1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *   Copyright (C) International Business Machines Corp., 2000-2004
4  *   Portions Copyright (C) Christoph Hellwig, 2001-2002
31  * NAME:	free_ea_wmap(inode)
33  * FUNCTION:	free uncommitted extended attributes from working map
38 	dxd_t *ea = &JFS_IP(inode)->ea;  in free_ea_wmap()
40 	if (ea->flag & DXD_EXTENT) {  in free_ea_wmap()
45 	ea->flag = 0;  in free_ea_wmap()
49  * NAME:	jfs_create(dip, dentry, mode)
52  *		with name = <from dentry> and mode = <mode>
54  * PARAMETER:	dip	- parent directory vnode
55  *		dentry	- dentry of new file
56  *		mode	- create mode (rwxrwxrwx).
57  *		nd- nd struct
65 	int rc = 0;  in jfs_create()  local
69 	struct component_name dname;	/* child directory name */  in jfs_create()
74 	jfs_info("jfs_create: dip:0x%p name:%pd", dip, dentry);  in jfs_create()
76 	rc = dquot_initialize(dip);  in jfs_create()
77 	if (rc)  in jfs_create()
84 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_create()
94 		rc = PTR_ERR(ip);  in jfs_create()
98 	tid = txBegin(dip->i_sb, 0);  in jfs_create()
100 	mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_create()
101 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_create()
103 	rc = jfs_init_acl(tid, ip, dip);  in jfs_create()
104 	if (rc)  in jfs_create()
107 	rc = jfs_init_security(tid, ip, dip, &dentry->d_name);  in jfs_create()
108 	if (rc) {  in jfs_create()
113 	if ((rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE))) {  in jfs_create()
114 		jfs_err("jfs_create: dtSearch returned %d", rc);  in jfs_create()
120 	tblk->xflag |= COMMIT_CREATE;  in jfs_create()
121 	tblk->ino = ip->i_ino;  in jfs_create()
122 	tblk->u.ixpxd = JFS_IP(ip)->ixpxd;  in jfs_create()
128 	 * initialize the child XAD tree root in-line in inode  in jfs_create()
136 	ino = ip->i_ino;  in jfs_create()
137 	if ((rc = dtInsert(tid, dip, &dname, &ino, &btstack))) {  in jfs_create()
138 		if (rc == -EIO) {  in jfs_create()
139 			jfs_err("jfs_create: dtInsert returned -EIO");  in jfs_create()
146 	ip->i_op = &jfs_file_inode_operations;  in jfs_create()
147 	ip->i_fop = &jfs_file_operations;  in jfs_create()
148 	ip->i_mapping->a_ops = &jfs_aops;  in jfs_create()
152 	dip->i_ctime = dip->i_mtime = current_time(dip);  in jfs_create()
156 	rc = txCommit(tid, 2, &iplist[0], 0);  in jfs_create()
160 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_create()
161 	mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_create()
162 	if (rc) {  in jfs_create()
175 	jfs_info("jfs_create: rc:%d", rc);  in jfs_create()
176 	return rc;  in jfs_create()
181  * NAME:	jfs_mkdir(dip, dentry, mode)
184  *		with name = <from dentry> and mode = <mode>
186  * PARAMETER:	dip	- parent directory vnode
187  *		dentry	- dentry of child directory
188  *		mode	- create mode (rwxrwxrwx).
