Yes, current->mm points to user space context for the current process.
Now for a kernel threads there is no user space context and for them
current->mm would be NULL.
Thanks,
Chetan Nanda
On Fri, Nov 15, 2013 at 9:54 PM, Paul Davies C wrote:
> Hi,
> I happen to find this code snippet in th
On Fri, Nov 15, 2013 at 6:24 PM, Paul Davies C wrote:
> Hi,
> I happen to find this code snippet in the kernel source :
>
> struct mm_struct *mm=current->mm;
>
> /* some other code */
>
> if(mm){ /*<==Why is this here? */
> /*read the contents by locking*/
> }
>
> The i
Hi,
I happen to find this code snippet in the kernel source :
**/*struct mm_struct *mm=current->mm**;**
**
/* some other code */
**if(mm){ /*<==Why is **this here? */**
**/*read the contents by locking*/**
**}
*/The/if /checks whether the mm_struct of the current process
