[mirror_ubuntu-artful-kernel.git] / fs / hpfs / dir.c

/*
 *  linux/fs/hpfs/dir.c
 *
 *  Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 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 = file_inode(filp);
	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;

	inode_lock(i);
	hpfs_lock(s);

	/*pr_info("dir lseek\n");*/
	if (new_off == 0 || new_off == 1 || new_off == 11 || new_off == 12 || new_off == 13) goto ok;
	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;
	}
	if (unlikely(hpfs_add_pos(i, &filp->f_pos) < 0)) {
		hpfs_unlock(s);
		inode_unlock(i);
		return -ENOMEM;
	}
ok:
	filp->f_pos = new_off;
	hpfs_unlock(s);
	inode_unlock(i);
	return new_off;
fail:
	/*pr_warn("illegal lseek: %016llx\n", new_off);*/
	hpfs_unlock(s);
	inode_unlock(i);
	return -ESPIPE;
}

static int hpfs_readdir(struct file *file, struct dir_context *ctx)
{
	struct inode *inode = file_inode(file);
	struct hpfs_inode_info *hpfs_inode = hpfs_i(inode);
	struct quad_buffer_head qbh;
	struct hpfs_dirent *de;
	int lc;
	loff_t next_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 (ctx->pos == 12) { /* diff -r requires this (note, that diff -r */
		ctx->pos = 13; /* also fails on msdos filesystem in 2.0) */
		goto out;
	}
	if (ctx->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, ctx->pos, &c1, &c2, "hpfs_readdir")) {
				ret = -EFSERROR;
				goto out;
			}
		if (ctx->pos == 12)
			goto out;
		if (ctx->pos == 3 || ctx->pos == 4 || ctx->pos == 5) {
			pr_err("pos==%d\n", (int)ctx->pos);
			goto out;
		}
		if (ctx->pos == 0) {
			if (!dir_emit_dot(file, ctx))
				goto out;
			ctx->pos = 11;
		}
		if (ctx->pos == 11) {
			if (!dir_emit(ctx, "..", 2, hpfs_inode->i_parent_dir, DT_DIR))
				goto out;
			ctx->pos = 1;
		}
		if (ctx->pos == 1) {
			ret = hpfs_add_pos(inode, &file->f_pos);
			if (unlikely(ret < 0))
				goto out;
			ctx->pos = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, hpfs_inode->i_dno) << 4) + 1;
			file->f_version = inode->i_version;
		}
		next_pos = ctx->pos;
		if (!(de = map_pos_dirent(inode, &next_pos, &qbh))) {
			ctx->pos = next_pos;
			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", (unsigned long)ctx->pos);
				if (de->last && (de->namelen != 1 || de ->name[0] != 255))
					hpfs_error(inode->i_sb, "hpfs_readdir: bad \\377 entry; pos = %08lx", (unsigned long)ctx->pos);
			}
			hpfs_brelse4(&qbh);
			ctx->pos = next_pos;
			goto again;
		}
		tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3);
		if (!dir_emit(ctx, tempname, de->namelen, le32_to_cpu(de->fnode), DT_UNKNOWN)) {
			if (tempname != de->name) kfree(tempname);
			hpfs_brelse4(&qbh);
			goto out;
		}
		ctx->pos = next_pos;
		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,
	.iterate_shared	= hpfs_readdir,
	.release	= hpfs_dir_release,
	.fsync		= hpfs_file_fsync,
	.unlocked_ioctl	= hpfs_ioctl,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/fs/hpfs/dir.c