198 	int rc = 0;  in jfs_mkdir()  local
202 	struct component_name dname;	/* child directory name */  in jfs_mkdir()
207 	jfs_info("jfs_mkdir: dip:0x%p name:%pd", dip, dentry);  in jfs_mkdir()
209 	rc = dquot_initialize(dip);  in jfs_mkdir()
210 	if (rc)  in jfs_mkdir()
217 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_mkdir()
227 		rc = PTR_ERR(ip);  in jfs_mkdir()
231 	tid = txBegin(dip->i_sb, 0);  in jfs_mkdir()
233 	mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_mkdir()
234 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_mkdir()
236 	rc = jfs_init_acl(tid, ip, dip);  in jfs_mkdir()
237 	if (rc)  in jfs_mkdir()
240 	rc = jfs_init_security(tid, ip, dip, &dentry->d_name);  in jfs_mkdir()
241 	if (rc) {  in jfs_mkdir()
246 	if ((rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE))) {  in jfs_mkdir()
247 		jfs_err("jfs_mkdir: dtSearch returned %d", rc);  in jfs_mkdir()
253 	tblk->xflag |= COMMIT_CREATE;  in jfs_mkdir()
254 	tblk->ino = ip->i_ino;  in jfs_mkdir()
255 	tblk->u.ixpxd = JFS_IP(ip)->ixpxd;  in jfs_mkdir()
261 	 * initialize the child directory in-line in inode  in jfs_mkdir()
263 	dtInitRoot(tid, ip, dip->i_ino);  in jfs_mkdir()
269 	ino = ip->i_ino;  in jfs_mkdir()
270 	if ((rc = dtInsert(tid, dip, &dname, &ino, &btstack))) {  in jfs_mkdir()
271 		if (rc == -EIO) {  in jfs_mkdir()
272 			jfs_err("jfs_mkdir: dtInsert returned -EIO");  in jfs_mkdir()
280 	ip->i_op = &jfs_dir_inode_operations;  in jfs_mkdir()
281 	ip->i_fop = &jfs_dir_operations;  in jfs_mkdir()
287 	dip->i_ctime = dip->i_mtime = current_time(dip);  in jfs_mkdir()
290 	rc = txCommit(tid, 2, &iplist[0], 0);  in jfs_mkdir()
294 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_mkdir()
295 	mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_mkdir()
296 	if (rc) {  in jfs_mkdir()
310 	jfs_info("jfs_mkdir: rc:%d", rc);  in jfs_mkdir()
311 	return rc;  in jfs_mkdir()
315  * NAME:	jfs_rmdir(dip, dentry)
319  * PARAMETER:	dip	- parent inode
320  *		dentry	- child directory dentry
322  * RETURN:	-EINVAL	- if name is . or ..
323  *		-EINVAL - if . or .. exist but are invalid.
335 	int rc;  in jfs_rmdir()  local
343 	jfs_info("jfs_rmdir: dip:0x%p name:%pd", dip, dentry);  in jfs_rmdir()
346 	rc = dquot_initialize(dip);  in jfs_rmdir()
347 	if (rc)  in jfs_rmdir()
349 	rc = dquot_initialize(ip);  in jfs_rmdir()
350 	if (rc)  in jfs_rmdir()
355 		rc = -ENOTEMPTY;  in jfs_rmdir()
359 	if ((rc = get_UCSname(&dname, dentry))) {  in jfs_rmdir()
363 	tid = txBegin(dip->i_sb, 0);  in jfs_rmdir()
365 	mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_rmdir()
366 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_rmdir()
372 	tblk->xflag |= COMMIT_DELETE;  in jfs_rmdir()
373 	tblk->u.ip = ip;  in jfs_rmdir()
378 	ino = ip->i_ino;  in jfs_rmdir()
379 	if ((rc = dtDelete(tid, dip, &dname, &ino, JFS_REMOVE))) {  in jfs_rmdir()
380 		jfs_err("jfs_rmdir: dtDelete returned %d", rc);  in jfs_rmdir()
381 		if (rc == -EIO)  in jfs_rmdir()
384 		mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_rmdir()
385 		mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_rmdir()
393 	dip->i_ctime = dip->i_mtime = current_time(dip);  in jfs_rmdir()
399 	/* free EA from both persistent and working map */  in jfs_rmdir()
400 	if (JFS_IP(ip)->ea.flag & DXD_EXTENT) {  in jfs_rmdir()
402 		txEA(tid, ip, &JFS_IP(ip)->ea, NULL);  in jfs_rmdir()
404 	JFS_IP(ip)->ea.flag = 0;  in jfs_rmdir()
406 	/* free ACL from both persistent and working map */  in jfs_rmdir()
407 	if (JFS_IP(ip)->acl.flag & DXD_EXTENT) {  in jfs_rmdir()
409 		txEA(tid, ip, &JFS_IP(ip)->acl, NULL);  in jfs_rmdir()
411 	JFS_IP(ip)->acl.flag = 0;  in jfs_rmdir()
417 	rc = txCommit(tid, 2, &iplist[0], 0);  in jfs_rmdir()
421 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_rmdir()
422 	mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_rmdir()
429 		if (dip->i_size > 1)  in jfs_rmdir()
