Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
---
fs/nfs/internal.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 3e24392..dcbcffb 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -7,6 +7,7 @@
#include <linux/security.h>
#include <linux/crc32.h>
#include <linux/nfs_page.h>
+#include <linux/sunrpc/addr.h>
#define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS)
@@ -766,3 +767,12 @@ static inline bool nfs_error_is_fatal(int err)
return false;
}
}
+
+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);
+}
--
1.8.3.1
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