X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fs390%2Fhypfs%2Finode.c;h=ba5d3167df0db3175fb76525843094ac653582e6;hb=a22a0fab32e1216df56e4b9a577dc5c922cf7524;hp=813fc21358f9764cc2ae6a34a17d5edcd60c265c;hpb=db1a19b38f3a85f475b4ad716c71be133d8ca48e;p=linux-2.6-omap-h63xx.git

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
index 813fc21358f..ba5d3167df0 100644
--- a/arch/s390/hypfs/inode.c
+++ b/arch/s390/hypfs/inode.c
@@ -19,7 +19,6 @@
 #include <linux/module.h>
 #include <asm/ebcdic.h>
 #include "hypfs.h"
-#include "hypfs_diag.h"
 
 #define HYPFS_MAGIC 0x687970	/* ASCII 'hyp' */
 #define TMP_SIZE 64		/* size of temporary buffers */
@@ -35,7 +34,7 @@ struct hypfs_sb_info {
 	struct mutex lock;		/* lock to protect update process */
 };
 
-static struct file_operations hypfs_file_ops;
+static const struct file_operations hypfs_file_ops;
 static struct file_system_type hypfs_type;
 static struct super_operations hypfs_s_ops;
 
@@ -109,7 +108,7 @@ static void hypfs_drop_inode(struct inode *inode)
 
 static int hypfs_open(struct inode *inode, struct file *filp)
 {
-	char *data = filp->f_dentry->d_inode->i_private;
+	char *data = filp->f_path.dentry->d_inode->i_private;
 	struct hypfs_sb_info *fs_info;
 
 	if (filp->f_mode & FMODE_WRITE) {
@@ -134,12 +133,20 @@ static int hypfs_open(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-static ssize_t hypfs_aio_read(struct kiocb *iocb, __user char *buf,
-			      size_t count, loff_t offset)
+static ssize_t hypfs_aio_read(struct kiocb *iocb, const struct iovec *iov,
+			      unsigned long nr_segs, loff_t offset)
 {
 	char *data;
 	size_t len;
 	struct file *filp = iocb->ki_filp;
+	/* XXX: temporary */
+	char __user *buf = iov[0].iov_base;
+	size_t count = iov[0].iov_len;
+
+	if (nr_segs != 1) {
+		count = -EINVAL;
+		goto out;
+	}
 
 	data = filp->private_data;
 	len = strlen(data);
@@ -158,14 +165,15 @@ static ssize_t hypfs_aio_read(struct kiocb *iocb, __user char *buf,
 out:
 	return count;
 }
-static ssize_t hypfs_aio_write(struct kiocb *iocb, const char __user *buf,
-			       size_t count, loff_t pos)
+static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
+			      unsigned long nr_segs, loff_t offset)
 {
 	int rc;
 	struct super_block *sb;
 	struct hypfs_sb_info *fs_info;
+	size_t count = iov_length(iov, nr_segs);
 
-	sb = iocb->ki_filp->f_dentry->d_inode->i_sb;
+	sb = iocb->ki_filp->f_path.dentry->d_inode->i_sb;
 	fs_info = sb->s_fs_info;
 	/*
 	 * Currently we only allow one update per second for two reasons:
@@ -183,7 +191,10 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const char __user *buf,
 		goto out;
 	}
 	hypfs_delete_tree(sb->s_root);
-	rc = hypfs_diag_create_files(sb, sb->s_root);
+	if (MACHINE_IS_VM)
+		rc = hypfs_vm_create_files(sb, sb->s_root);
+	else
+		rc = hypfs_diag_create_files(sb, sb->s_root);
 	if (rc) {
 		printk(KERN_ERR "hypfs: Update failed\n");
 		hypfs_delete_tree(sb->s_root);
@@ -280,7 +291,10 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 		rc = -ENOMEM;
 		goto err_alloc;
 	}
-	rc = hypfs_diag_create_files(sb, root_dentry);
+	if (MACHINE_IS_VM)
+		rc = hypfs_vm_create_files(sb, root_dentry);
+	else
+		rc = hypfs_diag_create_files(sb, root_dentry);
 	if (rc)
 		goto err_tree;
 	sbi->update_file = hypfs_create_update_file(sb, root_dentry);
@@ -426,7 +440,7 @@ struct dentry *hypfs_create_str(struct super_block *sb, struct dentry *dir,
 	return dentry;
 }
 
-static struct file_operations hypfs_file_ops = {
+static const struct file_operations hypfs_file_ops = {
 	.open		= hypfs_open,
 	.release	= hypfs_release,
 	.read		= do_sync_read,
@@ -453,11 +467,15 @@ static int __init hypfs_init(void)
 {
 	int rc;
 
-	if (MACHINE_IS_VM)
-		return -ENODATA;
-	if (hypfs_diag_init()) {
-		rc = -ENODATA;
-		goto fail_diag;
+	if (MACHINE_IS_VM) {
+		if (hypfs_vm_init())
+			/* no diag 2fc, just exit */
+			return -ENODATA;
+	} else {
+		if (hypfs_diag_init()) {
+			rc = -ENODATA;
+			goto fail_diag;
+		}
 	}
 	kset_set_kset_s(&s390_subsys, hypervisor_subsys);
 	rc = subsystem_register(&s390_subsys);
@@ -471,7 +489,8 @@ static int __init hypfs_init(void)
 fail_filesystem:
 	subsystem_unregister(&s390_subsys);
 fail_sysfs:
-	hypfs_diag_exit();
+	if (!MACHINE_IS_VM)
+		hypfs_diag_exit();
 fail_diag:
 	printk(KERN_ERR "hypfs: Initialization failed with rc = %i.\n", rc);
 	return rc;
@@ -479,7 +498,8 @@ fail_diag:
 
 static void __exit hypfs_exit(void)
 {
-	hypfs_diag_exit();
+	if (!MACHINE_IS_VM)
+		hypfs_diag_exit();
 	unregister_filesystem(&hypfs_type);
 	subsystem_unregister(&s390_subsys);
 }