439 	jfs_info("jfs_rmdir: rc:%d", rc);  in jfs_rmdir()
440 	return rc;  in jfs_rmdir()
444  * NAME:	jfs_unlink(dip, dentry)
446  * FUNCTION:	remove a link to object <vp> named by <name>
449  * PARAMETER:	dip	- inode of parent directory
450  *		dentry	- dentry of object to be removed
465 	int rc;  in jfs_unlink()  local
469 	struct component_name dname;	/* object name */  in jfs_unlink()
475 	jfs_info("jfs_unlink: dip:0x%p name:%pd", dip, dentry);  in jfs_unlink()
478 	rc = dquot_initialize(dip);  in jfs_unlink()
479 	if (rc)  in jfs_unlink()
481 	rc = dquot_initialize(ip);  in jfs_unlink()
482 	if (rc)  in jfs_unlink()
485 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_unlink()
490 	tid = txBegin(dip->i_sb, 0);  in jfs_unlink()
492 	mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_unlink()
493 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_unlink()
501 	ino = ip->i_ino;  in jfs_unlink()
502 	if ((rc = dtDelete(tid, dip, &dname, &ino, JFS_REMOVE))) {  in jfs_unlink()
503 		jfs_err("jfs_unlink: dtDelete returned %d", rc);  in jfs_unlink()
504 		if (rc == -EIO)  in jfs_unlink()
507 		mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_unlink()
508 		mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_unlink()
513 	ASSERT(ip->i_nlink);  in jfs_unlink()
515 	ip->i_ctime = dip->i_ctime = dip->i_mtime = current_time(ip);  in jfs_unlink()
524 	if (ip->i_nlink == 0) {  in jfs_unlink()
530 			mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_unlink()
531 			mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_unlink()
533 			rc = new_size;  in jfs_unlink()
537 		tblk->xflag |= COMMIT_DELETE;  in jfs_unlink()
538 		tblk->u.ip = ip;  in jfs_unlink()
555 	rc = txCommit(tid, 2, &iplist[0], commit_flag);  in jfs_unlink()
559 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_unlink()
560 	mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_unlink()
562 	while (new_size && (rc == 0)) {  in jfs_unlink()
563 		tid = txBegin(dip->i_sb, 0);  in jfs_unlink()
564 		mutex_lock(&JFS_IP(ip)->commit_mutex);  in jfs_unlink()
568 			rc = new_size;  in jfs_unlink()
570 			rc = txCommit(tid, 2, &iplist[0], COMMIT_SYNC);  in jfs_unlink()
572 		mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_unlink()
575 	if (ip->i_nlink == 0)  in jfs_unlink()
585 		if (dip->i_size > 1)  in jfs_unlink()
594 	jfs_info("jfs_unlink: rc:%d", rc);  in jfs_unlink()
595 	return rc;  in jfs_unlink()
599  * NAME:	commitZeroLink()
601  * FUNCTION:	for non-directory, called by jfs_remove(),
607  *		only permanent disk and inode map resources are freed,
610  *		map by ctrunc1.
612  *		freed in both work and permanent map.
613  *		(? for temporary file - memory object is cached even
615  *		reference count > 0 -   )
617  * PARAMETERS:	cd	- pointer to commit data structure.
629 	filetype = ip->i_mode & S_IFMT;  in commitZeroLink()
635 		if (ip->i_size < IDATASIZE) {  in commitZeroLink()
636 			ip->i_size = 0;  in commitZeroLink()
647 	/* mark transaction of block map update type */  in commitZeroLink()
649 	tblk->xflag |= COMMIT_PMAP;  in commitZeroLink()
654 	if (JFS_IP(ip)->ea.flag & DXD_EXTENT)  in commitZeroLink()
655 		/* acquire maplock on EA to be freed from block map */  in commitZeroLink()
656 		txEA(tid, ip, &JFS_IP(ip)->ea, NULL);  in commitZeroLink()
661 	if (JFS_IP(ip)->acl.flag & DXD_EXTENT)  in commitZeroLink()
662 		/* acquire maplock on EA to be freed from block map */  in commitZeroLink()
663 		txEA(tid, ip, &JFS_IP(ip)->acl, NULL);  in commitZeroLink()
668 	 * free xtree/data blocks from persistent block map, and  in commitZeroLink()
669 	 * free xtree/data blocks from working block map if COMMIT_PWMAP;  in commitZeroLink()
671 	if (ip->i_size)  in commitZeroLink()
679  * NAME:	jfs_free_zero_link()
681  * FUNCTION:	for non-directory, called by iClose(),
682  *		free resources of a file from cache and WORKING map
686  * PARAMETER:	ip	- pointer to inode of file.
