f2fs: convert inline data before set atomic/volatile flag

In f2fs_ioc_start_{atomic,volatile}_write, if we failed in converting
inline data, we will report error to user, but still remain atomic/volatile
flag in inode, it will impact further writes for this file. Fix it.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/file.c

@@ -1323,6 +1323,7 @@ static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
 static int f2fs_ioc_start_atomic_write(struct file *filp)
 {
 	struct inode *inode = file_inode(filp);
+	int ret;
 
 	if (!inode_owner_or_capable(inode))
 		return -EACCES;
@@ -1332,9 +1333,12 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
 	if (f2fs_is_atomic_file(inode))
 		return 0;
 
-	set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+	ret = f2fs_convert_inline_inode(inode);
+	if (ret)
+		return ret;
 
-	return f2fs_convert_inline_inode(inode);
+	set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+	return 0;
 }
 
 static int f2fs_ioc_commit_atomic_write(struct file *filp)
@@ -1365,6 +1369,7 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
 static int f2fs_ioc_start_volatile_write(struct file *filp)
 {
 	struct inode *inode = file_inode(filp);
+	int ret;
 
 	if (!inode_owner_or_capable(inode))
 		return -EACCES;
@@ -1372,9 +1377,12 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
 	if (f2fs_is_volatile_file(inode))
 		return 0;
 
-	set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+	ret = f2fs_convert_inline_inode(inode);
+	if (ret)
+		return ret;
 
-	return f2fs_convert_inline_inode(inode);
+	set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+	return 0;
 }
 
 static int f2fs_ioc_release_volatile_write(struct file *filp)