Hi,
I need to store some crypto keys in the kernel where each key is
related to a path on the disk. A restricted set of users can create
files on such a path but the crypto keys are shared by all such user.
I am thinking of using linux kernel key management facilities for my
project. I have a
Hi All,
Could anybody explain the following kernel code for me in detail ? I am
royally confused on it.
kernel/time/timekeeping.c
timekeeping_bigadjust()
{
/*
* Use the current error value to determine how much to look ahead.
* The larger the error the slower we
On Fri, Mar 22, 2013 at 10:41:56AM +0700, Mulyadi Santosa wrote:
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
On Fri, 22 Mar 2013 13:41:25 +0800, ishare said:
Is it needed or must to compile fs and driver with -O2 option when
compiling kernel ?
It's not strictly mandatory to use -O2 (for a while, -Os was the default). There
are a few places that for correctness, you *cannot* use -O0. For instance,
On Fri, Mar 22, 2013 at 09:55:53AM -0400, valdis.kletni...@vt.edu wrote:
On Fri, 22 Mar 2013 13:41:25 +0800, ishare said:
Is it needed or must to compile fs and driver with -O2 option when
compiling kernel ?
It's not strictly mandatory to use -O2 (for a while, -Os was the default).
On Fri, 22 Mar 2013 22:32:40 +0800, ishare said:
are a few places that for correctness, you *cannot* use -O0. For instance,
a
few places where we use builtin_return_address() inside an inline (-O0
won't inline so builtin_return_address() ends up returning a pointer to
a function when we
On Thu, Mar 21, 2013 at 8:52 PM, Mulyadi Santosa
mulyadi.sant...@gmail.com wrote:
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
I think I might split incoming requests into two heaps.
The first heap would be synchronous requests such as reads and syncs
that someone in userspace is blocking on.
The second is background I/O like writeback and readahead.
The same distinction that CFQ completely makes.
Anyway, I plan to
On Fri, 22 Mar 2013 10:52:56 -0400, valdis.kletni...@vt.edu said:
No debug information is stripped by -O2. Debug information isn't emitted if
you don't compile with -g. At one time, long ago (quite possibly literally
before you were born for some of the younger readers on the list), gcc was
On Fri, 22 Mar 2013 13:53:45 -0700, Raymond Jennings said:
The first heap would be synchronous requests such as reads and syncs
that someone in userspace is blocking on.
The second is background I/O like writeback and readahead.
The same distinction that CFQ completely makes.
Again, this
On Fri, Mar 22, 2013 at 2:20 PM, valdis.kletni...@vt.edu wrote:
On Fri, 22 Mar 2013 13:53:45 -0700, Raymond Jennings said:
The first heap would be synchronous requests such as reads and syncs
that someone in userspace is blocking on.
The second is background I/O like writeback and
Hi all,
I have been going through the Address Space in the linux and came across
two variables in the struct mm_struct and I'm a bit confused about the two:
struct mm_struct
{
..
atomic_t mm_users;
atomic_t mm_count;
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