[PATCH 13/26] configure: don't check for fiemap

[Christoph Hellwig <hch@xxxxxx>]

fiemap has been supported since Linux 2.6.28.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 configure.ac          |  1 -
 include/builddefs.in  |  1 -
 io/Makefile           |  9 +--------
 io/io.h               |  5 -----
 m4/package_libcdev.m4 | 21 ---------------------
 5 files changed, 1 insertion(+), 36 deletions(-)

diff --git a/configure.ac b/configure.ac
index 3a708c359..2650b7111 100644
--- a/configure.ac
+++ b/configure.ac
@@ -163,7 +163,6 @@ AC_PACKAGE_NEED_URCU_H
 AC_PACKAGE_NEED_RCU_INIT
 
 AC_HAVE_FALLOCATE
-AC_HAVE_FIEMAP
 AC_HAVE_PWRITEV2
 AC_HAVE_PREADV
 AC_HAVE_COPY_FILE_RANGE
diff --git a/include/builddefs.in b/include/builddefs.in
index 353a03d18..a5408014d 100644
--- a/include/builddefs.in
+++ b/include/builddefs.in
@@ -91,7 +91,6 @@ ENABLE_SCRUB	= @enable_scrub@
 HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@
 
 HAVE_FALLOCATE = @have_fallocate@
-HAVE_FIEMAP = @have_fiemap@
 HAVE_PREADV = @have_preadv@
 HAVE_PWRITEV2 = @have_pwritev2@
 HAVE_COPY_FILE_RANGE = @have_copy_file_range@
diff --git a/io/Makefile b/io/Makefile
index f480272ae..2271389f5 100644
--- a/io/Makefile
+++ b/io/Makefile
@@ -13,19 +13,12 @@ CFILES = init.c \
 	file.c freeze.c fsuuid.c fsync.c getrusage.c imap.c inject.c label.c \
 	link.c mmap.c open.c parent.c pread.c prealloc.c pwrite.c reflink.c \
 	resblks.c scrub.c seek.c shutdown.c stat.c swapext.c sync.c \
-	truncate.c utimes.c fadvise.c sendfile.c madvise.c mincore.c
+	truncate.c utimes.c fadvise.c sendfile.c madvise.c mincore.c fiemap.c
 
 LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG) $(LIBPTHREAD) $(LIBUUID)
 LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG)
 LLDFLAGS = -static-libtool-libs
 
-ifeq ($(HAVE_FIEMAP),yes)
-CFILES += fiemap.c
-LCFLAGS += -DHAVE_FIEMAP
-else
-LSRCFILES += fiemap.c
-endif
-
 ifeq ($(HAVE_COPY_FILE_RANGE),yes)
 CFILES += copy_file_range.c
 LCFLAGS += -DHAVE_COPY_FILE_RANGE
diff --git a/io/io.h b/io/io.h
index 9c056efb5..982d37c38 100644
--- a/io/io.h
+++ b/io/io.h
@@ -120,12 +120,7 @@ extern void		fadvise_init(void);
 extern void		sendfile_init(void);
 extern void		madvise_init(void);
 extern void		mincore_init(void);
-
-#ifdef HAVE_FIEMAP
 extern void		fiemap_init(void);
-#else
-#define fiemap_init()	do { } while (0)
-#endif
 
 #ifdef HAVE_COPY_FILE_RANGE
 extern void		copy_range_init(void);
diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4
index 87c294b24..93daf3640 100644
--- a/m4/package_libcdev.m4
+++ b/m4/package_libcdev.m4
@@ -17,27 +17,6 @@ fallocate(0, 0, 0, 0);
     AC_SUBST(have_fallocate)
   ])
 
-#
-# Check if we have the fiemap ioctl (Linux)
-#
-AC_DEFUN([AC_HAVE_FIEMAP],
-  [ AC_MSG_CHECKING([for fiemap])
-    AC_LINK_IFELSE(
-    [	AC_LANG_PROGRAM([[
-#define _GNU_SOURCE
-#include <linux/fs.h>
-#include <linux/fiemap.h>
-#include <sys/ioctl.h>
-	]], [[
-struct fiemap *fiemap;
-ioctl(0, FS_IOC_FIEMAP, (unsigned long)fiemap);
-	]])
-    ], have_fiemap=yes
-       AC_MSG_RESULT(yes),
-       AC_MSG_RESULT(no))
-    AC_SUBST(have_fiemap)
-  ])
-
 #
 # Check if we have a preadv libc call (Linux)
 #
-- 
2.39.2