From: Olga Kornievskaia <kolga@xxxxxxxxxx>
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
fs/nfs/nfs42.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/fs/nfs/nfs42.h b/fs/nfs/nfs42.h
index 19ec38f8..5abff4d 100644
--- a/fs/nfs/nfs42.h
+++ b/fs/nfs/nfs42.h
@@ -6,6 +6,7 @@
#ifndef __LINUX_FS_NFS_NFS4_2_H
#define __LINUX_FS_NFS_NFS4_2_H
+#include <linux/sunrpc/addr.h>
/*
* FIXME: four LAYOUTSTATS calls per compound at most! Do we need to support
* more? Need to consider not to pre-alloc too much for a compound.
@@ -21,4 +22,14 @@ int nfs42_proc_layoutstats_generic(struct nfs_server *,
struct nfs42_layoutstat_data *);
int nfs42_proc_clone(struct file *, struct file *, loff_t, loff_t, loff_t);
+static inline bool nfs42_files_from_same_server(struct file *in,
+ struct file *out)
+{
+ struct nfs_client *c_in = (NFS_SERVER(file_inode(in)))->nfs_client;
+ struct nfs_client *c_out = (NFS_SERVER(file_inode(out)))->nfs_client;
+
+ return rpc_cmp_addr((struct sockaddr *)&c_in->cl_addr,
+ (struct sockaddr *)&c_out->cl_addr);
+}
+
#endif /* __LINUX_FS_NFS_NFS4_2_H */
--
1.8.3.1