	3	*
	4	* Mikulas Patocka (mikulas@artax.karlin.mff.cuni.cz), 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;
496ad9aa	28	struct inode *i = file_inode(filp);
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
5955102c	36	inode_lock(i);
9a311b96	37	hpfs_lock(s);
1da177e4	38
b7cb1ce2	39	/pr_info("dir lseek\n");/
1da177e4	40	if (new_off == 0 \|\| new_off == 1 \|\| new_off == 11 \|\| new_off == 12 \|\| new_off == 13) goto ok;
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	}
e82c3147 AV	47	if (unlikely(hpfs_add_pos(i, &filp->f_pos) < 0)) {
	48	hpfs_unlock(s);
	49	inode_unlock(i);
	50	return -ENOMEM;
	51	}
1da177e4	52	ok:
31abdab9	53	filp->f_pos = new_off;
9a311b96	54	hpfs_unlock(s);
5955102c	55	inode_unlock(i);
31abdab9 AV	56	return new_off;
31abdab9 AV	57	fail:
b7cb1ce2	58	/pr_warn("illegal lseek: %016llx\n", new_off);/
9a311b96	59	hpfs_unlock(s);
5955102c	60	inode_unlock(i);
1da177e4 LT	61	return -ESPIPE;
	62	}
	63
568f8f5e	64	static int hpfs_readdir(struct file file, struct dir_context ctx)
1da177e4	65	{
568f8f5e	66	struct inode *inode = file_inode(file);
1da177e4 LT	67	struct hpfs_inode_info *hpfs_inode = hpfs_i(inode);
	68	struct quad_buffer_head qbh;
	69	struct hpfs_dirent *de;
	70	int lc;
568f8f5e	71	loff_t next_pos;
7e7742ee	72	unsigned char *tempname;
1da177e4 LT	73	int c1, c2 = 0;
	74	int ret = 0;
	75
9a311b96	76	hpfs_lock(inode->i_sb);
1da177e4 LT	77
	78	if (hpfs_sb(inode->i_sb)->sb_chk) {
	79	if (hpfs_chk_sectors(inode->i_sb, inode->i_ino, 1, "dir_fnode")) {
	80	ret = -EFSERROR;
	81	goto out;
	82	}
	83	if (hpfs_chk_sectors(inode->i_sb, hpfs_inode->i_dno, 4, "dir_dnode")) {
	84	ret = -EFSERROR;
	85	goto out;
	86	}
	87	}
	88	if (hpfs_sb(inode->i_sb)->sb_chk >= 2) {
	89	struct buffer_head *bh;
	90	struct fnode *fno;
	91	int e = 0;
	92	if (!(fno = hpfs_map_fnode(inode->i_sb, inode->i_ino, &bh))) {
	93	ret = -EIOERROR;
	94	goto out;
	95	}
c4c99543	96	if (!fnode_is_dir(fno)) {
1da177e4	97	e = 1;
18debbbc RD	98	hpfs_error(inode->i_sb, "not a directory, fnode %08lx",
18debbbc RD	99	(unsigned long)inode->i_ino);
1da177e4	100	}
0b69760b	101	if (hpfs_inode->i_dno != le32_to_cpu(fno->u.external[0].disk_secno)) {
1da177e4	102	e = 1;
0b69760b	103	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	104	}
	105	brelse(bh);
	106	if (e) {
	107	ret = -EFSERROR;
	108	goto out;
	109	}
	110	}
	111	lc = hpfs_sb(inode->i_sb)->sb_lowercase;
568f8f5e AV	112	if (ctx->pos == 12) { /* diff -r requires this (note, that diff -r */
568f8f5e AV	113	ctx->pos = 13; /* also fails on msdos filesystem in 2.0) */
1da177e4 LT	114	goto out;
1da177e4 LT	115	}
568f8f5e	116	if (ctx->pos == 13) {
1da177e4 LT	117	ret = -ENOENT;
	118	goto out;
	119	}
	120
	121	while (1) {
	122	again:
	123	/* This won't work when cycle is longer than number of dirents
	124	accepted by filldir, but what can I do?
	125	maybe killall -9 ls helps */
	126	if (hpfs_sb(inode->i_sb)->sb_chk)
568f8f5e	127	if (hpfs_stop_cycles(inode->i_sb, ctx->pos, &c1, &c2, "hpfs_readdir")) {
1da177e4 LT	128	ret = -EFSERROR;
	129	goto out;
	130	}
568f8f5e	131	if (ctx->pos == 12)
1da177e4	132	goto out;
568f8f5e	133	if (ctx->pos == 3 \|\| ctx->pos == 4 \|\| ctx->pos == 5) {
a19189e5	134	pr_err("pos==%d\n", (int)ctx->pos);
1da177e4 LT	135	goto out;
1da177e4 LT	136	}
568f8f5e AV	137	if (ctx->pos == 0) {
568f8f5e AV	138	if (!dir_emit_dot(file, ctx))
1da177e4	139	goto out;
568f8f5e	140	ctx->pos = 11;
1da177e4	141	}
568f8f5e AV	142	if (ctx->pos == 11) {
568f8f5e AV	143	if (!dir_emit(ctx, "..", 2, hpfs_inode->i_parent_dir, DT_DIR))
1da177e4	144	goto out;
568f8f5e	145	ctx->pos = 1;
1da177e4	146	}
568f8f5e	147	if (ctx->pos == 1) {
e82c3147 AV	148	ret = hpfs_add_pos(inode, &file->f_pos);
	149	if (unlikely(ret < 0))
	150	goto out;
568f8f5e	151	ctx->pos = ((loff_t) hpfs_de_as_down_as_possible(inode->i_sb, hpfs_inode->i_dno) << 4) + 1;
568f8f5e	152	file->f_version = inode->i_version;
1da177e4	153	}
568f8f5e AV	154	next_pos = ctx->pos;
	155	if (!(de = map_pos_dirent(inode, &next_pos, &qbh))) {
	156	ctx->pos = next_pos;
1da177e4 LT	157	ret = -EIOERROR;
	158	goto out;
	159	}
	160	if (de->first \|\| de->last) {
	161	if (hpfs_sb(inode->i_sb)->sb_chk) {
18debbbc RD	162	if (de->first && !de->last && (de->namelen != 2
18debbbc RD	163	\|\| de ->name[0] != 1 \|\| de->name[1] != 1))
568f8f5e	164	hpfs_error(inode->i_sb, "hpfs_readdir: bad ^A^A entry; pos = %08lx", (unsigned long)ctx->pos);
18debbbc	165	if (de->last && (de->namelen != 1 \|\| de ->name[0] != 255))
568f8f5e	166	hpfs_error(inode->i_sb, "hpfs_readdir: bad \\377 entry; pos = %08lx", (unsigned long)ctx->pos);
1da177e4 LT	167	}
1da177e4 LT	168	hpfs_brelse4(&qbh);
568f8f5e	169	ctx->pos = next_pos;
1da177e4 LT	170	goto again;
	171	}
	172	tempname = hpfs_translate_name(inode->i_sb, de->name, de->namelen, lc, de->not_8x3);
568f8f5e	173	if (!dir_emit(ctx, tempname, de->namelen, le32_to_cpu(de->fnode), DT_UNKNOWN)) {
7e7742ee	174	if (tempname != de->name) kfree(tempname);
1da177e4 LT	175	hpfs_brelse4(&qbh);
	176	goto out;
	177	}
568f8f5e	178	ctx->pos = next_pos;
7e7742ee	179	if (tempname != de->name) kfree(tempname);
1da177e4 LT	180	hpfs_brelse4(&qbh);
	181	}
	182	out:
9a311b96	183	hpfs_unlock(inode->i_sb);
1da177e4 LT	184	return ret;
	185	}
	186
	187	/*
	188	* lookup. Search the specified directory for the specified name, set
	189	* *result to the corresponding inode.
	190	*
	191	* lookup uses the inode number to tell read_inode whether it is reading
	192	* the inode of a directory or a file -- file ino's are odd, directory
	193	* ino's are even. read_inode avoids i/o for file inodes; everything
	194	* needed is up here in the directory. (And file fnodes are out in
	195	* the boondocks.)
	196	*
	197	* - M.P.: this is over, sometimes we've got to read file's fnode for eas
	198	* inode numbers are just fnode sector numbers; iget lock is used
	199	* to tell read_inode to read fnode or not.
	200	*/
	201
00cd8dd3	202	struct dentry hpfs_lookup(struct inode dir, struct dentry *dentry, unsigned int flags)
1da177e4	203	{
7e7742ee	204	const unsigned char *name = dentry->d_name.name;
1da177e4 LT	205	unsigned len = dentry->d_name.len;
	206	struct quad_buffer_head qbh;
	207	struct hpfs_dirent *de;
	208	ino_t ino;
	209	int err;
	210	struct inode *result = NULL;
	211	struct hpfs_inode_info *hpfs_result;
	212
9a311b96	213	hpfs_lock(dir->i_sb);
7e7742ee	214	if ((err = hpfs_chk_name(name, &len))) {
1da177e4	215	if (err == -ENAMETOOLONG) {
9a311b96	216	hpfs_unlock(dir->i_sb);
1da177e4 LT	217	return ERR_PTR(-ENAMETOOLONG);
	218	}
	219	goto end_add;
	220	}
	221
	222	/*
	223	* '.' and '..' will never be passed here.