697 	type = ip->i_mode & S_IFMT;  in jfs_free_zero_link()
704 		if (ip->i_size < IDATASIZE)  in jfs_free_zero_link()
714 	if (JFS_IP(ip)->ea.flag & DXD_EXTENT) {  in jfs_free_zero_link()
715 		s64 xaddr = addressDXD(&JFS_IP(ip)->ea);  in jfs_free_zero_link()
716 		int xlen = lengthDXD(&JFS_IP(ip)->ea);  in jfs_free_zero_link()
721 		invalidate_dxd_metapages(ip, JFS_IP(ip)->ea);  in jfs_free_zero_link()
723 		/* free EA extent from working block map */  in jfs_free_zero_link()
726 		pxdlock->flag = mlckFREEPXD;  in jfs_free_zero_link()
727 		PXDaddress(&pxdlock->pxd, xaddr);  in jfs_free_zero_link()
728 		PXDlength(&pxdlock->pxd, xlen);  in jfs_free_zero_link()
735 	if (JFS_IP(ip)->acl.flag & DXD_EXTENT) {  in jfs_free_zero_link()
736 		s64 xaddr = addressDXD(&JFS_IP(ip)->acl);  in jfs_free_zero_link()
737 		int xlen = lengthDXD(&JFS_IP(ip)->acl);  in jfs_free_zero_link()
741 		invalidate_dxd_metapages(ip, JFS_IP(ip)->acl);  in jfs_free_zero_link()
743 		/* free ACL extent from working block map */  in jfs_free_zero_link()
746 		pxdlock->flag = mlckFREEPXD;  in jfs_free_zero_link()
747 		PXDaddress(&pxdlock->pxd, xaddr);  in jfs_free_zero_link()
748 		PXDlength(&pxdlock->pxd, xlen);  in jfs_free_zero_link()
755 	 * free xtree/data blocks from working block map;  in jfs_free_zero_link()
757 	if (ip->i_size)  in jfs_free_zero_link()
762  * NAME:	jfs_link(vp, dvp, name, crp)
764  * FUNCTION:	create a link to <vp> by the name = <name>
767  * PARAMETER:	vp	- target object
768  *		dvp	- parent directory of new link
769  *		name	- name of new link to target object
770  *		crp	- credential
788 	int rc;  in jfs_link()  local
798 	rc = dquot_initialize(dir);  in jfs_link()
799 	if (rc)  in jfs_link()
802 	tid = txBegin(ip->i_sb, 0);  in jfs_link()
804 	mutex_lock_nested(&JFS_IP(dir)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_link()
805 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_link()
810 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_link()
813 	if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE)))  in jfs_link()
819 	ino = ip->i_ino;  in jfs_link()
820 	if ((rc = dtInsert(tid, dir, &dname, &ino, &btstack)))  in jfs_link()
825 	ip->i_ctime = current_time(ip);  in jfs_link()
826 	dir->i_ctime = dir->i_mtime = current_time(dir);  in jfs_link()
832 	rc = txCommit(tid, 2, &iplist[0], 0);  in jfs_link()
834 	if (rc) {  in jfs_link()
846 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_link()
847 	mutex_unlock(&JFS_IP(dir)->commit_mutex);  in jfs_link()
850 	jfs_info("jfs_link: rc:%d", rc);  in jfs_link()
851 	return rc;  in jfs_link()
855  * NAME:	jfs_symlink(dip, dentry, name)
857  * FUNCTION:	creates a symbolic link to <symlink> by name <name>
860  * PARAMETER:	dip	- parent directory vnode
861  *		dentry	- dentry of symbolic link
862  *		name	- the path name of the existing object
