configure: don't check for madvise

madvise has been supported since before the dawn of it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

diff --git a/configure.ac b/configure.ac
index 871dc5cf12fb922895b5a4a122de8dcd137ea2d3..0194af7bf88a3b81ea90dd0b43eeaa037e45dc28 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -162,7 +162,6 @@ AC_PACKAGE_NEED_PTHREADMUTEXINIT
 AC_PACKAGE_NEED_URCU_H
 AC_PACKAGE_NEED_RCU_INIT
 
-AC_HAVE_MADVISE
 AC_HAVE_MINCORE
 AC_HAVE_FALLOCATE
 AC_HAVE_FIEMAP

diff --git a/include/builddefs.in b/include/builddefs.in
index eaf555fb3b8ce86de49c5c7418d63243b66cd4c6..df01cfed8651e15c113eceb4045aede5477fd8a4 100644 (file)
--- a/include/builddefs.in
+++ b/include/builddefs.in
@@ -90,7 +90,6 @@ ENABLE_SCRUB  = @enable_scrub@
 
 HAVE_ZIPPED_MANPAGES = @have_zipped_manpages@
 
-HAVE_MADVISE = @have_madvise@
 HAVE_MINCORE = @have_mincore@
 HAVE_FALLOCATE = @have_fallocate@
 HAVE_FIEMAP = @have_fiemap@

diff --git a/io/Makefile b/io/Makefile
index 9309f1a4ffdeb4a3462715684815abbbcd8eacb8..f01f32d1630dafc8ad13ace3a6e3f7b0750136bc 100644 (file)
--- 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
+       truncate.c utimes.c fadvise.c sendfile.c madvise.c
 
 LLDLIBS = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG) $(LIBPTHREAD) $(LIBUUID)
 LTDEPENDENCIES = $(LIBXCMD) $(LIBHANDLE) $(LIBFROG)
 LLDFLAGS = -static-libtool-libs
 
-ifeq ($(HAVE_MADVISE),yes)
-CFILES += madvise.c
-LCFLAGS += -DHAVE_MADVISE
-else
-LSRCFILES += madvise.c
-endif
-
 ifeq ($(HAVE_MINCORE),yes)
 CFILES += mincore.c
 LCFLAGS += -DHAVE_MINCORE

diff --git a/io/io.h b/io/io.h
index 56e6159b0df77266ed6512dd5d8d0742f3b0e00d..2a9ef97c30772daa473a0c7f004d8d8a63b80b4d 100644 (file)
--- a/io/io.h
+++ b/io/io.h
@@ -118,12 +118,7 @@ extern void                truncate_init(void);
 extern void            utimes_init(void);
 extern void            fadvise_init(void);
 extern void            sendfile_init(void);
-
-#ifdef HAVE_MADVISE
 extern void            madvise_init(void);
-#else
-#define madvise_init() do { } while (0)
-#endif
 
 #ifdef HAVE_MINCORE
 extern void            mincore_init(void);

diff --git a/m4/package_libcdev.m4 b/m4/package_libcdev.m4
index ef20ae41ae5861a1ed56cd6de30d226147270a1d..9586ef03d1d2dfd11d223b067fb07003b5194c33 100644 (file)
--- a/m4/package_libcdev.m4
+++ b/m4/package_libcdev.m4
@@ -1,21 +1,3 @@
-#
-# Check if we have a working madvise system call
-#
-AC_DEFUN([AC_HAVE_MADVISE],
-  [ AC_MSG_CHECKING([for madvise ])
-    AC_COMPILE_IFELSE(
-    [  AC_LANG_PROGRAM([[
-#define _GNU_SOURCE
-#include <sys/mman.h>
-       ]], [[
-posix_madvise(0, 0, MADV_NORMAL);
-       ]])
-    ], have_madvise=yes
-       AC_MSG_RESULT(yes),
-       AC_MSG_RESULT(no))
-    AC_SUBST(have_madvise)
-  ])
-
 #
 # Check if we have a working mincore system call
 #