[deliverable/linux.git] / fs / freevxfs / vxfs_inode.c

/*
 * Copyright (c) 2000-2001 Christoph Hellwig.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL").
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

/*
 * Veritas filesystem driver - inode routines.
 */
#include <linux/fs.h>
#include <linux/buffer_head.h>
#include <linux/pagemap.h>
#include <linux/kernel.h>
#include <linux/slab.h>

#include "vxfs.h"
#include "vxfs_inode.h"
#include "vxfs_extern.h"


extern const struct address_space_operations vxfs_aops;
extern const struct address_space_operations vxfs_immed_aops;

extern struct inode_operations vxfs_immed_symlink_iops;

kmem_cache_t		*vxfs_inode_cachep;


#ifdef DIAGNOSTIC
/*
 * Dump inode contents (partially).
 */
void
vxfs_dumpi(struct vxfs_inode_info *vip, ino_t ino)
{
	printk(KERN_DEBUG "\n\n");
	if (ino)
		printk(KERN_DEBUG "dumping vxfs inode %ld\n", ino);
	else
		printk(KERN_DEBUG "dumping unknown vxfs inode\n");

	printk(KERN_DEBUG "---------------------------\n");
	printk(KERN_DEBUG "mode is %x\n", vip->vii_mode);
	printk(KERN_DEBUG "nlink:%u, uid:%u, gid:%u\n",
			vip->vii_nlink, vip->vii_uid, vip->vii_gid);
	printk(KERN_DEBUG "size:%Lx, blocks:%u\n",
			vip->vii_size, vip->vii_blocks);
	printk(KERN_DEBUG "orgtype:%u\n", vip->vii_orgtype);
}
#endif


/**
 * vxfs_blkiget - find inode based on extent #
 * @sbp:	superblock of the filesystem we search in
 * @extent:	number of the extent to search
 * @ino:	inode number to search
 *
 * Description:
 *  vxfs_blkiget searches inode @ino in the filesystem described by
 *  @sbp in the extent @extent.
 *  Returns the matching VxFS inode on success, else a NULL pointer.
 *
 * NOTE:
 *  While __vxfs_iget uses the pagecache vxfs_blkiget uses the
 *  buffercache.  This function should not be used outside the
 *  read_super() method, otherwise the data may be incoherent.
 */
struct vxfs_inode_info *
vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino)
{
	struct buffer_head		*bp;
	u_long				block, offset;

	block = extent + ((ino * VXFS_ISIZE) / sbp->s_blocksize);
	offset = ((ino % (sbp->s_blocksize / VXFS_ISIZE)) * VXFS_ISIZE);
	bp = sb_bread(sbp, block);

	if (buffer_mapped(bp)) {
		struct vxfs_inode_info	*vip;
		struct vxfs_dinode	*dip;

		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
			goto fail;
		dip = (struct vxfs_dinode *)(bp->b_data + offset);
		memcpy(vip, dip, sizeof(*vip));
#ifdef DIAGNOSTIC
		vxfs_dumpi(vip, ino);
#endif
		brelse(bp);
		return (vip);
	}

fail:
	printk(KERN_WARNING "vxfs: unable to read block %ld\n", block);
	brelse(bp);
	return NULL;
}

/**
 * __vxfs_iget - generic find inode facility
 * @sbp:		VFS superblock
 * @ino:		inode number
 * @ilistp:		inode list
 *
 * Description:
 *  Search the for inode number @ino in the filesystem
 *  described by @sbp.  Use the specified inode table (@ilistp).
 *  Returns the matching VxFS inode on success, else a NULL pointer.
 */
static struct vxfs_inode_info *
__vxfs_iget(ino_t ino, struct inode *ilistp)
{
	struct page			*pp;
	u_long				offset;

	offset = (ino % (PAGE_SIZE / VXFS_ISIZE)) * VXFS_ISIZE;
	pp = vxfs_get_page(ilistp->i_mapping, ino * VXFS_ISIZE / PAGE_SIZE);

	if (!IS_ERR(pp)) {
		struct vxfs_inode_info	*vip;
		struct vxfs_dinode	*dip;
		caddr_t			kaddr = (char *)page_address(pp);

		if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
			goto fail;
		dip = (struct vxfs_dinode *)(kaddr + offset);
		memcpy(vip, dip, sizeof(*vip));
#ifdef DIAGNOSTIC
		vxfs_dumpi(vip, ino);
#endif
		vxfs_put_page(pp);
		return (vip);
	}

	printk(KERN_WARNING "vxfs: error on page %p\n", pp);
	return NULL;

fail:
	printk(KERN_WARNING "vxfs: unable to read inode %ld\n", (unsigned long)ino);
	vxfs_put_page(pp);
	return NULL;
}

/**
 * vxfs_stiget - find inode using the structural inode list
 * @sbp:	VFS superblock
 * @ino:	inode #
 *
 * Description:
 *  Find inode @ino in the filesystem described by @sbp using
 *  the structural inode list.
 *  Returns the matching VxFS inode on success, else a NULL pointer.
 */
struct vxfs_inode_info *
vxfs_stiget(struct super_block *sbp, ino_t ino)
{
        return __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
}

/**
 * vxfs_transmod - mode for a VxFS inode
 * @vip:	VxFS inode
 *
 * Description:
 *  vxfs_transmod returns a Linux mode_t for a given
 *  VxFS inode structure.
 */
static __inline__ mode_t
vxfs_transmod(struct vxfs_inode_info *vip)
{
	mode_t			ret = vip->vii_mode & ~VXFS_TYPE_MASK;

	if (VXFS_ISFIFO(vip))
		ret |= S_IFIFO;
	if (VXFS_ISCHR(vip))
		ret |= S_IFCHR;
	if (VXFS_ISDIR(vip))
		ret |= S_IFDIR;
	if (VXFS_ISBLK(vip))
		ret |= S_IFBLK;
	if (VXFS_ISLNK(vip))
		ret |= S_IFLNK;
	if (VXFS_ISREG(vip))
		ret |= S_IFREG;
	if (VXFS_ISSOC(vip))
		ret |= S_IFSOCK;

	return (ret);
}

/**
 * vxfs_iinit- helper to fill inode fields
 * @ip:		VFS inode
 * @vip:	VxFS inode
 *
 * Description:
 *  vxfs_instino is a helper function to fill in all relevant
 *  fields in @ip from @vip.
 */
static void
vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip)
{

	ip->i_mode = vxfs_transmod(vip);
	ip->i_uid = (uid_t)vip->vii_uid;
	ip->i_gid = (gid_t)vip->vii_gid;

	ip->i_nlink = vip->vii_nlink;
	ip->i_size = vip->vii_size;

	ip->i_atime.tv_sec = vip->vii_atime;
	ip->i_ctime.tv_sec = vip->vii_ctime;
	ip->i_mtime.tv_sec = vip->vii_mtime;
	ip->i_atime.tv_nsec = 0;
	ip->i_ctime.tv_nsec = 0;
	ip->i_mtime.tv_nsec = 0;

	ip->i_blksize = PAGE_SIZE;
	ip->i_blocks = vip->vii_blocks;
	ip->i_generation = vip->vii_gen;

	ip->u.generic_ip = (void *)vip;
	
}

/**
 * vxfs_get_fake_inode - get fake inode structure
 * @sbp:		filesystem superblock
 * @vip:		fspriv inode
 *
 * Description:
 *  vxfs_fake_inode gets a fake inode (not in the inode hash) for a
 *  superblock, vxfs_inode pair.
 *  Returns the filled VFS inode.
 */
struct inode *
vxfs_get_fake_inode(struct super_block *sbp, struct vxfs_inode_info *vip)
{
	struct inode			*ip = NULL;

	if ((ip = new_inode(sbp))) {
		vxfs_iinit(ip, vip);
		ip->i_mapping->a_ops = &vxfs_aops;
	}
	return (ip);
}

/**
 * vxfs_put_fake_inode - free faked inode
 * *ip:			VFS inode
 *
 * Description:
 *  vxfs_put_fake_inode frees all data asssociated with @ip.
 */
void
vxfs_put_fake_inode(struct inode *ip)
{
	iput(ip);
}

