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[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>
hifive-unleashed-5.1
Paolo 'Blaisorblade' Giarrusso 2006-04-10 22:53:29 -07:00 committed by Linus Torvalds
parent 60baa15839
commit cda402b283
1 changed files with 1 additions and 1 deletions
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2
arch/um/drivers/cow_user.c
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@ -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