On Wed, 2004-03-24 at 14:49, Hubert Chan wrote: > >>>>> "Chris" == Chris Mason <[EMAIL PROTECTED]> writes: > > [...] > > Chris> - add reiserfs laptop mode support > > Can you explain what laptop mode is?
Take a look at linux/Documentation/laptop-mode.txt on any recent -mm kernel. The short description is that it allows you to force the filesytem into a mode where it doesn't flush things to disk. The risk is increased loss of data if you crash, the gain is better battery life on laptops. The docs include a sample control script and other details. The reiserfs patch is quite small, just making sure the journal honors the flush timings requested by the rest of the kernel. -chris