/**
 * vxfs_read_inode - fill in inode information
 * @ip:		inode pointer to fill
 *
 * Description:
 *  vxfs_read_inode reads the disk inode for @ip and fills
 *  in all relevant fields in @ip.
 */
void
vxfs_read_inode(struct inode *ip)
{
	struct super_block		*sbp = ip->i_sb;
	struct vxfs_inode_info		*vip;
	const struct address_space_operations	*aops;
	ino_t				ino = ip->i_ino;

	if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
		return;

	vxfs_iinit(ip, vip);

	if (VXFS_ISIMMED(vip))
		aops = &vxfs_immed_aops;
	else
		aops = &vxfs_aops;

	if (S_ISREG(ip->i_mode)) {
		ip->i_fop = &generic_ro_fops;
		ip->i_mapping->a_ops = aops;
	} else if (S_ISDIR(ip->i_mode)) {
		ip->i_op = &vxfs_dir_inode_ops;
		ip->i_fop = &vxfs_dir_operations;
		ip->i_mapping->a_ops = aops;
	} else if (S_ISLNK(ip->i_mode)) {
		if (!VXFS_ISIMMED(vip)) {
			ip->i_op = &page_symlink_inode_operations;
			ip->i_mapping->a_ops = &vxfs_aops;
		} else
			ip->i_op = &vxfs_immed_symlink_iops;
	} else
		init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));

