b=15870

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index 9068b9d..a7aa446 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -877,6 +877,19 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+# LC_SYMVERFILE
+# SLES 9 uses a different name for this file - unsure about vanilla kernels
+# around this version, but it matters for servers only.
+AC_DEFUN([LC_SYMVERFILE],
+         [AC_MSG_CHECKING([name of symverfile])
+          if grep -q Modules.symvers $LINUX/scripts/Makefile.modpost ; then
+              SYMVERFILE=Modules.symvers
+          else
+              SYMVERFILE=Module.symvers
+          fi
+         AC_MSG_RESULT($SYMVERFILE)
+          AC_SUBST(SYMVERFILE)])
+
 # LC_DQUOTOFF_MUTEX
 # after 2.6.17 dquote use mutex instead if semaphore
 AC_DEFUN([LC_DQUOTOFF_MUTEX],
@@ -1432,6 +1445,22 @@ LB_LINUX_TRY_COMPILE([
 ])
 ])
 
+#
+# check for FS_RENAME_DOES_D_MOVE flag
+#
+AC_DEFUN([LC_FS_RENAME_DOES_D_MOVE],
+[AC_MSG_CHECKING([if kernel has FS_RENAME_DOES_D_MOVE flag])
+LB_LINUX_TRY_COMPILE([
+        #include <linux/fs.h>
+],[
+        int v = FS_RENAME_DOES_D_MOVE;
+],[
+        AC_MSG_RESULT([yes])
+        AC_DEFINE(HAVE_FS_RENAME_DOES_D_MOVE, 1, [kernel has FS_RENAME_DOES_D_MOVE flag])
+],[
+        AC_MSG_RESULT([no])
+])
+])
 
 #
 # LC_PROG_LINUX
@@ -1507,6 +1536,9 @@ AC_DEFUN([LC_PROG_LINUX],
          # 2.6.15
          LC_INODE_I_MUTEX
 
+          # SLES 10 (at least)
+          LC_SYMVERFILE
+
          # 2.6.17
          LC_DQUOTOFF_MUTEX
 
@@ -1536,6 +1568,7 @@ AC_DEFUN([LC_PROG_LINUX],
         # 2.6.22
          LC_INVALIDATE_BDEV_2ARG
          LC_ASYNC_BLOCK_CIPHER
+         LC_FS_RENAME_DOES_D_MOVE
          # 2.6.23
          LC_UNREGISTER_BLKDEV_RETURN_INT
          LC_KERNEL_SPLICE_READ