From 86b43bd0ddc5e565252cf26d9ccc94bf409a2fb5 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 15 Feb 2024 07:54:22 +0100
Subject: [PATCH] configure: don't check for fstatat

fstatat has been supported since Linux 2.6.16 and glibc 2.4.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
---
 configure.ac          |  1 -
 include/builddefs.in  |  1 -
 m4/package_libcdev.m4 | 14 --------------
 scrub/Makefile        |  4 ++--
 4 files changed, 2 insertions(+), 18 deletions(-)

diff --git a/configure.ac b/configure.ac
index b0c76d61..94a4e7ee 100644
--- a/configure.ac
+++ b/configure.ac
@@ -182,7 +182,6 @@ if test "$enable_scrub" = "yes"; then
                 AC_MSG_ERROR([libicu not found.])
         fi
 fi
-AC_HAVE_FSTATAT
 AC_HAVE_SG_IO
 AC_HAVE_HDIO_GETGEO
 AC_CONFIG_SYSTEMD_SYSTEM_UNIT_DIR
diff --git a/include/builddefs.in b/include/builddefs.in
index 2d89a41f..a6028272 100644
--- a/include/builddefs.in
+++ b/include/builddefs.in
@@ -102,7 +102,6 @@ HAVE_MALLINFO = @have_mallinfo@
 HAVE_MALLINFO2 = @have_mallinfo2@
 HAVE_LIBATTR = @have_libattr@
 HAVE_LIBICU = @have_libicu@
-HAVE_FSTATAT = @have_fstatat@
 HAVE_SG_IO = @have_sg_io@
 HAVE_HDIO_GETGEO = @have_hdio_getgeo@
 HAVE_SYSTEMD = @have_systemd@
diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4
index 46abf746..458081b9 100644
--- a/m4/package_libcdev.m4
+++ b/m4/package_libcdev.m4
@@ -177,20 +177,6 @@ test = mallinfo2();
     AC_SUBST(have_mallinfo2)
   ])
 
-#
-# Check if we have a fstatat call
-#
-AC_DEFUN([AC_HAVE_FSTATAT],
-  [ AC_CHECK_DECL([fstatat],
-       have_fstatat=yes,
-       [],
-       [#define _GNU_SOURCE
-       #include <sys/types.h>
-       #include <sys/stat.h>
-       #include <unistd.h>])
-    AC_SUBST(have_fstatat)
-  ])
-
 #
 # Check if we have the SG_IO ioctl
 #
diff --git a/scrub/Makefile b/scrub/Makefile
index c6ca3cff..dc6fadc9 100644
--- a/scrub/Makefile
+++ b/scrub/Makefile
@@ -6,11 +6,11 @@ TOPDIR = ..
 builddefs=$(TOPDIR)/include/builddefs
 include $(builddefs)
 
-SCRUB_PREREQS=$(HAVE_FSTATAT)$(HAVE_GETFSMAP)
+SCRUB_PREREQS=$(HAVE_GETFSMAP)
 
 scrub_svcname=xfs_scrub@.service
 
-ifeq ($(SCRUB_PREREQS),yesyes)
+ifeq ($(SCRUB_PREREQS),yes)
 LTCOMMAND = xfs_scrub
 INSTALL_SCRUB = install-scrub
 XFS_SCRUB_ALL_PROG = xfs_scrub_all
-- 
2.47.3