hi, i have a kernel module implementing a memory mapped special device which exports a large block of memory to the process. I see that when the process calls mmap(), my routine foo_mmap() is called immediately once per page, even though the process is not actually touching the pages. I believe this happens through dev_pager_alloc().
Right now i can live with that because all the memory is allocated at module load time, but i might want to have a sparse memory region which is populated dynamically, so i was wondering if there is a way to achieve this. I see there are two other device routines, d_mmap2 and d_mmap_single, any pointer to documentation or comments on how they differ ? thanks luigi _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
