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[PATCH] uml: make 64-bit COW files compatible with 32-bit ones

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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>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2006-04-18 22:20:13 -07:00 committed by Linus Torvalds
parent 8bbde0e6d5
commit 181ae4005d
1 changed files with 1 additions and 1 deletions
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2
arch/um/drivers/cow_user.c
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@ -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