873 		       struct dentry *dentry, const char *name)  in jfs_symlink()  argument
875 	int rc;  in jfs_symlink()  local
891 	jfs_info("jfs_symlink: dip:0x%p name:%s", dip, name);  in jfs_symlink()
893 	rc = dquot_initialize(dip);  in jfs_symlink()
894 	if (rc)  in jfs_symlink()
897 	ssize = strlen(name) + 1;  in jfs_symlink()
904 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_symlink()
908 	 * allocate on-disk/in-memory inode for symbolic link:  in jfs_symlink()
913 		rc = PTR_ERR(ip);  in jfs_symlink()
917 	tid = txBegin(dip->i_sb, 0);  in jfs_symlink()
919 	mutex_lock_nested(&JFS_IP(dip)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_symlink()
920 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_symlink()
922 	rc = jfs_init_security(tid, ip, dip, &dentry->d_name);  in jfs_symlink()
923 	if (rc)  in jfs_symlink()
927 	tblk->xflag |= COMMIT_CREATE;  in jfs_symlink()
928 	tblk->ino = ip->i_ino;  in jfs_symlink()
929 	tblk->u.ixpxd = JFS_IP(ip)->ixpxd;  in jfs_symlink()
935 	ip->i_mode |= 0777;  in jfs_symlink()
938 	 * write symbolic link target path name  in jfs_symlink()
943 	 * write source path name inline in on-disk inode (fast symbolic link)  in jfs_symlink()
947 		ip->i_op = &jfs_fast_symlink_inode_operations;  in jfs_symlink()
949 		ip->i_link = JFS_IP(ip)->i_inline;  in jfs_symlink()
950 		memcpy(ip->i_link, name, ssize);  in jfs_symlink()
951 		ip->i_size = ssize - 1;  in jfs_symlink()
957 		if (ssize > sizeof (JFS_IP(ip)->i_inline))  in jfs_symlink()
958 			JFS_IP(ip)->mode2 &= ~INLINEEA;  in jfs_symlink()
960 		jfs_info("jfs_symlink: fast symlink added  ssize:%d name:%s ",  in jfs_symlink()
961 			 ssize, name);  in jfs_symlink()
964 	 * write source path name in a single extent  in jfs_symlink()
969 		ip->i_op = &jfs_symlink_inode_operations;  in jfs_symlink()
971 		ip->i_mapping->a_ops = &jfs_aops;  in jfs_symlink()
975 		 * path name) is treated as non-journaled user data,  in jfs_symlink()
978 		sb = ip->i_sb;  in jfs_symlink()
979 		bmask = JFS_SBI(sb)->bsize - 1;  in jfs_symlink()
982 		xlen = xsize >> JFS_SBI(sb)->l2bsize;  in jfs_symlink()
983 		if ((rc = xtInsert(tid, ip, 0, 0, xlen, &xaddr, 0))) {  in jfs_symlink()
987 		ip->i_size = ssize - 1;  in jfs_symlink()
996 				rc = -EIO;  in jfs_symlink()
1000 			memcpy(mp->data, name, copy_size);  in jfs_symlink()
1002 			ssize -= copy_size;  in jfs_symlink()
1003 			name += copy_size;  in jfs_symlink()
1004 			xaddr += JFS_SBI(sb)->nbperpage;  in jfs_symlink()
1011 	rc = dtSearch(dip, &dname, &ino, &btstack, JFS_CREATE);  in jfs_symlink()
1012 	if (rc == 0) {  in jfs_symlink()
1013 		ino = ip->i_ino;  in jfs_symlink()
1014 		rc = dtInsert(tid, dip, &dname, &ino, &btstack);  in jfs_symlink()
1016 	if (rc) {  in jfs_symlink()
1026 	dip->i_ctime = dip->i_mtime = current_time(dip);  in jfs_symlink()
1034 	rc = txCommit(tid, 2, &iplist[0], 0);  in jfs_symlink()
1038 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_symlink()
