Merge to 2.1.38.

IMPORTANT NOTE:  I could not figure out what information is the
one that should be used for the following files (ie, those
that were in our tree, or those that came from Linus' patch),
please, check these:

include/asm-mips/jazz.h
include/asm-mips/jazzdma.h
include/asm-mips/ioctls.h

1 files changed, 109 insertions, 129 deletions

diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index b3263b42d..0ab88268d 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -69,13 +69,14 @@ void vfat_put_super(struct super_block *sb)
 
 static struct super_operations vfat_sops = { 
 	vfat_read_inode,
-	fat_notify_change,
 	fat_write_inode,
 	fat_put_inode,
+	fat_delete_inode,
+	fat_notify_change,
 	vfat_put_super,
-	NULL, /* added in 0.96c */
+	NULL, /* write_super */
 	fat_statfs,
-	NULL
+	NULL  /* remount */
 };
 
 static int parse_options(char *options,	struct fat_mount_options *opts)
@@ -227,7 +228,7 @@ static char bad_chars[] = "*?<>|\":/\\";
 static char bad_if_strict[] = "+=,; []";
 static char replace_chars[] = "[];,+=";
 
-static int vfat_find(struct inode *dir,const char *name,int len,
+static int vfat_find(struct inode *dir,struct qstr* name,
 		      int find_long,int new_filename,int is_dir,
 		      struct slot_info *sinfo_out);
 
@@ -409,6 +410,7 @@ static int vfat_create_shortname(struct inode *dir, const char *name,
 	char buf[8];
 	struct slot_info sinfo;
 	const char *name_start;
+	struct qstr qname;
 
 	PRINTK(("Entering vfat_create_shortname: name=%s, len=%d\n", name, len));
 	sz = 0;			/* Make compiler happy */
@@ -427,7 +429,9 @@ static int vfat_create_shortname(struct inode *dir, const char *name,
 		res = vfat_format_name('x', msdos_name, len, name_res, 1);
 		if (res > -1) {
 			PRINTK(("vfat_create_shortname 1\n"));
-			res = vfat_find(dir, msdos_name, len, 0, 0, 0, &sinfo);
+			qname.name=msdos_name;
+			qname.len=len;
+			res = vfat_find(dir, &qname, 0, 0, 0, &sinfo);
 			PRINTK(("vfat_create_shortname 2\n"));
 			if (res > -1) return -EEXIST;
 			return 0;
@@ -516,7 +520,9 @@ static int vfat_create_shortname(struct inode *dir, const char *name,
 	totlen = baselen + extlen + (extlen > 0);
 	res = 0;
 	if (MSDOS_SB(dir->i_sb)->options.numtail == 0) {
-		res = vfat_find(dir, msdos_name, totlen, 0, 0, 0, &sinfo);
+		qname.name=msdos_name;
+		qname.len=totlen;
+		res = vfat_find(dir, &qname, 0, 0, 0, &sinfo);
 	}
 	i = 0;
 	while (res > -1) {
@@ -537,7 +543,9 @@ static int vfat_create_shortname(struct inode *dir, const char *name,
 		strcpy(&msdos_name[baselen+sz+2], ext);
 
 		totlen = baselen + sz + 1 + extlen + (extlen > 0);
-		res = vfat_find(dir, msdos_name, totlen, 0, 0, 0, &sinfo);
+		qname.name=msdos_name;
+		qname.len=totlen;
+		res = vfat_find(dir, &qname, 0, 0, 0, &sinfo);
 	}
 	res = vfat_format_name('x', msdos_name, totlen, name_res, 1);
 	return res;
@@ -803,7 +811,7 @@ static int vfat_readdir_cb(
 	return -1;
 }
 
-static int vfat_find(struct inode *dir,const char *name,int len,
+static int vfat_find(struct inode *dir,struct qstr* qname,
     int find_long, int new_filename,int is_dir,struct slot_info *sinfo_out)
 {
 	struct super_block *sb = dir->i_sb;
@@ -820,8 +828,8 @@ static int vfat_find(struct inode *dir,const char *name,int len,
 
