quota: constify struct path in quota_on

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/ext4/super.c

@@ -1187,7 +1187,7 @@ static int ext4_release_dquot(struct dquot *dquot);
 static int ext4_mark_dquot_dirty(struct dquot *dquot);
 static int ext4_write_info(struct super_block *sb, int type);
 static int ext4_quota_on(struct super_block *sb, int type, int format_id,
-			 struct path *path);
+			 const struct path *path);
 static int ext4_quota_off(struct super_block *sb, int type);
 static int ext4_quota_on_mount(struct super_block *sb, int type);
 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
@@ -5239,7 +5239,7 @@ static void lockdep_set_quota_inode(struct inode *inode, int subclass)
  * Standard function to be called on quota_on
  */
 static int ext4_quota_on(struct super_block *sb, int type, int format_id,
-			 struct path *path)
+			 const struct path *path)
 {
 	int err;
 

fs/quota/dquot.c

@@ -2401,7 +2401,7 @@ int dquot_resume(struct super_block *sb, int type)
 EXPORT_SYMBOL(dquot_resume);
 
 int dquot_quota_on(struct super_block *sb, int type, int format_id,
-		   struct path *path)
+		   const struct path *path)
 {
 	int error = security_quota_on(path->dentry);
 	if (error)

fs/quota/quota.c

@@ -80,7 +80,7 @@ unsigned int qtype_enforce_flag(int type)
 }
 
 static int quota_quotaon(struct super_block *sb, int type, qid_t id,
-		         struct path *path)
+		         const struct path *path)
 {
 	if (!sb->s_qcop->quota_on && !sb->s_qcop->quota_enable)
 		return -ENOSYS;
@@ -700,7 +700,7 @@ static int quota_rmxquota(struct super_block *sb, void __user *addr)
 
 /* Copy parameters and call proper function */
 static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
-		       void __user *addr, struct path *path)
+		       void __user *addr, const struct path *path)
 {
 	int ret;
 

fs/reiserfs/super.c

@@ -802,7 +802,7 @@ static int reiserfs_acquire_dquot(struct dquot *);
 static int reiserfs_release_dquot(struct dquot *);
 static int reiserfs_mark_dquot_dirty(struct dquot *);
 static int reiserfs_write_info(struct super_block *, int);
-static int reiserfs_quota_on(struct super_block *, int, int, struct path *);
+static int reiserfs_quota_on(struct super_block *, int, int, const struct path *);
 
 static const struct dquot_operations reiserfs_quota_operations = {
 	.write_dquot = reiserfs_write_dquot,
@@ -2348,7 +2348,7 @@ static int reiserfs_quota_on_mount(struct super_block *sb, int type)
  * Standard function to be called on quota_on
  */
 static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
-			     struct path *path)
+			     const struct path *path)
 {
 	int err;
 	struct inode *inode;

include/linux/quota.h

@@ -431,7 +431,7 @@ struct qc_info {
 
 /* Operations handling requests from userspace */
 struct quotactl_ops {
-	int (*quota_on)(struct super_block *, int, int, struct path *);
+	int (*quota_on)(struct super_block *, int, int, const struct path *);
 	int (*quota_off)(struct super_block *, int);
 	int (*quota_enable)(struct super_block *, unsigned int);
 	int (*quota_disable)(struct super_block *, unsigned int);

include/linux/quotaops.h

@@ -90,7 +90,7 @@ int dquot_file_open(struct inode *inode, struct file *file);
 int dquot_enable(struct inode *inode, int type, int format_id,
 	unsigned int flags);
 int dquot_quota_on(struct super_block *sb, int type, int format_id,
- 	struct path *path);
+	const struct path *path);
 int dquot_quota_on_mount(struct super_block *sb, char *qf_name,
  	int format_id, int type);
 int dquot_quota_off(struct super_block *sb, int type);