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authorChristoph Hellwig <hch@lst.de>2015-11-13 09:38:48 +0100
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-11-23 21:53:08 -0500
commit0f42a6a9b807b092841f7e1b381f8c7e80a0d86a (patch)
tree532147db78ce2c0d3e495154c08a75c3a01a89c2 /fs
parentnfs: allow intra-file CLONE (diff)
downloadlinux-dev-0f42a6a9b807b092841f7e1b381f8c7e80a0d86a.tar.xz
linux-dev-0f42a6a9b807b092841f7e1b381f8c7e80a0d86a.zip
nfs: use btrfs ioctl defintions for clone
The NFS CLONE_RANGE defintion was wrong and thus never worked. Fix this by simply using the btrfs ioctl defintion. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4file.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 61f1c1c02d06..135353074c25 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -7,6 +7,7 @@
#include <linux/file.h>
#include <linux/falloc.h>
#include <linux/nfs_fs.h>
+#include <uapi/linux/btrfs.h> /* BTRFS_IOC_CLONE/BTRFS_IOC_CLONE_RANGE */
#include "delegation.h"
#include "internal.h"
#include "iostat.h"
@@ -300,12 +301,13 @@ out_drop_write:
static long nfs42_ioctl_clone_range(struct file *dst_file, void __user *argp)
{
- struct nfs_ioctl_clone_range_args args;
+ struct btrfs_ioctl_clone_range_args args;
if (copy_from_user(&args, argp, sizeof(args)))
return -EFAULT;
- return nfs42_ioctl_clone(dst_file, args.src_fd, args.src_off, args.dst_off, args.count);
+ return nfs42_ioctl_clone(dst_file, args.src_fd, args.src_offset,
+ args.dest_offset, args.src_length);
}
#else
static long nfs42_ioctl_clone(struct file *dst_file, unsigned long srcfd,
@@ -325,9 +327,9 @@ long nfs4_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
void __user *argp = (void __user *)arg;
switch (cmd) {
- case NFS_IOC_CLONE:
+ case BTRFS_IOC_CLONE:
return nfs42_ioctl_clone(file, arg, 0, 0, 0);
- case NFS_IOC_CLONE_RANGE:
+ case BTRFS_IOC_CLONE_RANGE:
return nfs42_ioctl_clone_range(file, argp);
}