linux-kernel - [PATCH 3/3] f2fs: support clone_file

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Date:	Sat, 16 Jul 2016 23:24:27 -0700
From:	Jaegeuk Kim <jaegeuk@...nel.org>
To:	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net
Cc:	Jaegeuk Kim <jaegeuk@...nel.org>
Subject: [PATCH 3/3] f2fs: support clone_file_range

This patch implements clone_file_range in f2fs.

Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/file.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c2b7e35..37480f3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2312,6 +2312,12 @@ ssize_t f2fs_copy_file_range(struct file *file_in, loff_t pos_in,
 	return ret;
 }
 
+int f2fs_clone_file_range(struct file *file_in, loff_t pos_in,
+		struct file *file_out, loff_t pos_out, u64 len)
+{
+	return f2fs_clone_files(file_in, pos_in, file_out, pos_out, len);
+}
+
 #ifdef CONFIG_COMPAT
 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
@@ -2359,6 +2365,7 @@ const struct file_operations f2fs_file_operations = {
 	.compat_ioctl	= f2fs_compat_ioctl,
 #endif
 	.copy_file_range = f2fs_copy_file_range,
+	.clone_file_range = f2fs_clone_file_range,
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= iter_file_splice_write,
 };
-- 
2.8.3