On Sun, Feb 21, 2010 at 10:26:00PM +0800, Wu Fengguang wrote: > Nikanth, > > > > > + readahead= Default readahead value for block devices. > > > > + > > > > > > I think the description should define the units (kb) and valid value > > > ranges e.g. page size to something not excessive - say 65536kb. The > > > above description is, IMO, useless without refering to the source to > > > find out this information.... > > > > > > > The parameter can be specified with/without any suffix(k/m/g) that memparse() > > helper function can accept. So it can take 1M, 1024k, 1050620. I checked other > > parameters that use memparse() to get similar values and they didn't document > > it. May be this should be described here. > > Hope this helps clarify things to user: > > + readahead=nn[KM] > + Default max readahead size for block devices. > + Range: 0; 4k - 128m Yes, that is exactly what I was thinĸing of. Thanks. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>