[PATCH] uml: use host AIO support
This patch makes UML use host AIO support when it (and
/usr/include/linux/aio_abi.h) are present. This is only the support, with no
consumers - a consumer is coming in the next patch.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 4ddf540..351d969 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -3,11 +3,15 @@
# Licensed under the GPL
#
-obj-y = elf_aux.o file.o process.o signal.o time.o tty.o user_syms.o drivers/ \
- sys-$(SUBARCH)/
+obj-y = aio.o elf_aux.o file.o process.o signal.o time.o tty.o user_syms.o \
+ drivers/ sys-$(SUBARCH)/
-USER_OBJS := elf_aux.o file.o process.o signal.o time.o tty.o
+USER_OBJS := aio.o elf_aux.o file.o process.o signal.o time.o tty.o
CFLAGS_user_syms.o += -DSUBARCH_$(SUBARCH)
+HAVE_AIO_ABI := $(shell [ -r /usr/include/linux/aio_abi.h ] && \
+ echo -DHAVE_AIO_ABI )
+CFLAGS_aio.o += $(HAVE_AIO_ABI)
+
include arch/um/scripts/Makefile.rules