Re: kernel build error

2013-03-21 Thread Kumar amit mehta
Inline On Wed, Mar 20, 2013 at 12:07:57AM -0700, Kumar amit mehta wrote: On Tue, Mar 19, 2013 at 11:56:44PM -0700, Kumar amit mehta wrote: On Tue, Mar 19, 2013 at 09:43:11PM +0700, Mulyadi Santosa wrote: Hi ... On Tue, Mar 19, 2013 at 12:28 PM, Kumar amit mehta gmate.a...@gmail.com

Re: BFQ: simple elevator

2013-03-21 Thread Valdis . Kletnieks
On Wed, 20 Mar 2013 16:37:41 -0700, Raymond Jennings said: Hmm...Maybe a hybrid approach that allows a finite number of reverse seeks, or as I suspect deadline does a finite delay before abandoning the close stuff to march to the boonies. Maybe. Maybe not. It's going to depend on the

Re: BFQ: simple elevator

2013-03-21 Thread Raymond Jennings
On Thu, Mar 21, 2013 at 2:13 AM, valdis.kletni...@vt.edu wrote: On Wed, 20 Mar 2013 16:37:41 -0700, Raymond Jennings said: Hmm...Maybe a hybrid approach that allows a finite number of reverse seeks, or as I suspect deadline does a finite delay before abandoning the close stuff to march to

Userspace access to PCIe - SATA device memory BAR

2013-03-21 Thread John Beard
Hi, I have a PCIe - SATA bridge device, and I would like to access the I2C control registers in the PCI memory region (BAR5) - these use just two addresses in the BAR. I have tried, in userspace, to mmap() the /sys/bus/pci/devices//resource5 file and read from that, but all I get is 0xFF in

Re: kernel build error

2013-03-21 Thread Mulyadi Santosa
On Thu, Mar 21, 2013 at 1:16 PM, Kumar amit mehta gmate.a...@gmail.com wrote: boot issue. But before attaching these small files(136K and 32K respectively) and send it to the mailing list, I'd like to ask, if that's fine with you folks. maybe it's better if you upload those files somewhere,

Re: BFQ: simple elevator

2013-03-21 Thread Mulyadi Santosa
Hi On Thu, Mar 21, 2013 at 4:37 PM, Raymond Jennings shent...@gmail.com wrote: At any rate I suppose the best way to get started on this is to get a grip on the api's involved in receiving requests from above and dispatching them below. Is studying the deadline scheduler a good start or

optimization in kernel compile

2013-03-21 Thread ishare
Is it needed or must to compile fs and driver with -O2 option when compiling kernel ? thanks! ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies