Extern declarations in sysctl.c should be move to their own head file, and then include them in relavant .c files. Move min_free_kbytes extern declaration to linux/mm.h Signed-off-by: Dave Young <hidave.darkstar@xxxxxxxxx> --- include/linux/mm.h | 1 + kernel/sysctl.c | 1 - 2 files changed, 1 insertion(+), 1 deletion(-) --- linux-2.6.32.orig/include/linux/mm.h 2010-02-20 14:02:25.281592573 +0800 +++ linux-2.6.32/include/linux/mm.h 2010-02-20 14:14:21.374855298 +0800 @@ -31,6 +31,7 @@ extern int page_cluster; #ifdef CONFIG_SYSCTL extern int sysctl_legacy_va_layout; +extern int min_free_kbytes; #else #define sysctl_legacy_va_layout 0 #endif --- linux-2.6.32.orig/kernel/sysctl.c 2010-02-20 14:13:08.415694935 +0800 +++ linux-2.6.32/kernel/sysctl.c 2010-02-20 14:13:28.511525875 +0800 @@ -72,7 +72,6 @@ #if defined(CONFIG_SYSCTL) /* External variables not in a header file. */ -extern int min_free_kbytes; extern int compat_log; extern int latencytop_enabled; extern int sysctl_nr_open_min, sysctl_nr_open_max; -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>