	return;
}

/**
 * vxfs_clear_inode - remove inode from main memory
 * @ip:		inode to discard.
 *
 * Description:
 *  vxfs_clear_inode() is called on the final iput and frees the private
 *  inode area.
 */
void
vxfs_clear_inode(struct inode *ip)
{
	kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) 2000-2001 Christoph Hellwig.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions, and the following disclaimer,
	10	* without modification.
	11	* 2. The name of the author may not be used to endorse or promote products
	12	* derived from this software without specific prior written permission.
	13	*
	14	* Alternatively, this software may be distributed under the terms of the
	15	* GNU General Public License ("GPL").
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	18	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	19	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	20	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
	21	* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	22	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	23	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	24	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	25	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	26	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	27	* SUCH DAMAGE.
	28	*/
	29
	30	/*
	31	* Veritas filesystem driver - inode routines.
	32	*/
	33	#include <linux/fs.h>
	34	#include <linux/buffer_head.h>
	35	#include <linux/pagemap.h>
	36	#include <linux/kernel.h>
	37	#include <linux/slab.h>
	38
	39	#include "vxfs.h"
	40	#include "vxfs_inode.h"
	41	#include "vxfs_extern.h"
	42
	43
f5e54d6e CH	44	extern const struct address_space_operations vxfs_aops;
f5e54d6e CH	45	extern const struct address_space_operations vxfs_immed_aops;
1da177e4 LT	46
	47	extern struct inode_operations vxfs_immed_symlink_iops;
	48
1da177e4 LT	49	kmem_cache_t *vxfs_inode_cachep;
	50
	51
	52	#ifdef DIAGNOSTIC
	53	/*
	54	* Dump inode contents (partially).
	55	*/
	56	void
	57	vxfs_dumpi(struct vxfs_inode_info *vip, ino_t ino)
	58	{
	59	printk(KERN_DEBUG "\n\n");
	60	if (ino)
	61	printk(KERN_DEBUG "dumping vxfs inode %ld\n", ino);
	62	else
	63	printk(KERN_DEBUG "dumping unknown vxfs inode\n");
	64
	65	printk(KERN_DEBUG "---------------------------\n");
	66	printk(KERN_DEBUG "mode is %x\n", vip->vii_mode);
	67	printk(KERN_DEBUG "nlink:%u, uid:%u, gid:%u\n",
	68	vip->vii_nlink, vip->vii_uid, vip->vii_gid);
	69	printk(KERN_DEBUG "size:%Lx, blocks:%u\n",
	70	vip->vii_size, vip->vii_blocks);
	71	printk(KERN_DEBUG "orgtype:%u\n", vip->vii_orgtype);
	72	}
	73	#endif
	74
	75
	76	/**
	77	* vxfs_blkiget - find inode based on extent #
	78	* @sbp: superblock of the filesystem we search in
	79	* @extent: number of the extent to search
	80	* @ino: inode number to search
	81	*
	82	* Description:
	83	* vxfs_blkiget searches inode @ino in the filesystem described by
	84	* @sbp in the extent @extent.
	85	* Returns the matching VxFS inode on success, else a NULL pointer.
	86	*
	87	* NOTE:
	88	* While __vxfs_iget uses the pagecache vxfs_blkiget uses the
	89	* buffercache. This function should not be used outside the
	90	* read_super() method, otherwise the data may be incoherent.
	91	*/
	92	struct vxfs_inode_info *
	93	vxfs_blkiget(struct super_block *sbp, u_long extent, ino_t ino)
	94	{
	95	struct buffer_head *bp;
	96	u_long block, offset;
	97
	98	block = extent + ((ino * VXFS_ISIZE) / sbp->s_blocksize);
	99	offset = ((ino % (sbp->s_blocksize / VXFS_ISIZE)) * VXFS_ISIZE);
	100	bp = sb_bread(sbp, block);
	101
	102	if (buffer_mapped(bp)) {
	103	struct vxfs_inode_info *vip;
	104	struct vxfs_dinode *dip;
	105
	106	if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
	107	goto fail;
	108	dip = (struct vxfs_dinode *)(bp->b_data + offset);
	109	memcpy(vip, dip, sizeof(*vip));
	110	#ifdef DIAGNOSTIC
	111	vxfs_dumpi(vip, ino);
	112	#endif
113	brelse(bp);
114	return (vip);
115	}
116
117	fail:
118	printk(KERN_WARNING "vxfs: unable to read block %ld\n", block);
119	brelse(bp);
120	return NULL;
121	}
122
123	/**
124	* __vxfs_iget - generic find inode facility
125	* @sbp: VFS superblock
126	* @ino: inode number
127	* @ilistp: inode list
128	*
129	* Description:
130	* Search the for inode number @ino in the filesystem
131	* described by @sbp. Use the specified inode table (@ilistp).
132	* Returns the matching VxFS inode on success, else a NULL pointer.
133	*/
134	static struct vxfs_inode_info *
135	__vxfs_iget(ino_t ino, struct inode *ilistp)
136	{
137	struct page *pp;
138	u_long offset;
139
140	offset = (ino % (PAGE_SIZE / VXFS_ISIZE)) * VXFS_ISIZE;
141	pp = vxfs_get_page(ilistp->i_mapping, ino * VXFS_ISIZE / PAGE_SIZE);
142
143	if (!IS_ERR(pp)) {
144	struct vxfs_inode_info *vip;
145	struct vxfs_dinode *dip;
146	caddr_t kaddr = (char *)page_address(pp);
147
148	if (!(vip = kmem_cache_alloc(vxfs_inode_cachep, SLAB_KERNEL)))
