On Wed, 2014-06-25 at 15:23 +0200, Thomas Knauth wrote: > On Wed, Jun 25, 2014 at 11:56 AM, Artem Bityutskiy <dedekind1@xxxxxxxxx> wrote: > > Thanks for the answer, although you forgot to comment on the question > > about possibly extending the new interface to work with file ranges in > > the future. For example, I have a 2 TiB file, and I am only interested > > in dropping caches for the first couple of gigabytes. Would I extend > > your interface, or would I come up with another one? > > Ah, didn't quite understand what was meant with file ranges. Again, we > had not considered this so far. I guess you could make a distinction > between directories and files here. If the path points to a file, you > can have an optional argument indicating the range of bytes you would > like to drop. Something like > > echo "my-file 0-1000,8000-1000" > /proc/sys/vm/sdrop_cache > > If this is desirable, we can add it to the patch. No, I do not ask to implement this, just trying to understand how the interface could possibly be extended. -- Best Regards, Artem Bityutskiy -- 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