 	PRINTK(("Entering vfat_find\n"));
 	fil.f_pos = 0;
-	vf.name = name;
-	vf.len = len;
+	vf.name = qname->name;
+	vf.len = qname->len;
 	vf.new_filename = new_filename;
 	vf.found = 0;
 	vf.posix = MSDOS_SB(sb)->options.posixfs;
@@ -847,7 +855,8 @@ static int vfat_find(struct inode *dir,const char *name,int len,
 	if (!vf.found && !new_filename)
 		return -ENOENT;
 	
-	res = vfat_build_slots(dir, name, len, ds, &slots, &is_long);
+	res = vfat_build_slots(dir, qname->name, qname->len, ds, 
+			       &slots, &is_long);
 	if (res < 0) return res;
 
 	de = (struct msdos_dir_entry *) ds;
@@ -910,71 +919,54 @@ static int vfat_find(struct inode *dir,const char *name,int len,
 	return -ENOENT;
 }
 
-int vfat_lookup(struct inode *dir,const char *name,int len,
-    struct inode **result)
+int vfat_lookup(struct inode *dir,struct dentry *dentry)
 {
-	int res, ino;
+	int res;
 	struct inode *next;
 	struct slot_info sinfo;
+	struct inode *result;
 	
-	PRINTK (("vfat_lookup: name=%s, len=%d\n", name, len));
+	PRINTK (("vfat_lookup: name=%s, len=%d\n", 
+		 dentry->d_name.name, dentry->d_name.len));
 
-	*result = NULL;
-	if (!dir) return -ENOENT;
-	if (!S_ISDIR(dir->i_mode)) {
-		iput(dir);
-		return -ENOENT;
-	}
-	PRINTK (("vfat_lookup 2\n"));
-	if (len == 1 && name[0] == '.') {
-		*result = dir;
+	result = NULL;
+	if ((res = vfat_find(dir,&dentry->d_name,1,0,0,&sinfo)) < 0) {
+		d_add(dentry,NULL);
 		return 0;
 	}
-	if (len == 2 && name[0] == '.' && name[1] == '.') {
-		ino = fat_parent_ino(dir,0);
-		iput(dir);
-		if (ino < 0) return ino;
-		if (!(*result = iget(dir->i_sb,ino))) return -EACCES;
-		return 0;
-	}
-	PRINTK (("vfat_lookup 3\n"));
-	if ((res = vfat_find(dir,name,len,1,0,0,&sinfo)) < 0) {
-		iput(dir);
-		return res;
-	}
 	PRINTK (("vfat_lookup 4.5\n"));
-	if (!(*result = iget(dir->i_sb,sinfo.ino))) {
-		iput(dir);
+	if (!(result = iget(dir->i_sb,sinfo.ino)))
 		return -EACCES;
-	}
 	PRINTK (("vfat_lookup 5\n"));
-	if (!(*result)->i_sb ||
-	    ((*result)->i_sb->s_magic != MSDOS_SUPER_MAGIC)) {
+	if (!result->i_sb ||
+	    (result->i_sb->s_magic != MSDOS_SUPER_MAGIC)) {
 		/* crossed a mount point into a non-msdos fs */
-		iput(dir);
+		d_add(dentry,result);
 		return 0;
 	}
-	if (MSDOS_I(*result)->i_busy) { /* mkdir in progress */
-		iput(*result);
-		iput(dir);
-		return -ENOENT;
+	if (MSDOS_I(result)->i_busy) { /* mkdir in progress */
+		iput(result);
+		d_add(dentry,NULL);
+		return 0;
 	}
 	PRINTK (("vfat_lookup 6\n"));
-	while (MSDOS_I(*result)->i_old) {
-		next = MSDOS_I(*result)->i_old;
-		iput(*result);
-		if (!(*result = iget(next->i_sb,next->i_ino))) {
+	while (MSDOS_I(result)->i_old) {
+		next = MSDOS_I(result)->i_old;
+		iput(result);
+		if (!(result = iget(next->i_sb,next->i_ino))) {
 			fat_fs_panic(dir->i_sb,"vfat_lookup: Can't happen");
 			iput(dir);
 			return -ENOENT;
 		}
 	}
-	iput(dir);
+	PRINTK (("vfat_lookup 7\n"));
+	d_add(dentry,result);
+	PRINTK (("vfat_lookup 8\n"));	
 	return 0;
 }
 
