Messages in this thread |  | | From | "Manfred Spraul" <> | Subject | Re: Deadlock on the mm->mmap_sem | Date | Tue, 18 Sep 2001 11:37:55 +0200 |
| |
> > IMHO modifying proc_pid_read_maps() is far simpler - I'm not aware of > > another recursive mmap_sem user. > > if that's the very only place that could be a viable option but OTOH I > like to be allowed to use recursion on the read locks as with the > spinlocks.
But shouldn't that change wait until 2.5? Especially since another huge mm change was just merged? proc_pid_read_maps contains further bugs - afaics it it could skip lines if PAGE_SIZE > 4096 and a file path is nearly 4096 bytes long. I'll post a patch to proc_pid_read_maps - modifying the rw semaphore behaviour just asks for trouble.
-- Manfred
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |