Hi, The nopage() method of a VMA is called when a page fault occurs on that VMA, and this method allows the driver being mmap()ed which page should be mapped at the fault address. Works nicely. However, how can the driver unmap some pages of a VMA, so that at the next access from userspace, a new call to the nopage() method is done ? It would allow to change the mapping of the contents of the VMA, which would be useful for drivers that needs to do temporary mappings of pages. Someone asked on the linux-kernel mailing-list in 2001 [1], but the solution [2] was not very beautiful. Is something cleaner available today ? Thanks, Thomas [1] http://www.cs.helsinki.fi/linux/linux-kernel/2001-22/0201.html [2] http://www.cs.helsinki.fi/linux/linux-kernel/2001-22/0631.html -- Thomas Petazzoni - thomas.petazzoni@xxxxxxxx http://{thomas,sos,kos}.enix.org - http://www.toulibre.org http://www.{livret,agenda}dulibre.org -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