	224	*/
	225
7e7742ee	226	de = map_dirent(dir, hpfs_i(dir)->i_dno, name, len, NULL, &qbh);
1da177e4 LT	227
	228	/*
	229	* This is not really a bailout, just means file not found.
	230	*/
	231
	232	if (!de) goto end;
	233
	234	/*
	235	* Get inode number, what we're after.
	236	*/
	237
0b69760b	238	ino = le32_to_cpu(de->fnode);
1da177e4 LT	239
	240	/*
	241	* Go find or make an inode.
	242	*/
	243
	244	result = iget_locked(dir->i_sb, ino);
	245	if (!result) {
	246	hpfs_error(dir->i_sb, "hpfs_lookup: can't get inode");
	247	goto bail1;
	248	}
	249	if (result->i_state & I_NEW) {
	250	hpfs_init_inode(result);
	251	if (de->directory)
	252	hpfs_read_inode(result);
0b69760b	253	else if (le32_to_cpu(de->ea_size) && hpfs_sb(dir->i_sb)->sb_eas)
1da177e4 LT	254	hpfs_read_inode(result);
	255	else {
	256	result->i_mode \|= S_IFREG;
	257	result->i_mode &= ~0111;
	258	result->i_op = &hpfs_file_iops;
	259	result->i_fop = &hpfs_file_ops;
bfe86848	260	set_nlink(result, 1);
1da177e4 LT	261	}
	262	unlock_new_inode(result);
	263	}
	264	hpfs_result = hpfs_i(result);
	265	if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino;
	266
1da177e4 LT	267	if (de->has_acl \|\| de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
	268	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");
	269	goto bail1;
	270	}
	271
	272	/*
	273	* Fill in the info from the directory if this is a newly created
	274	* inode.
	275	*/
	276
	277	if (!result->i_ctime.tv_sec) {
0b69760b	278	if (!(result->i_ctime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->creation_date))))
1da177e4 LT	279	result->i_ctime.tv_sec = 1;
1da177e4 LT	280	result->i_ctime.tv_nsec = 0;
0b69760b	281	result->i_mtime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->write_date));
1da177e4	282	result->i_mtime.tv_nsec = 0;
0b69760b	283	result->i_atime.tv_sec = local_to_gmt(dir->i_sb, le32_to_cpu(de->read_date));
1da177e4	284	result->i_atime.tv_nsec = 0;
0b69760b	285	hpfs_result->i_ea_size = le32_to_cpu(de->ea_size);
1da177e4 LT	286	if (!hpfs_result->i_ea_mode && de->read_only)
	287	result->i_mode &= ~0222;
	288	if (!de->directory) {
	289	if (result->i_size == -1) {
0b69760b	290	result->i_size = le32_to_cpu(de->file_size);
1da177e4 LT	291	result->i_data.a_ops = &hpfs_aops;
	292	hpfs_i(result)->mmu_private = result->i_size;
	293	/*
	294	* i_blocks should count the fnode and any anodes.
	295	* We count 1 for the fnode and don't bother about
	296	* anodes -- the disk heads are on the directory band
	297	* and we want them to stay there.
	298	*/
	299	result->i_blocks = 1 + ((result->i_size + 511) >> 9);
	300	}
	301	}
	302	}
	303
	304	hpfs_brelse4(&qbh);
	305
	306	/*
	307	* Made it.
	308	*/
	309
	310	end:
	311	end_add:
9a311b96	312	hpfs_unlock(dir->i_sb);
1da177e4 LT	313	d_add(dentry, result);
	314	return NULL;
	315
	316	/*
	317	* Didn't.
	318	*/
	319	bail1:
	320
	321	hpfs_brelse4(&qbh);
	322
	323	/bail:/
	324
9a311b96	325	hpfs_unlock(dir->i_sb);
1da177e4 LT	326	return ERR_PTR(-ENOENT);
	327	}
	328
4b6f5d20	329	const struct file_operations hpfs_dir_ops =
1da177e4 LT	330	{
	331	.llseek = hpfs_dir_lseek,
	332	.read = generic_read_dir,
7d674b31	333	.iterate_shared = hpfs_readdir,
1da177e4 LT	334	.release = hpfs_dir_release,
1da177e4 LT	335	.fsync = hpfs_file_fsync,
a27b5b97	336	.unlocked_ioctl = hpfs_ioctl,
1da177e4	337	};