From cda402b283c34a24b091f78eee116963e9494762 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Mon, 10 Apr 2006 22:53:29 -0700 Subject: [PATCH] [PATCH] uml: make 64-bit COW files compatible with 32-bit ones This is the minimal fix to make 64-bit UML binaries create 32-bit compatible COW files and read them. I've indeed tested that current code doesn't do this - the code gets SIGFPE for a division by a value read at the wrong place, where 0 is found. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Cc: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/drivers/cow_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c index 61951b7212..afdf1ea0f5 100644 --- a/arch/um/drivers/cow_user.c +++ b/arch/um/drivers/cow_user.c @@ -75,7 +75,7 @@ struct cow_header_v3 { __u32 alignment; __u32 cow_format; char backing_file[PATH_LEN_V3]; -}; +} __attribute__((packed)); /* COW format definitions - for now, we have only the usual COW bitmap */ #define COW_BITMAP 0 -- 2.39.5