313	/bail:/
	314
9a311b96	315	hpfs_unlock(dir->i_sb);
1da177e4 LT	316	return ERR_PTR(-ENOENT);
	317	}
	318
4b6f5d20	319	const struct file_operations hpfs_dir_ops =
1da177e4 LT	320	{
	321	.llseek = hpfs_dir_lseek,
	322	.read = generic_read_dir,
	323	.readdir = hpfs_readdir,
	324	.release = hpfs_dir_release,
	325	.fsync = hpfs_file_fsync,
	326	};