don't pass superblock to hypfs_vm_create_files()

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

arch/s390/hypfs/hypfs.h

@@ -37,7 +37,7 @@ extern int hypfs_diag_create_files(struct super_block *sb, struct dentry *root);
 /* VM Hypervisor */
 extern int hypfs_vm_init(void);
 extern void hypfs_vm_exit(void);
-extern int hypfs_vm_create_files(struct super_block *sb, struct dentry *root);
+extern int hypfs_vm_create_files(struct dentry *root);
 
 /* debugfs interface */
 struct hypfs_dbfs_file;

arch/s390/hypfs/hypfs_vm.c

@@ -107,16 +107,15 @@ static void diag2fc_free(const void *data)
 	vfree(data);
 }
 
-#define ATTRIBUTE(sb, dir, name, member) \
+#define ATTRIBUTE(dir, name, member) \
 do { \
 	void *rc; \
-	rc = hypfs_create_u64(sb, dir, name, member); \
+	rc = hypfs_create_u64(dir->d_sb, dir, name, member); \
 	if (IS_ERR(rc)) \
 		return PTR_ERR(rc); \
 } while(0)
 
-static int hpyfs_vm_create_guest(struct super_block *sb,
-				 struct dentry *systems_dir,
+static int hpyfs_vm_create_guest(struct dentry *systems_dir,
 				 struct diag2fc_data *data)
 {
 	char guest_name[NAME_LEN + 1] = {};
@@ -130,46 +129,46 @@ static int hpyfs_vm_create_guest(struct super_block *sb,
 	memcpy(guest_name, data->guest_name, NAME_LEN);
 	EBCASC(guest_name, NAME_LEN);
 	strim(guest_name);
-	guest_dir = hypfs_mkdir(sb, systems_dir, guest_name);
+	guest_dir = hypfs_mkdir(systems_dir->d_sb, systems_dir, guest_name);
 	if (IS_ERR(guest_dir))
 		return PTR_ERR(guest_dir);
-	ATTRIBUTE(sb, guest_dir, "onlinetime_us", data->el_time);
+	ATTRIBUTE(guest_dir, "onlinetime_us", data->el_time);
 
 	/* logical cpu information */
-	cpus_dir = hypfs_mkdir(sb, guest_dir, "cpus");
+	cpus_dir = hypfs_mkdir(guest_dir->d_sb, guest_dir, "cpus");
 	if (IS_ERR(cpus_dir))
 		return PTR_ERR(cpus_dir);
-	ATTRIBUTE(sb, cpus_dir, "cputime_us", data->used_cpu);
-	ATTRIBUTE(sb, cpus_dir, "capped", capped_value);
-	ATTRIBUTE(sb, cpus_dir, "dedicated", dedicated_flag);
-	ATTRIBUTE(sb, cpus_dir, "count", data->vcpus);
-	ATTRIBUTE(sb, cpus_dir, "weight_min", data->cpu_min);
-	ATTRIBUTE(sb, cpus_dir, "weight_max", data->cpu_max);
-	ATTRIBUTE(sb, cpus_dir, "weight_cur", data->cpu_shares);
+	ATTRIBUTE(cpus_dir, "cputime_us", data->used_cpu);
+	ATTRIBUTE(cpus_dir, "capped", capped_value);
+	ATTRIBUTE(cpus_dir, "dedicated", dedicated_flag);
+	ATTRIBUTE(cpus_dir, "count", data->vcpus);
+	ATTRIBUTE(cpus_dir, "weight_min", data->cpu_min);
+	ATTRIBUTE(cpus_dir, "weight_max", data->cpu_max);
+	ATTRIBUTE(cpus_dir, "weight_cur", data->cpu_shares);
 
 	/* memory information */
-	mem_dir = hypfs_mkdir(sb, guest_dir, "mem");
+	mem_dir = hypfs_mkdir(guest_dir->d_sb, guest_dir, "mem");
 	if (IS_ERR(mem_dir))
 		return PTR_ERR(mem_dir);
-	ATTRIBUTE(sb, mem_dir, "min_KiB", data->mem_min_kb);
-	ATTRIBUTE(sb, mem_dir, "max_KiB", data->mem_max_kb);
-	ATTRIBUTE(sb, mem_dir, "used_KiB", data->mem_used_kb);
-	ATTRIBUTE(sb, mem_dir, "share_KiB", data->mem_share_kb);
+	ATTRIBUTE(mem_dir, "min_KiB", data->mem_min_kb);
+	ATTRIBUTE(mem_dir, "max_KiB", data->mem_max_kb);
+	ATTRIBUTE(mem_dir, "used_KiB", data->mem_used_kb);
+	ATTRIBUTE(mem_dir, "share_KiB", data->mem_share_kb);
 