149	goto fail;
150	dip = (struct vxfs_dinode *)(kaddr + offset);
151	memcpy(vip, dip, sizeof(*vip));
152	#ifdef DIAGNOSTIC
153	vxfs_dumpi(vip, ino);
154	#endif
155	vxfs_put_page(pp);
156	return (vip);
157	}
158
159	printk(KERN_WARNING "vxfs: error on page %p\n", pp);
160	return NULL;
161
162	fail:
163	printk(KERN_WARNING "vxfs: unable to read inode %ld\n", (unsigned long)ino);
164	vxfs_put_page(pp);
165	return NULL;
166	}
167
168	/**
169	* vxfs_stiget - find inode using the structural inode list
170	* @sbp: VFS superblock
171	* @ino: inode #
172	*
173	* Description:
174	* Find inode @ino in the filesystem described by @sbp using
175	* the structural inode list.
176	* Returns the matching VxFS inode on success, else a NULL pointer.
177	*/
178	struct vxfs_inode_info *
179	vxfs_stiget(struct super_block *sbp, ino_t ino)
180	{
181	return __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
182	}
183
184	/**
185	* vxfs_transmod - mode for a VxFS inode
186	* @vip: VxFS inode
187	*
188	* Description:
189	* vxfs_transmod returns a Linux mode_t for a given
190	* VxFS inode structure.
191	*/
192	static __inline__ mode_t
193	vxfs_transmod(struct vxfs_inode_info *vip)
194	{
195	mode_t ret = vip->vii_mode & ~VXFS_TYPE_MASK;
196
197	if (VXFS_ISFIFO(vip))
198	ret \|= S_IFIFO;
199	if (VXFS_ISCHR(vip))
200	ret \|= S_IFCHR;
201	if (VXFS_ISDIR(vip))
202	ret \|= S_IFDIR;
203	if (VXFS_ISBLK(vip))
204	ret \|= S_IFBLK;
205	if (VXFS_ISLNK(vip))
206	ret \|= S_IFLNK;
207	if (VXFS_ISREG(vip))
208	ret \|= S_IFREG;
209	if (VXFS_ISSOC(vip))
210	ret \|= S_IFSOCK;
211
212	return (ret);
213	}
214
215	/**
216	* vxfs_iinit- helper to fill inode fields
217	* @ip: VFS inode
218	* @vip: VxFS inode
219	*
220	* Description:
221	* vxfs_instino is a helper function to fill in all relevant
222	* fields in @ip from @vip.
223	*/
224	static void
225	vxfs_iinit(struct inode ip, struct vxfs_inode_info vip)
226	{
227
228	ip->i_mode = vxfs_transmod(vip);
229	ip->i_uid = (uid_t)vip->vii_uid;
230	ip->i_gid = (gid_t)vip->vii_gid;
231
232	ip->i_nlink = vip->vii_nlink;
233	ip->i_size = vip->vii_size;
234
235	ip->i_atime.tv_sec = vip->vii_atime;
236	ip->i_ctime.tv_sec = vip->vii_ctime;
237	ip->i_mtime.tv_sec = vip->vii_mtime;
238	ip->i_atime.tv_nsec = 0;
239	ip->i_ctime.tv_nsec = 0;
240	ip->i_mtime.tv_nsec = 0;
241
242	ip->i_blksize = PAGE_SIZE;
243	ip->i_blocks = vip->vii_blocks;
244	ip->i_generation = vip->vii_gen;
245
246	ip->u.generic_ip = (void *)vip;
247
248	}
249
250	/**
251	* vxfs_get_fake_inode - get fake inode structure
252	* @sbp: filesystem superblock
253	* @vip: fspriv inode
254	*
255	* Description:
256	* vxfs_fake_inode gets a fake inode (not in the inode hash) for a
257	* superblock, vxfs_inode pair.
258	* Returns the filled VFS inode.
259	*/
260	struct inode *
261	vxfs_get_fake_inode(struct super_block sbp, struct vxfs_inode_info vip)
262	{
263	struct inode *ip = NULL;
264
265	if ((ip = new_inode(sbp))) {
266	vxfs_iinit(ip, vip);
267	ip->i_mapping->a_ops = &vxfs_aops;
268	}
269	return (ip);
270	}
271
272	/**
273	* vxfs_put_fake_inode - free faked inode
274	* *ip: VFS inode
275	*
276	* Description:
277	* vxfs_put_fake_inode frees all data asssociated with @ip.
278	*/
279	void
280	vxfs_put_fake_inode(struct inode *ip)
281	{
282	iput(ip);
283	}
284
285	/**
286	* vxfs_read_inode - fill in inode information
287	* @ip: inode pointer to fill
288	*
289	* Description:
290	* vxfs_read_inode reads the disk inode for @ip and fills
291	* in all relevant fields in @ip.
292	*/
293	void
294	vxfs_read_inode(struct inode *ip)
295	{
296	struct super_block *sbp = ip->i_sb;
297	struct vxfs_inode_info *vip;
f5e54d6e	298	const struct address_space_operations *aops;
1da177e4 LT	299	ino_t ino = ip->i_ino;
	300
	301	if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
	302	return;
	303
	304	vxfs_iinit(ip, vip);
	305
	306	if (VXFS_ISIMMED(vip))
	307	aops = &vxfs_immed_aops;
	308	else
	309	aops = &vxfs_aops;
	310
	311	if (S_ISREG(ip->i_mode)) {
dc487002	312	ip->i_fop = &generic_ro_fops;
1da177e4 LT	313	ip->i_mapping->a_ops = aops;
	314	} else if (S_ISDIR(ip->i_mode)) {
	315	ip->i_op = &vxfs_dir_inode_ops;
	316	ip->i_fop = &vxfs_dir_operations;
	317	ip->i_mapping->a_ops = aops;
	318	} else if (S_ISLNK(ip->i_mode)) {
	319	if (!VXFS_ISIMMED(vip)) {
	320	ip->i_op = &page_symlink_inode_operations;
	321	ip->i_mapping->a_ops = &vxfs_aops;
	322	} else
	323	ip->i_op = &vxfs_immed_symlink_iops;
	324	} else
	325	init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));
	326
	327	return;
	328	}
	329
	330	/**
	331	* vxfs_clear_inode - remove inode from main memory
	332	* @ip: inode to discard.
	333	*
	334	* Description:
	335	* vxfs_clear_inode() is called on the final iput and frees the private
	336	* inode area.
	337	*/
	338	void
	339	vxfs_clear_inode(struct inode *ip)
	340	{
	341	kmem_cache_free(vxfs_inode_cachep, ip->u.generic_ip);
	342	}