> On Aug 5, 2015, at 05:18, Dave Hansen wrote:
>
> On 08/03/2015 08:37 PM, yalin wang wrote:
>> This change kcore_read() to use __copy_from_user_inatomic() to
>> copy data from kernel address, because kern_addr_valid() just make sure
>> page table is valid during call it, whne it return, the
> On Aug 5, 2015, at 06:38, Andrew Morton wrote:
>
> On Tue, 4 Aug 2015 11:37:57 +0800 yalin wang wrote:
>
>> This change kcore_read() to use __copy_from_user_inatomic() to
>> copy data from kernel address, because kern_addr_valid() just make sure
>> page table is valid during call it, whne
On Tue, 4 Aug 2015 11:37:57 +0800 yalin wang wrote:
> This change kcore_read() to use __copy_from_user_inatomic() to
> copy data from kernel address, because kern_addr_valid() just make sure
> page table is valid during call it, whne it return, the page table may
> change, for example, like
On 08/03/2015 08:37 PM, yalin wang wrote:
> This change kcore_read() to use __copy_from_user_inatomic() to
> copy data from kernel address, because kern_addr_valid() just make sure
> page table is valid during call it, whne it return, the page table may
> change, for example, like set_fixmap()
On Aug 5, 2015, at 05:18, Dave Hansen d...@sr71.net wrote:
On 08/03/2015 08:37 PM, yalin wang wrote:
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
page table is valid during call it, whne it return,
On Tue, 4 Aug 2015 11:37:57 +0800 yalin wang yalin.wang2...@gmail.com wrote:
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
page table is valid during call it, whne it return, the page table may
change,
On Aug 5, 2015, at 06:38, Andrew Morton a...@linux-foundation.org wrote:
On Tue, 4 Aug 2015 11:37:57 +0800 yalin wang yalin.wang2...@gmail.com wrote:
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
On 08/03/2015 08:37 PM, yalin wang wrote:
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
page table is valid during call it, whne it return, the page table may
change, for example, like set_fixmap()
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
page table is valid during call it, whne it return, the page table may
change, for example, like set_fixmap() function will change kernel page
table, then maybe
This change kcore_read() to use __copy_from_user_inatomic() to
copy data from kernel address, because kern_addr_valid() just make sure
page table is valid during call it, whne it return, the page table may
change, for example, like set_fixmap() function will change kernel page
table, then maybe
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