diff --git a/acinclude.m4 b/acinclude.m4
index bcf8ecf48f..6d34609ed7 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -973,6 +973,9 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
 		 AC_CHECK_LINUX_FUNC([do_sync_read],
 				     [#include <linux/fs.h>],
 				     [do_sync_read(NULL, NULL, 0, NULL);])
+		 AC_CHECK_LINUX_FUNC([file_dentry],
+				     [#include <linux/fs.h>],
+				     [struct file *f; file_dentry(f);])
 		 AC_CHECK_LINUX_FUNC([find_task_by_pid],
 				     [#include <linux/sched.h>],
 				     [pid_t p; find_task_by_pid(p);])
diff --git a/src/afs/LINUX/osi_compat.h b/src/afs/LINUX/osi_compat.h
index a25fd2ee4a..8e72161bf4 100644
--- a/src/afs/LINUX/osi_compat.h
+++ b/src/afs/LINUX/osi_compat.h
@@ -47,6 +47,10 @@ typedef struct path afs_linux_path_t;
 # endif
 #endif
 
+#ifndef HAVE_LINUX_FILE_DENTRY
+#define file_dentry(file) ((file)->f_dentry)
+#endif
+
 #if defined(HAVE_LINUX_LOCKS_LOCK_FILE_WAIT)
 # define flock_lock_file_wait locks_lock_file_wait
 #endif