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| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2006-04-10 22:54:28 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 06:18:45 -0700 |
| commit | 5ac90c9f78953b1a2ac937cc5a2f90c3521a710e (patch) | |
| tree | 4358f489334f856690ef4a451c433829352daf19 | |
| parent | 7ad04b0d0ebed1844522dd83cca0ef838d1ac673 (diff) | |
| download | linux-5ac90c9f78953b1a2ac937cc5a2f90c3521a710e.tar.gz linux-5ac90c9f78953b1a2ac937cc5a2f90c3521a710e.tar.bz2 linux-5ac90c9f78953b1a2ac937cc5a2f90c3521a710e.zip | |
[PATCH] module support: record in vermagic ability to unload a module
An UML user reported (against 2.6.13.3/UML) he got kernel Oopses when
trying to rmmod (on a kernel with module unloading enabled) a module
compiled with module unloading disabled. As crashing is a very correct
thing to do in that case, a solution is altering the vermagic string to
include this too.
Possibly, however, the code should not crash in this case, even if the
module didn't support unloading - it should simply abort the module
removal. In this case, fixing that bug would be a better solution. I've
not investigated though.
(akpm: a bit marginal - root screwed up and shot himself in the foot).
Cc: Hayim Shaul <hayim@post.tau.ac.il>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/vermagic.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h index fadc535e2925..dc7c621e4647 100644 --- a/include/linux/vermagic.h +++ b/include/linux/vermagic.h @@ -12,6 +12,11 @@ #else #define MODULE_VERMAGIC_PREEMPT "" #endif +#ifdef CONFIG_MODULE_UNLOAD +#define MODULE_VERMAGIC_MODULE_UNLOAD "mod_unload " +#else +#define MODULE_VERMAGIC_MODULE_UNLOAD "" +#endif #ifndef MODULE_ARCH_VERMAGIC #define MODULE_ARCH_VERMAGIC "" #endif @@ -19,5 +24,5 @@ #define VERMAGIC_STRING \ UTS_RELEASE " " \ MODULE_VERMAGIC_SMP MODULE_VERMAGIC_PREEMPT \ - MODULE_ARCH_VERMAGIC \ + MODULE_VERMAGIC_MODULE_UNLOAD MODULE_ARCH_VERMAGIC \ "gcc-" __stringify(__GNUC__) "." __stringify(__GNUC_MINOR__) |