2 files changed, 39 insertions, 6 deletions

diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index d821d468e5a2..8a6d34fa668a 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -312,9 +312,17 @@ static int omfs_write_begin(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned flags,
 			struct page **pagep, void **fsdata)
 {
-	*pagep = NULL;
-	return block_write_begin(file, mapping, pos, len, flags,
-				pagep, fsdata, omfs_get_block);
+	int ret;
+
+	ret = block_write_begin(mapping, pos, len, flags, pagep,
+				omfs_get_block);
+	if (unlikely(ret)) {
+		loff_t isize = mapping->host->i_size;
+		if (pos + len > isize)
+			vmtruncate(mapping->host, isize);
+	}
+
+	return ret;
 }
 
 static sector_t omfs_bmap(struct address_space *mapping, sector_t block)
@@ -333,7 +341,29 @@ const struct file_operations omfs_file_operations = {
 	.splice_read = generic_file_splice_read,
 };
 
+static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
+{
+	struct inode *inode = dentry->d_inode;
+	int error;
+
+	error = inode_change_ok(inode, attr);
+	if (error)
+		return error;
+
+	if ((attr->ia_valid & ATTR_SIZE) &&
+	    attr->ia_size != i_size_read(inode)) {
+		error = vmtruncate(inode, attr->ia_size);
+		if (error)
+			return error;
+	}
+
+	setattr_copy(inode, attr);
+	mark_inode_dirty(inode);
+	return 0;
+}
+
 const struct inode_operations omfs_file_inops = {
+	.setattr = omfs_setattr,
 	.truncate = omfs_truncate
 };
 
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index 579d33fedddd..14a22863291a 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -181,9 +181,13 @@ int omfs_sync_inode(struct inode *inode)
  * called when an entry is deleted, need to clear the bits in the
  * bitmaps.
  */
-static void omfs_delete_inode(struct inode *inode)
+static void omfs_evict_inode(struct inode *inode)
 {
 	truncate_inode_pages(&inode->i_data, 0);
+	end_writeback(inode);
+
+	if (inode->i_nlink)
+		return;
 
 	if (S_ISREG(inode->i_mode)) {
 		inode->i_size = 0;
@@ -191,7 +195,6 @@ static void omfs_delete_inode(struct inode *inode)
 	}
 
 	omfs_clear_range(inode->i_sb, inode->i_ino, 2);
-	clear_inode(inode);
 }
 
 struct inode *omfs_iget(struct super_block *sb, ino_t ino)
@@ -288,7 +291,7 @@ static int omfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 
 static const struct super_operations omfs_sops = {
 	.write_inode	= omfs_write_inode,
-	.delete_inode	= omfs_delete_inode,
+	.evict_inode	= omfs_evict_inode,
 	.put_super	= omfs_put_super,
 	.statfs		= omfs_statfs,
 	.show_options	= generic_show_options,