1039 	mutex_unlock(&JFS_IP(dip)->commit_mutex);  in jfs_symlink()
1040 	if (rc) {  in jfs_symlink()
1052 	jfs_info("jfs_symlink: rc:%d", rc);  in jfs_symlink()
1053 	return rc;  in jfs_symlink()
1058  * NAME:	jfs_rename
1072 	int rc;  in jfs_rename()  local
1084 		return -EINVAL;  in jfs_rename()
1088 	rc = dquot_initialize(old_dir);  in jfs_rename()
1089 	if (rc)  in jfs_rename()
1091 	rc = dquot_initialize(new_dir);  in jfs_rename()
1092 	if (rc)  in jfs_rename()
1098 	if ((rc = get_UCSname(&old_dname, old_dentry)))  in jfs_rename()
1101 	if ((rc = get_UCSname(&new_dname, new_dentry)))  in jfs_rename()
1107 	rc = dtSearch(old_dir, &old_dname, &ino, &btstack, JFS_LOOKUP);  in jfs_rename()
1108 	if (rc || (ino != old_ip->i_ino)) {  in jfs_rename()
1109 		rc = -ENOENT;  in jfs_rename()
1116 	rc = dtSearch(new_dir, &new_dname, &ino, &btstack, JFS_LOOKUP);  in jfs_rename()
1117 	if (!rc) {  in jfs_rename()
1118 		if ((!new_ip) || (ino != new_ip->i_ino)) {  in jfs_rename()
1119 			rc = -ESTALE;  in jfs_rename()
1122 	} else if (rc != -ENOENT)  in jfs_rename()
1126 		rc = -ESTALE;  in jfs_rename()
1130 	if (S_ISDIR(old_ip->i_mode)) {  in jfs_rename()
1133 				rc = -ENOTEMPTY;  in jfs_rename()
1140 		rc = dquot_initialize(new_ip);  in jfs_rename()
1141 		if (rc)  in jfs_rename()
1148 	tid = txBegin(new_dir->i_sb, 0);  in jfs_rename()
1156 	mutex_lock_nested(&JFS_IP(new_dir)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_rename()
1157 	mutex_lock_nested(&JFS_IP(old_ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_rename()
1159 		mutex_lock_nested(&JFS_IP(old_dir)->commit_mutex,  in jfs_rename()
1163 		mutex_lock_nested(&JFS_IP(new_ip)->commit_mutex,  in jfs_rename()
1168 		ino = new_ip->i_ino;  in jfs_rename()
1169 		rc = dtModify(tid, new_dir, &new_dname, &ino,  in jfs_rename()
1170 			      old_ip->i_ino, JFS_RENAME);  in jfs_rename()
1171 		if (rc)  in jfs_rename()
1174 		if (S_ISDIR(new_ip->i_mode)) {  in jfs_rename()
1176 			if (new_ip->i_nlink) {  in jfs_rename()
1177 				mutex_unlock(&JFS_IP(new_ip)->commit_mutex);  in jfs_rename()
1179 					mutex_unlock(&JFS_IP(old_dir)->commit_mutex);  in jfs_rename()
1180 				mutex_unlock(&JFS_IP(old_ip)->commit_mutex);  in jfs_rename()
1181 				mutex_unlock(&JFS_IP(new_dir)->commit_mutex);  in jfs_rename()
1182 				if (!S_ISDIR(old_ip->i_mode) && new_ip)  in jfs_rename()
1184 				jfs_error(new_ip->i_sb,  in jfs_rename()
1185 					  "new_ip->i_nlink != 0\n");  in jfs_rename()
1186 				return -EIO;  in jfs_rename()
1189 			tblk->xflag |= COMMIT_DELETE;  in jfs_rename()
1190 			tblk->u.ip = new_ip;  in jfs_rename()
1191 		} else if (new_ip->i_nlink == 0) {  in jfs_rename()
1196 				rc = new_size;  in jfs_rename()
1200 			tblk->xflag |= COMMIT_DELETE;  in jfs_rename()
1201 			tblk->u.ip = new_ip;  in jfs_rename()
1203 			new_ip->i_ctime = current_time(new_ip);  in jfs_rename()