 
-static int vfat_create_entry(struct inode *dir,const char *name,int len,
+static int vfat_create_entry(struct inode *dir,struct qstr* qname,
     int is_dir, struct inode **result)
 {
 	struct super_block *sb = dir->i_sb;
@@ -984,8 +976,9 @@ static int vfat_create_entry(struct inode *dir,const char *name,int len,
 	struct msdos_dir_entry *de;
 	struct slot_info sinfo;
 
+	*result=0;
 	PRINTK(("vfat_create_entry 1\n"));
-	res = vfat_find(dir, name, len, 1, 1, is_dir, &sinfo);
+	res = vfat_find(dir, qname, 1, 1, is_dir, &sinfo);
 	if (res < 0) {
 		return res;
 	}
@@ -1017,19 +1010,18 @@ static int vfat_create_entry(struct inode *dir,const char *name,int len,
 	return 0;
 }
 
-int vfat_create(struct inode *dir,const char *name,int len,int mode,
-	struct inode **result)
+int vfat_create(struct inode *dir,struct dentry* dentry,int mode)
 {
 	int res;
+	struct inode *result;
 
-	if (!dir) return -ENOENT;
-
+	result=NULL;
 	fat_lock_creation();
-	res = vfat_create_entry(dir,name,len,0,result);
+	res = vfat_create_entry(dir,&dentry->d_name,0,&result);
 	if (res < 0) PRINTK(("vfat_create: unable to get new entry\n"));
 
 	fat_unlock_creation();
-	iput(dir);
+	d_instantiate(dentry,result);
 	return res;
 }
 
@@ -1148,115 +1140,107 @@ static int vfat_empty(struct inode *dir)
 }
 
 static int vfat_rmdir_free_ino(struct inode *dir,struct buffer_head *bh,
-     struct msdos_dir_entry *de,int ino)
+     struct msdos_dir_entry *de,struct dentry* dentry)
 {
 	struct super_block *sb = dir->i_sb;
-	struct inode *inode;
 	int res;
 
-	if (ino < 0) return -EINVAL;
-	if (!(inode = iget(dir->i_sb,ino))) return -ENOENT;
-	if (!S_ISDIR(inode->i_mode)) {
-		iput(inode);
+	if (!S_ISDIR(dentry->d_inode->i_mode)) {
 		return -ENOTDIR;
 	}
-	if (dir->i_dev != inode->i_dev || dir == inode) {
-		iput(inode);
+	if (dir->i_dev != dentry->d_inode->i_dev || dir == dentry->d_inode) {
 		return -EBUSY;
 	}
-	res = vfat_empty(inode);
+	res = vfat_empty(dentry->d_inode);
 	if (res) {
-		iput(inode);
 		return res;
 	}
-	inode->i_nlink = 0;
-	inode->i_mtime = dir->i_mtime = CURRENT_TIME;
-	inode->i_atime = dir->i_atime = CURRENT_TIME;
+	dentry->d_inode->i_nlink = 0;
+	dentry->d_inode->i_mtime = dir->i_mtime = CURRENT_TIME;
+	dentry->d_inode->i_atime = dir->i_atime = CURRENT_TIME;
 	dir->i_nlink--;
 	mark_inode_dirty(dir);
-	mark_inode_dirty(inode);
+	mark_inode_dirty(dentry->d_inode);
 	de->name[0] = DELETED_FLAG;
 	fat_mark_buffer_dirty(sb, bh, 1);
-	iput(inode);
 