 	/* samples */
-	samples_dir = hypfs_mkdir(sb, guest_dir, "samples");
+	samples_dir = hypfs_mkdir(guest_dir->d_sb, guest_dir, "samples");
 	if (IS_ERR(samples_dir))
 		return PTR_ERR(samples_dir);
-	ATTRIBUTE(sb, samples_dir, "cpu_using", data->cpu_use_samp);
-	ATTRIBUTE(sb, samples_dir, "cpu_delay", data->cpu_delay_samp);
-	ATTRIBUTE(sb, samples_dir, "mem_delay", data->page_wait_samp);
-	ATTRIBUTE(sb, samples_dir, "idle", data->idle_samp);
-	ATTRIBUTE(sb, samples_dir, "other", data->other_samp);
-	ATTRIBUTE(sb, samples_dir, "total", data->total_samp);
+	ATTRIBUTE(samples_dir, "cpu_using", data->cpu_use_samp);
+	ATTRIBUTE(samples_dir, "cpu_delay", data->cpu_delay_samp);
+	ATTRIBUTE(samples_dir, "mem_delay", data->page_wait_samp);
+	ATTRIBUTE(samples_dir, "idle", data->idle_samp);
+	ATTRIBUTE(samples_dir, "other", data->other_samp);
+	ATTRIBUTE(samples_dir, "total", data->total_samp);
 	return 0;
 }
 
-int hypfs_vm_create_files(struct super_block *sb, struct dentry *root)
+int hypfs_vm_create_files(struct dentry *root)
 {
 	struct dentry *dir, *file;
 	struct diag2fc_data *data;
@@ -181,38 +180,38 @@ int hypfs_vm_create_files(struct super_block *sb, struct dentry *root)
 		return PTR_ERR(data);
 
 	/* Hpervisor Info */
-	dir = hypfs_mkdir(sb, root, "hyp");
+	dir = hypfs_mkdir(root->d_sb, root, "hyp");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
-	file = hypfs_create_str(sb, dir, "type", "z/VM Hypervisor");
+	file = hypfs_create_str(root->d_sb, dir, "type", "z/VM Hypervisor");
 	if (IS_ERR(file)) {
 		rc = PTR_ERR(file);
 		goto failed;
 	}
 
 	/* physical cpus */
-	dir = hypfs_mkdir(sb, root, "cpus");
+	dir = hypfs_mkdir(root->d_sb, root, "cpus");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
-	file = hypfs_create_u64(sb, dir, "count", data->lcpus);
+	file = hypfs_create_u64(root->d_sb, dir, "count", data->lcpus);
 	if (IS_ERR(file)) {
 		rc = PTR_ERR(file);
 		goto failed;
 	}
 
 	/* guests */
-	dir = hypfs_mkdir(sb, root, "systems");
+	dir = hypfs_mkdir(root->d_sb, root, "systems");
 	if (IS_ERR(dir)) {
 		rc = PTR_ERR(dir);
 		goto failed;
 	}
 
 	for (i = 0; i < count; i++) {
-		rc = hpyfs_vm_create_guest(sb, dir, &(data[i]));
+		rc = hpyfs_vm_create_guest(dir, &(data[i]));
 		if (rc)
 			goto failed;
 	}

arch/s390/hypfs/inode.c

@@ -193,7 +193,7 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	}
 	hypfs_delete_tree(sb->s_root);
 	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, sb->s_root);
+		rc = hypfs_vm_create_files(sb->s_root);
 	else
 		rc = hypfs_diag_create_files(sb, sb->s_root);
 	if (rc) {
@@ -302,7 +302,7 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!root_dentry)
 		return -ENOMEM;
 	if (MACHINE_IS_VM)
-		rc = hypfs_vm_create_files(sb, root_dentry);
+		rc = hypfs_vm_create_files(root_dentry);
 	else
 		rc = hypfs_diag_create_files(sb, root_dentry);
 	if (rc)