1210 		rc = dtSearch(new_dir, &new_dname, &ino, &btstack,  in jfs_rename()
1212 		if (rc) {  in jfs_rename()
1213 			jfs_err("jfs_rename didn't expect dtSearch to fail w/rc = %d",  in jfs_rename()
1214 				rc);  in jfs_rename()
1218 		ino = old_ip->i_ino;  in jfs_rename()
1219 		rc = dtInsert(tid, new_dir, &new_dname, &ino, &btstack);  in jfs_rename()
1220 		if (rc) {  in jfs_rename()
1221 			if (rc == -EIO)  in jfs_rename()
1222 				jfs_err("jfs_rename: dtInsert returned -EIO");  in jfs_rename()
1225 		if (S_ISDIR(old_ip->i_mode))  in jfs_rename()
1232 	ino = old_ip->i_ino;  in jfs_rename()
1233 	rc = dtDelete(tid, old_dir, &old_dname, &ino, JFS_REMOVE);  in jfs_rename()
1234 	if (rc) {  in jfs_rename()
1235 		jfs_err("jfs_rename did not expect dtDelete to return rc = %d",  in jfs_rename()
1236 			rc);  in jfs_rename()
1240 	if (S_ISDIR(old_ip->i_mode)) {  in jfs_rename()
1247 			JFS_IP(old_ip)->i_dtroot.header.idotdot =  in jfs_rename()
1248 				cpu_to_le32(new_dir->i_ino);  in jfs_rename()
1252 				    (struct metapage *) &JFS_IP(old_ip)->bxflag,  in jfs_rename()
1254 			dtlck = (struct dt_lock *) & tlck->lock;  in jfs_rename()
1255 			ASSERT(dtlck->index == 0);  in jfs_rename()
1256 			lv = & dtlck->lv[0];  in jfs_rename()
1257 			lv->offset = 0;  in jfs_rename()
1258 			lv->length = 1;  in jfs_rename()
1259 			dtlck->index++;  in jfs_rename()
1266 	old_ip->i_ctime = current_time(old_ip);  in jfs_rename()
1269 	new_dir->i_ctime = new_dir->i_mtime = current_time(new_dir);  in jfs_rename()
1281 		old_dir->i_ctime = old_dir->i_mtime = current_time(old_dir);  in jfs_rename()
1295 	rc = txCommit(tid, ipcount, iplist, commit_flag);  in jfs_rename()
1300 		mutex_unlock(&JFS_IP(new_ip)->commit_mutex);  in jfs_rename()
1302 		mutex_unlock(&JFS_IP(old_dir)->commit_mutex);  in jfs_rename()
1303 	mutex_unlock(&JFS_IP(old_ip)->commit_mutex);  in jfs_rename()
1304 	mutex_unlock(&JFS_IP(new_dir)->commit_mutex);  in jfs_rename()
1306 	while (new_size && (rc == 0)) {  in jfs_rename()
1307 		tid = txBegin(new_ip->i_sb, 0);  in jfs_rename()
1308 		mutex_lock(&JFS_IP(new_ip)->commit_mutex);  in jfs_rename()
1312 			rc = new_size;  in jfs_rename()
1314 			rc = txCommit(tid, 1, &new_ip, COMMIT_SYNC);  in jfs_rename()
1316 		mutex_unlock(&JFS_IP(new_ip)->commit_mutex);  in jfs_rename()
1318 	if (new_ip && (new_ip->i_nlink == 0))  in jfs_rename()
1325 		if (old_dir->i_size > 1)  in jfs_rename()
1331 	if (new_ip && !S_ISDIR(new_ip->i_mode))  in jfs_rename()
1338 	jfs_info("jfs_rename: returning %d", rc);  in jfs_rename()
1339 	return rc;  in jfs_rename()
1344  * NAME:	jfs_mknod
1357 	int rc;  in jfs_mknod()  local
1363 	rc = dquot_initialize(dir);  in jfs_mknod()
1364 	if (rc)  in jfs_mknod()
1367 	if ((rc = get_UCSname(&dname, dentry)))  in jfs_mknod()
1372 		rc = PTR_ERR(ip);  in jfs_mknod()
1377 	tid = txBegin(dir->i_sb, 0);  in jfs_mknod()
