svn commit: samba r22097 - in branches: SAMBA_3_0/source SAMBA_3_0_25/source

[jra at samba.org]

Author: jra
Date: 2007-04-06 01:09:19 +0000 (Fri, 06 Apr 2007)
New Revision: 22097

WebSVN: http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=22097

Log:
Add detection for linux readahead() syscall.
Jeremy.

Modified:
   branches/SAMBA_3_0/source/configure.in
   branches/SAMBA_3_0_25/source/configure.in


Changeset:
Modified: branches/SAMBA_3_0/source/configure.in
===================================================================
--- branches/SAMBA_3_0/source/configure.in	2007-04-05 23:56:10 UTC (rev 22096)
+++ branches/SAMBA_3_0/source/configure.in	2007-04-06 01:09:19 UTC (rev 22097)
@@ -5649,7 +5649,26 @@
   AC_MSG_RESULT(yes)
 )
 
+############################################
+# See if we have the Linux readahead syscall.
 
+AC_CACHE_CHECK([for Linux readahead],
+                samba_cv_HAVE_LINUX_READAHEAD,[
+    AC_TRY_LINK([
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+#include <fcntl.h>],
+    [ssize_t err = readahead(0,0,0x80000);],
+    samba_cv_HAVE_LINUX_READAHEAD=yes,
+    samba_cv_HAVE_LINUX_READAHEAD=no)])
+
+if test x"$samba_cv_HAVE_LINUX_READAHEAD" = x"yes"; then
+  AC_DEFINE(HAVE_LINUX_READAHEAD,1,
+             [Whether Linux readahead is available])
+fi
+
+
 #################################################
 # Check whether winbind is supported on this platform.  If so we need to
 # build and install client programs, sbin programs and shared libraries

Modified: branches/SAMBA_3_0_25/source/configure.in
===================================================================
--- branches/SAMBA_3_0_25/source/configure.in	2007-04-05 23:56:10 UTC (rev 22096)
+++ branches/SAMBA_3_0_25/source/configure.in	2007-04-06 01:09:19 UTC (rev 22097)
@@ -5614,7 +5614,26 @@
   AC_MSG_RESULT(yes)
 )
 
+############################################
+# See if we have the Linux readahead syscall.
 
+AC_CACHE_CHECK([for Linux readahead],
+                samba_cv_HAVE_LINUX_READAHEAD,[
+    AC_TRY_LINK([
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+#include <fcntl.h>],
+    [ssize_t err = readahead(0,0,0x80000);],
+    samba_cv_HAVE_LINUX_READAHEAD=yes,
+    samba_cv_HAVE_LINUX_READAHEAD=no)])
+
+if test x"$samba_cv_HAVE_LINUX_READAHEAD" = x"yes"; then
+  AC_DEFINE(HAVE_LINUX_READAHEAD,1,
+             [Whether Linux readahead is available])
+fi
+
+
 #################################################
 # Check whether winbind is supported on this platform.  If so we need to
 # build and install client programs, sbin programs and shared libraries