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authorPaolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>2006-04-18 22:20:13 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-19 09:13:49 -0700
commit181ae4005d0a4010802be534d929b38c42b9ac06 (patch)
treee16e0a70cff702b11edb497eee4a4d77f27d104a /arch/um
parent8bbde0e6d52265158ee9625f383500c1a7d09ba9 (diff)
downloadop-kernel-dev-181ae4005d0a4010802be534d929b38c42b9ac06.zip
op-kernel-dev-181ae4005d0a4010802be534d929b38c42b9ac06.tar.gz
[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>
Diffstat (limited to 'arch/um')
-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 0ec4052..6ab852b 100644
--- a/arch/um/drivers/cow_user.c
+++ b/arch/um/drivers/cow_user.c
@@ -100,7 +100,7 @@ struct cow_header_v3_broken {
__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
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