Re: Move to unshared VMAs in NOMMU mode?

[Eric W. Biederman]

I'm just trying to digest this a little.

As I understand your description for non-shared mappings the VMAs are
per process.

For shared mappings you share in some sense the page cache.

My gut feel says just keep a vma per process of the regions the
process has and do the appropriate book keeping and all will be fine.

For shm_nattach it looks like you simply are not calling the
open/close methods on fork (because you have a shared pool of vmas).

Eric
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/