 	return 0;
 }
 
 static int vfat_unlink_free_ino(struct inode *dir,struct buffer_head *bh,
-     struct msdos_dir_entry *de,int ino,int nospc)
+     struct msdos_dir_entry *de,struct dentry* dentry,int nospc)
 {
 	struct super_block *sb = dir->i_sb;
-	struct inode *inode;
-	if (!(inode = iget(dir->i_sb,ino))) return -ENOENT;
-	if ((!S_ISREG(inode->i_mode) && nospc) || IS_IMMUTABLE(inode)) {
-		iput(inode);
+	if ((!S_ISREG(dentry->d_inode->i_mode) && nospc) || 
+	    IS_IMMUTABLE(dentry->d_inode)) {
 		return -EPERM;
 	}
-	inode->i_nlink = 0;
-	inode->i_mtime = dir->i_mtime = CURRENT_TIME;
-	inode->i_atime = dir->i_atime = CURRENT_TIME;
+	dentry->d_inode->i_nlink = 0;
+	dentry->d_inode->i_mtime = dir->i_mtime = CURRENT_TIME;
+	dentry->d_inode->i_atime = dir->i_atime = CURRENT_TIME;
 	dir->i_version = ++event;
-	MSDOS_I(inode)->i_busy = 1;
+	MSDOS_I(dentry->d_inode)->i_busy = 1;
 	mark_inode_dirty(dir);
-	mark_inode_dirty(inode);
+	mark_inode_dirty(dentry->d_inode);
 	de->name[0] = DELETED_FLAG;
 	fat_mark_buffer_dirty(sb, bh, 1);
 
-	iput(inode);
 	return 0;
 }
 
 static int vfat_remove_entry(struct inode *dir,struct slot_info *sinfo,
-     struct buffer_head **bh,struct msdos_dir_entry **de,
+     struct buffer_head **bh,struct dentry* dentry,
      int is_dir,int nospc)
 {
 	struct super_block *sb = dir->i_sb;
 	loff_t offset;
+	struct msdos_dir_entry *de;
 	int res, i;
 
 	/* remove the shortname */
 	offset = sinfo->shortname_offset;
-	res = fat_get_entry(dir, &offset, bh, de);
+	res = fat_get_entry(dir, &offset, bh, &de);
 	if (res < 0) return res;
 	if (is_dir) {
-		res = vfat_rmdir_free_ino(dir,*bh,*de,res);
+		res = vfat_rmdir_free_ino(dir,*bh,de,dentry);
 	} else {
-		res = vfat_unlink_free_ino(dir,*bh,*de,res,nospc);
+		res = vfat_unlink_free_ino(dir,*bh,de,dentry,nospc);
 	}
 	if (res < 0) return res;
 		
 	/* remove the longname */
 	offset = sinfo->longname_offset;
 	for (i = sinfo->long_slots; i > 0; --i) {
-		res = fat_get_entry(dir, &offset, bh, de);
+		res = fat_get_entry(dir, &offset, bh, &de);
 		if (res < 0) {
 			printk("vfat_remove_entry: problem 1\n");
 			continue;
 		}
-		(*de)->name[0] = DELETED_FLAG;
-		(*de)->attr = 0;
+		de->name[0] = DELETED_FLAG;
+		de->attr = 0;
 		fat_mark_buffer_dirty(sb, *bh, 1);
 	}
 	return 0;
 }
 
