Dear Ravi, MegaTHX for Your answer! On 11 Sep 2002 at 12:52, Ravi wrote: > > > If you have to allocate memory earlier, use the bootmem allocator > > > (alloc_bootmem()). > > > > THX! If I need non-cached memory should I do something if I try to > > use the alloc_bootmem() funciton? I mean allocating memory by > > __get_free_page() I have to set PAGE_NO_CACHE bit. > > I don't think you can do it. The only place where a flag like > PAGE_NO_CACHE is useful is in the page table entry. But the bootmem > allocator is used *before* page tables are set up. Okay! I have two more questions. 1. Can I use the page I allocated by using __alloc_bootmem() function later on? Or should I free the allocated chunk as soon as the normal caching system is functional (after copying to the original content :-). 2. How can I detect if the normal memory caching method is available? TIA && Good byte! -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