1379 	mutex_lock_nested(&JFS_IP(dir)->commit_mutex, COMMIT_MUTEX_PARENT);  in jfs_mknod()
1380 	mutex_lock_nested(&JFS_IP(ip)->commit_mutex, COMMIT_MUTEX_CHILD);  in jfs_mknod()
1382 	rc = jfs_init_acl(tid, ip, dir);  in jfs_mknod()
1383 	if (rc)  in jfs_mknod()
1386 	rc = jfs_init_security(tid, ip, dir, &dentry->d_name);  in jfs_mknod()
1387 	if (rc) {  in jfs_mknod()
1392 	if ((rc = dtSearch(dir, &dname, &ino, &btstack, JFS_CREATE))) {  in jfs_mknod()
1398 	tblk->xflag |= COMMIT_CREATE;  in jfs_mknod()
1399 	tblk->ino = ip->i_ino;  in jfs_mknod()
1400 	tblk->u.ixpxd = JFS_IP(ip)->ixpxd;  in jfs_mknod()
1402 	ino = ip->i_ino;  in jfs_mknod()
1403 	if ((rc = dtInsert(tid, dir, &dname, &ino, &btstack))) {  in jfs_mknod()
1408 	ip->i_op = &jfs_file_inode_operations;  in jfs_mknod()
1409 	jfs_ip->dev = new_encode_dev(rdev);  in jfs_mknod()
1410 	init_special_inode(ip, ip->i_mode, rdev);  in jfs_mknod()
1414 	dir->i_ctime = dir->i_mtime = current_time(dir);  in jfs_mknod()
1420 	rc = txCommit(tid, 2, iplist, 0);  in jfs_mknod()
1424 	mutex_unlock(&JFS_IP(ip)->commit_mutex);  in jfs_mknod()
1425 	mutex_unlock(&JFS_IP(dir)->commit_mutex);  in jfs_mknod()
1426 	if (rc) {  in jfs_mknod()
1438 	jfs_info("jfs_mknod: returning %d", rc);  in jfs_mknod()
1439 	return rc;  in jfs_mknod()
1448 	int rc;  in jfs_lookup()  local
1450 	jfs_info("jfs_lookup: name = %pd", dentry);  in jfs_lookup()
1452 	if ((rc = get_UCSname(&key, dentry)))  in jfs_lookup()
1453 		return ERR_PTR(rc);  in jfs_lookup()
1454 	rc = dtSearch(dip, &key, &inum, &btstack, JFS_LOOKUP);  in jfs_lookup()
1456 	if (rc == -ENOENT) {  in jfs_lookup()
1458 	} else if (rc) {  in jfs_lookup()
1459 		jfs_err("jfs_lookup: dtSearch returned %d", rc);  in jfs_lookup()
1460 		ip = ERR_PTR(rc);  in jfs_lookup()
1462 		ip = jfs_iget(dip->i_sb, inum);  in jfs_lookup()
1476 		return ERR_PTR(-ESTALE);  in jfs_nfs_get_inode()
1481 	if (generation && inode->i_generation != generation) {  in jfs_nfs_get_inode()
1483 		return ERR_PTR(-ESTALE);  in jfs_nfs_get_inode()
1508 		le32_to_cpu(JFS_IP(d_inode(dentry))->i_dtroot.header.idotdot);  in jfs_get_parent()
1510 	return d_obtain_alias(jfs_iget(dentry->d_sb, parent_ino));  in jfs_get_parent()
1548 	for (i=0; i < this->len; i++)  in jfs_ci_hash()
1549 		hash = partial_name_hash(tolower(this->name[i]), hash);  in jfs_ci_hash()
1550 	this->hash = end_name_hash(hash);  in jfs_ci_hash()
1556 		unsigned int len, const char *str, const struct qstr *name)  in jfs_ci_compare()  argument
1560 	if (len != name->len)  in jfs_ci_compare()
1563 		if (tolower(str[i]) != tolower(name->name[i]))  in jfs_ci_compare()
1576 	 * Note, rename() to existing directory entry will have ->d_inode,  in jfs_ci_revalidate()
1577 	 * and will use existing name which isn't specified name by user.  in jfs_ci_revalidate()
1595 	 * case sensitive name which is specified by user if this is  in jfs_ci_revalidate()