 
-static int vfat_rmdirx(struct inode *dir,const char *name,int len)
+static int vfat_rmdirx(struct inode *dir,struct dentry* dentry)
 {
 	struct super_block *sb = dir->i_sb;
 	int res;
 	struct buffer_head *bh;
-	struct msdos_dir_entry *de;
 	struct slot_info sinfo;
 
 	bh = NULL;
 	res = -EPERM;
-	if (name[0] == '.' && (len == 1 || (len == 2 && name[1] == '.')))
+	if (dentry->d_name.name[0] == '.' && 
+	    (dentry->d_name.len == 1 || (dentry->d_name.len == 2 && 
+					 dentry->d_name.name[1] == '.')))
 		goto rmdir_done;
-	res = vfat_find(dir,name,len,1,0,0,&sinfo);
+	res = vfat_find(dir,&dentry->d_name,1,0,0,&sinfo);
 
 	if (res >= 0 && sinfo.total_slots > 0) {
-		res = vfat_remove_entry(dir,&sinfo,&bh,&de,1,0);
+		res = vfat_remove_entry(dir,&sinfo,&bh,dentry,1,0);
 		if (res > 0) {
 			res = 0;
 		}
@@ -1271,33 +1255,31 @@ rmdir_done:
 }
 
 /***** Remove a directory */
-int vfat_rmdir(struct inode *dir,const char *name,int len)
+int vfat_rmdir(struct inode *dir,struct dentry* dentry)
 {
 	int res;
 
-	res = vfat_rmdirx(dir, name, len);
-	iput(dir);
+	res = vfat_rmdirx(dir, dentry);
+	d_delete(dentry);
 	return res;
 }
 
 static int vfat_unlinkx(
 	struct inode *dir,
-	const char *name,
-	int len,
+	struct dentry* dentry,
 	int nospc)	/* Flag special file ? */
 {
 	struct super_block *sb = dir->i_sb;
 	int res;
 	struct buffer_head *bh;
-	struct msdos_dir_entry *de;
 	struct slot_info sinfo;
 
 	bh = NULL;
-	if ((res = vfat_find(dir,name,len,1,0,0,&sinfo)) < 0)
+	if ((res = vfat_find(dir,&dentry->d_name,1,0,0,&sinfo)) < 0)
 		goto unlink_done;
 
 	if (res >= 0 && sinfo.total_slots > 0) {
-		res = vfat_remove_entry(dir,&sinfo,&bh,&de,0,nospc);
+		res = vfat_remove_entry(dir,&sinfo,&bh,dentry,0,nospc);
 		if (res > 0) {
 			res = 0;
 		}
@@ -1311,15 +1293,14 @@ unlink_done:
 }
 
 
-int vfat_mkdir(struct inode *dir,const char *name,int len,int mode)
+int vfat_mkdir(struct inode *dir,struct dentry* dentry,int mode)
 {
 	struct inode *inode;
 	int res;
 
 	fat_lock_creation();
-	if ((res = vfat_create_entry(dir,name,len,1,&inode)) < 0) {
+	if ((res = vfat_create_entry(dir,&dentry->d_name,1,&inode)) < 0) {
 		fat_unlock_creation();
-		iput(dir);
 		return res;
 	}
 
@@ -1330,28 +1311,27 @@ int vfat_mkdir(struct inode *dir,const char *name,int len,int mode)
 	res = vfat_create_dotdirs(inode, dir);
 	fat_unlock_creation();
 	MSDOS_I(inode)->i_busy = 0;
-	iput(inode);
-	iput(dir);
+	d_instantiate(dentry,inode);
 	if (res < 0) {
-		if (vfat_rmdir(dir,name,len) < 0)
+		if (vfat_rmdir(dir,dentry) < 0)
 			fat_fs_panic(dir->i_sb,"rmdir in mkdir failed");
 	}
 	return res;
 }
 
 /***** Unlink, as called for msdosfs */
-int vfat_unlink(struct inode *dir,const char *name,int len)
+int vfat_unlink(struct inode *dir,struct dentry* dentry)
 {
 	int res;
 
-	res = vfat_unlinkx (dir,name,len,1);
-	iput(dir);
+	res = vfat_unlinkx (dir,dentry,1);
+	d_delete(dentry);
 	return res;
 }
 
 
-int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
-		struct inode *new_dir,const char *new_name,int new_len)
+int vfat_rename(struct inode *old_dir,struct dentry *old_dentry,
+		struct inode *new_dir,struct dentry *new_dentry)
 {
 	struct super_block *sb = old_dir->i_sb;
 	struct buffer_head *old_bh,*new_bh,*dotdot_bh;
@@ -1364,13 +1344,15 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 	struct slot_info sinfo;
 
