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authorSachin Prabhu <sprabhu@redhat.com>2017-04-04 02:12:04 -0500
committerSteve French <smfrench@gmail.com>2017-04-07 08:04:40 -0500
commit312bbc5946c4b73dfc1d64c1dd5b0f9df8016587 (patch)
treebc480bb07a4754818f1f72a39c3ad6d498c3a450 /fs/cifs/ioctl.c
parent38bd49064a1ecb67baad33598e3d824448ab11ec (diff)
downloadlinux-312bbc5946c4b73dfc1d64c1dd5b0f9df8016587.tar.gz
SMB3: Rename clone_range to copychunk_range
Server side copy is one of the most important mechanisms smb2/smb3
supports and it was unintentionally disabled for most use cases.

Renaming calls to reflect the underlying smb2 ioctl called. This is
similar to the name duplicate_extents used for a similar ioctl which is
also used to duplicate files by reusing fs blocks. The name change is to
avoid confusion.

Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/ioctl.c')
-rw-r--r--fs/cifs/ioctl.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 001528781b6b..9bf0f94fae63 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -34,7 +34,7 @@
 #include "cifs_ioctl.h"
 #include <linux/btrfs.h>
 
-static int cifs_file_clone_range(unsigned int xid, struct file *src_file,
+static int cifs_file_copychunk_range(unsigned int xid, struct file *src_file,
 			  struct file *dst_file)
 {
 	struct inode *src_inode = file_inode(src_file);
@@ -45,7 +45,7 @@ static int cifs_file_clone_range(unsigned int xid, struct file *src_file,
 	struct cifs_tcon *target_tcon;
 	int rc;
 
-	cifs_dbg(FYI, "ioctl clone range\n");
+	cifs_dbg(FYI, "ioctl copychunk range\n");
 
 	if (!src_file->private_data || !dst_file->private_data) {
 		rc = -EBADF;
@@ -75,8 +75,8 @@ static int cifs_file_clone_range(unsigned int xid, struct file *src_file,
 	/* should we flush first and last page first */
 	truncate_inode_pages(&target_inode->i_data, 0);
 
-	if (target_tcon->ses->server->ops->clone_range)
-		rc = target_tcon->ses->server->ops->clone_range(xid,
+	if (target_tcon->ses->server->ops->copychunk_range)
+		rc = target_tcon->ses->server->ops->copychunk_range(xid,
 			smb_file_src, smb_file_target, 0, src_inode->i_size, 0);
 	else
 		rc = -EOPNOTSUPP;
@@ -91,14 +91,14 @@ out:
 	return rc;
 }
 
-static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
+static long cifs_ioctl_copychunk(unsigned int xid, struct file *dst_file,
 			unsigned long srcfd)
 {
 	int rc;
 	struct fd src_file;
 	struct inode *src_inode;
 
-	cifs_dbg(FYI, "ioctl clone range\n");
+	cifs_dbg(FYI, "ioctl copychunk range\n");
 	/* the destination must be opened for writing */
 	if (!(dst_file->f_mode & FMODE_WRITE)) {
 		cifs_dbg(FYI, "file target not open for write\n");
@@ -129,7 +129,7 @@ static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
 	if (S_ISDIR(src_inode->i_mode))
 		goto out_fput;
 
-	rc = cifs_file_clone_range(xid, src_file.file, dst_file);
+	rc = cifs_file_copychunk_range(xid, src_file.file, dst_file);
 
 out_fput:
 	fdput(src_file);
@@ -251,7 +251,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 			}
 			break;
 		case CIFS_IOC_COPYCHUNK_FILE:
-			rc = cifs_ioctl_clone(xid, filep, arg);
+			rc = cifs_ioctl_copychunk(xid, filep, arg);
 			break;
 		case CIFS_IOC_SET_INTEGRITY:
 			if (pSMBFile == NULL)