On Thu, May 12, 2005 at 11:18:36PM -0400, Kyle Moffett wrote:
> 2) When forced to copy data, the copy should be done in the context of
> whatever process is doing the "write" operation, and be interruptible,
> etc. The end result is that if you union an nfs mount over another one,
> it will just seem like a write to a big file takes a _really_ long time
> to complete.
This is what happens with mini_fo, provided your kernel is preemptive.
> 3) ext2/3 should get an extra flag for files and directories that
> indicates nonresidence. This would be used by the VFS union layer to
[...]
I like the idea of copying modified data on a per block basis. This
really would avoid unnecessary long copy operations and potentially
save a lot of storage. But I think a unifying layer should not rely on
specialities such as sparse files or flags provided by the lower layer
file systems.
Markus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
