2 files changed, 20 insertions, 45 deletions

diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h
index 15b2f094d36e..aa02599b770f 100644
--- a/fs/hostfs/hostfs.h
+++ b/fs/hostfs/hostfs.h
@@ -3,40 +3,8 @@
 #define __UM_FS_HOSTFS
 
 #include <os.h>
+#include <generated/asm-offsets.h>
 
-/*
- * These are exactly the same definitions as in fs.h, but the names are
- * changed so that this file can be included in both kernel and user files.
- */
-
-#define HOSTFS_ATTR_MODE	1
-#define HOSTFS_ATTR_UID 	2
-#define HOSTFS_ATTR_GID 	4
-#define HOSTFS_ATTR_SIZE	8
-#define HOSTFS_ATTR_ATIME	16
-#define HOSTFS_ATTR_MTIME	32
-#define HOSTFS_ATTR_CTIME	64
-#define HOSTFS_ATTR_ATIME_SET	128
-#define HOSTFS_ATTR_MTIME_SET	256
-
-/* This one is unused by hostfs. */
-#define HOSTFS_ATTR_FORCE	512	/* Not a change, but a change it */
-#define HOSTFS_ATTR_ATTR_FLAG	1024
-
-/*
- * If you are very careful, you'll notice that these two are missing:
- *
- * #define ATTR_KILL_SUID	2048
- * #define ATTR_KILL_SGID	4096
- *
- * and this is because they were added in 2.5 development.
- * Actually, they are not needed by most ->setattr() methods - they are set by
- * callers of notify_change() to notify that the setuid/setgid bits must be
- * dropped.
- * notify_change() will delete those flags, make sure attr->ia_valid & ATTR_MODE
- * is on, and remove the appropriate bits from attr->ia_mode (attr is a
- * "struct iattr *"). -BlaisorBlade
- */
 struct hostfs_timespec {
 	long long tv_sec;
 	long long tv_nsec;
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 1e1acf5775ab..51d26aa2b93e 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -581,7 +581,7 @@ static struct inode *hostfs_iget(struct super_block *sb, char *name)
 	if (!inode)
 		return ERR_PTR(-ENOMEM);
 
-	if (inode->i_state & I_NEW) {
+	if (inode_state_read_once(inode) & I_NEW) {
 		unlock_new_inode(inode);
 	} else {
 		spin_lock(&inode->i_lock);
@@ -979,7 +979,7 @@ static int hostfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
 {
 	struct hostfs_fs_info *fsi = fc->s_fs_info;
 	struct fs_parse_result result;
-	char *host_root;
+	char *host_root, *tmp_root;
 	int opt;
 
 	opt = fs_parse(fc, hostfs_param_specs, param, &result);
@@ -990,11 +990,13 @@ static int hostfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
 	case Opt_hostfs:
 		host_root = param->string;
 		if (!*host_root)
-			host_root = "";
-		fsi->host_root_path =
-			kasprintf(GFP_KERNEL, "%s/%s", root_ino, host_root);
-		if (fsi->host_root_path == NULL)
+			break;
+		tmp_root = kasprintf(GFP_KERNEL, "%s%s",
+				     fsi->host_root_path, host_root);
+		if (!tmp_root)
 			return -ENOMEM;
+		kfree(fsi->host_root_path);
+		fsi->host_root_path = tmp_root;
 		break;
 	}
 
@@ -1004,17 +1006,17 @@ static int hostfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
 static int hostfs_parse_monolithic(struct fs_context *fc, void *data)
 {
 	struct hostfs_fs_info *fsi = fc->s_fs_info;
-	char *host_root = (char *)data;
+	char *tmp_root, *host_root = (char *)data;
 
 	/* NULL is printed as '(null)' by printf(): avoid that. */
 	if (host_root == NULL)
-		host_root = "";
+		return 0;
 
-	fsi->host_root_path =
-		kasprintf(GFP_KERNEL, "%s/%s", root_ino, host_root);
-	if (fsi->host_root_path == NULL)
+	tmp_root = kasprintf(GFP_KERNEL, "%s%s", fsi->host_root_path, host_root);
+	if (!tmp_root)
 		return -ENOMEM;
-
+	kfree(fsi->host_root_path);
+	fsi->host_root_path = tmp_root;
 	return 0;
 }
 
@@ -1049,6 +1051,11 @@ static int hostfs_init_fs_context(struct fs_context *fc)
 	if (!fsi)
 		return -ENOMEM;
 
+	fsi->host_root_path = kasprintf(GFP_KERNEL, "%s/", root_ino);
+	if (!fsi->host_root_path) {
+		kfree(fsi);
+		return -ENOMEM;
+	}
 	fc->s_fs_info = fsi;
 	fc->ops = &hostfs_context_ops;
 	return 0;