>> I am developing a user space program which interacts with "file system"
https://www.kernel.org/doc/htmldocs/filesystems/index.html
> and "cryptography"
https://www.kernel.org/doc/htmldocs/crypto-API/index.html
The best documentation IS right there in the kernel source :)
__
I'm a little confused about the whole page table bit, since (according to
my limited knowledge) that would mean managing page attributes and playing
nice with the MMU. Although I think I understand what you meant by the
rest. I believe kmalloc internally uses the slab allocator to bunch up
memory i
Hi all,
I'm trying to migrate a driver from board files to device tree. I've
added the gpios to device tree. My device is loaded automatically,
this is nice, but I'm facing problems while getting gpio from device
tree using of_get_property().
Here is the device tree node:
powerfailure {
On 15-08-20 19:36:23, Jeff Haran wrote:
> > -Original Message-
> > From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> > Sent: Thursday, August 20, 2015 12:16 PM
> > To: Jeff Haran
> > Cc: Woody Wu; John de la Garza; kernelnewbies
> > Subject: Re: msleep() in interrupt handler?
> -Original Message-
> From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> Sent: Thursday, August 20, 2015 12:16 PM
> To: Jeff Haran
> Cc: Woody Wu; John de la Garza; kernelnewbies
> Subject: Re: msleep() in interrupt handler?
>
> On 15-08-20 18:16:02, Jeff Haran wrote:
> > >
On 15-08-20 18:16:02, Jeff Haran wrote:
> > -Original Message-
> > From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> > Sent: Thursday, August 20, 2015 10:50 AM
> > To: Jeff Haran
> > Cc: Woody Wu; John de la Garza; kernelnewbies
> > Subject: Re: msleep() in interrupt handler?
> -Original Message-
> From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> Sent: Thursday, August 20, 2015 10:50 AM
> To: Jeff Haran
> Cc: Woody Wu; John de la Garza; kernelnewbies
> Subject: Re: msleep() in interrupt handler?
>
> On 15-08-20 16:54:26, Jeff Haran wrote:
> > >
On 15-08-20 16:54:26, Jeff Haran wrote:
> > -Original Message-
> > From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> > Sent: Thursday, August 20, 2015 9:42 AM
> > To: Woody Wu
> > Cc: John de la Garza; Jeff Haran; kernelnewbies
> > Subject: Re: msleep() in interrupt handler?
after I tracing softirq flow in ARM platform, I have some colusion like below:
1. softirq is running at the end of any irq context, when irq is eabled.
2. as long as any Hard irq happen, softirq can be interrupt and reentrant
My question are:
1. in __do_sofiq, there is a jiffies setting to make su
> -Original Message-
> From: victorascr...@gmail.com [mailto:victorascr...@gmail.com]
> Sent: Thursday, August 20, 2015 9:42 AM
> To: Woody Wu
> Cc: John de la Garza; Jeff Haran; kernelnewbies
> Subject: Re: msleep() in interrupt handler?
>
> On 15-08-20 21:44:14, Woody Wu wrote:
> > On Th
On 15-08-20 21:44:14, Woody Wu wrote:
> On Thursday, August 20, 2015, wrote:
>
> > On 15-08-20 19:02:50, Woody Wu wrote:
> > > On Thursday, August 20, 2015, John de la Garza > > wrote:
> > >
> > > > On Thu, Aug 20, 2015 at 01:45:34PM +0800, Woody Wu wrote:
> > > > > I did not see the message. A
Suppose I want to do something analogous to C++'s new in userspace. But
instead, I want an entirely new page table to be constructed at the
location of my choosing. In addition, I want a specific region for that
page table to manage, and this requires that this region no longer be
available to the
On Thursday, August 20, 2015, wrote:
> On 15-08-20 19:02:50, Woody Wu wrote:
> > On Thursday, August 20, 2015, John de la Garza > wrote:
> >
> > > On Thu, Aug 20, 2015 at 01:45:34PM +0800, Woody Wu wrote:
> > > > I did not see the message. Actually my interrupt handler is calling
> > > > i2c_tr
On 15-08-20 19:02:50, Woody Wu wrote:
> On Thursday, August 20, 2015, John de la Garza wrote:
>
> > On Thu, Aug 20, 2015 at 01:45:34PM +0800, Woody Wu wrote:
> > > I did not see the message. Actually my interrupt handler is calling
> > > i2c_transfer which in turn used msleep() somewhere in its
On Thursday, August 20, 2015, John de la Garza wrote:
> On Thu, Aug 20, 2015 at 01:45:34PM +0800, Woody Wu wrote:
> > I did not see the message. Actually my interrupt handler is calling
> > i2c_transfer which in turn used msleep() somewhere in its code. Is this
> > normal or dangerous?
>
> Can
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