On Tue, 21 Oct 2008, steve@xxxxxxxxxx wrote: > No, I guess it might be possible, but for the time being it is > its own "glock" plus the page lock dependency. I'd have to > think quite hard about what the consequences of using the > inode lock would be. > > Of course we do demand the inode lock as well in some cases > since the vfs has already grabbed it before calling > into the filesystem when its required. Because of that and > where we run the glock state machine from, it would be rather > complicated to make that work I suspect, BTW, why do you want strict coherency for memory mappings? It's not something POSIX mandates. It's not even something that Linux always did. If I were an application writer, I'd never try to rely on mmap coherency without the appropriate magic msync() calls. Miklos -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