 	PRINTK(("vfat_rename 1\n"));
-	if (old_dir == new_dir && old_len == new_len &&
-	    strncmp(old_name, new_name, old_len) == 0)
+	if (old_dir == new_dir && 
+	    old_dentry->d_name.len == new_dentry->d_name.len &&
+	    strncmp(old_dentry->d_name.name, new_dentry->d_name.name, 
+		    old_dentry->d_name.len) == 0)
 		return 0;
 
 	old_bh = new_bh = NULL;
 	old_inode = new_inode = NULL;
-	res = vfat_find(old_dir,old_name,old_len,1,0,0,&sinfo);
+	res = vfat_find(old_dir,&old_dentry->d_name,1,0,0,&sinfo);
 	PRINTK(("vfat_rename 2\n"));
 	if (res < 0) goto rename_done;
 
@@ -1383,8 +1365,7 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 	if (res < 0) goto rename_done;
 
 	res = -ENOENT;
-	if (!(old_inode = iget(old_dir->i_sb,old_ino)))
-		goto rename_done;
+	old_inode = old_dentry->d_inode;
 	is_dir = S_ISDIR(old_inode->i_mode);
 	if (is_dir) {
 		if ((old_dir->i_dev != new_dir->i_dev) ||
@@ -1413,7 +1394,7 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 		iput(walk);
 	}
 
-	res = vfat_find(new_dir,new_name,new_len,1,0,is_dir,&sinfo);
+	res = vfat_find(new_dir,&new_dentry->d_name,1,0,is_dir,&sinfo);
 
 	PRINTK(("vfat_rename 4\n"));
 	if (res > -1) {
@@ -1432,12 +1413,12 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 		iput(new_inode);
 		if (new_is_dir) {
 			PRINTK(("vfat_rename 7\n"));
-			res = vfat_rmdirx(new_dir,new_name,new_len);
+			res = vfat_rmdirx(new_dir,&new_dentry);
 			PRINTK(("vfat_rename 8\n"));
 			if (res < 0) goto rename_done;
 		} else {
 			PRINTK(("vfat_rename 9\n"));
-			res = vfat_unlinkx(new_dir,new_name,new_len,1);
+			res = vfat_unlinkx(new_dir,new_dentry,1);
 			PRINTK(("vfat_rename 10\n"));
 			if (res < 0) goto rename_done;
 		}
@@ -1445,7 +1426,7 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 
 	PRINTK(("vfat_rename 11\n"));
 	fat_lock_creation(); locked = 1;
-	res = vfat_find(new_dir,new_name,new_len,1,1,is_dir,&sinfo);
+	res = vfat_find(new_dir,&new_dentry->d_name,1,1,is_dir,&sinfo);
 
 	PRINTK(("vfat_rename 12\n"));
 	if (res < 0) goto rename_done;
@@ -1524,6 +1505,8 @@ int vfat_rename(struct inode *old_dir,const char *old_name,int old_len,
 	}
 
 	if (res > 0) res = 0;
+	d_instantiate(new_dentry,new_inode);
+	d_delete(old_dentry);
 
 rename_done:
 	if (locked)
@@ -1532,10 +1515,6 @@ rename_done:
 		fat_brelse(sb, old_bh);
 	if (new_bh)
 		fat_brelse(sb, new_bh);
-	if (old_inode)
-		iput(old_inode);
-	iput(old_dir);
-	iput(new_dir);
 	return res;
 }
 
@@ -1554,6 +1533,7 @@ struct inode_operations vfat_dir_inode_operations = {
 	NULL,			/* mknod */
 	vfat_rename,		/* rename */
 	NULL,			/* readlink */
+	NULL,			/* followlink */
 	NULL,			/* readpage */
 	NULL,			/* writepage */
 	fat_bmap,		/* bmap */