[PATCH] uml: Get rid of uneccessary hostfs build trick

Get rid of the grepping for __st_ino in hostfs, since it doesn't work on
x86_64 (the grep finds it, but it is ifdefed out), and Al says it's
unnecessary anyway.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/hostfs/Makefile

@@ -3,13 +3,6 @@
 # Licensed under the GPL
 #
 
-# struct stat64 changed the inode field name between 2.2 and 2.4 from st_ino
-# to __st_ino.  It stayed in the same place, so as long as the correct name
-# is used, hostfs compiled on 2.2 should work on 2.4 and vice versa.
-
-STAT64_INO_FIELD := $(shell grep -q __st_ino /usr/include/bits/stat.h && \
-				echo __)st_ino
-
 hostfs-objs := hostfs_kern.o hostfs_user.o
 
 obj-y =
@@ -20,7 +13,5 @@ SINGLE_OBJS = $(foreach f,$(patsubst %.o,%,$(obj-y) $(obj-m)),$($(f)-objs))
 USER_OBJS := $(filter %_user.o,$(obj-y) $(obj-m) $(SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 
-USER_CFLAGS += -DSTAT64_INO_FIELD=$(STAT64_INO_FIELD)
-
 $(USER_OBJS) : %.o: %.c
 	$(CC) $(CFLAGS_$(notdir $@)) $(USER_CFLAGS) -c -o $@ $<

fs/hostfs/hostfs_user.c

@@ -28,10 +28,7 @@ int stat_file(const char *path, unsigned long long *inode_out, int *mode_out,
 	if(lstat64(path, &buf) < 0)
 		return(-errno);
 
-	/* See the Makefile for why STAT64_INO_FIELD is passed in
-	 * by the build
-	 */
-	if(inode_out != NULL) *inode_out = buf.STAT64_INO_FIELD;
+	if(inode_out != NULL) *inode_out = buf.st_ino;
 	if(mode_out != NULL) *mode_out = buf.st_mode;
 	if(nlink_out != NULL) *nlink_out = buf.st_nlink;
 	if(uid_out != NULL) *uid_out = buf.st_uid;