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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2006-04-10 22:53:29 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-11 06:18:35 -0700
commitcda402b283c34a24b091f78eee116963e9494762 (patch)
treea79d720e9ad5fe65b3488f10dfbaaa24cb0b9162
parent60baa1583959e8b15e2823ef9e1cc00fd7ea929c (diff)
downloadlinux-cda402b283c34a24b091f78eee116963e9494762.tar.bz2
[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 <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/um/drivers/cow_user.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c
index 61951b721268..afdf1ea0f557 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