Hi Alexey,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v5.10-rc6 next-20201204]
[cannot apply to powerpc/next scottwood/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch,
On 03/12/2020 19:03, Christophe Leroy wrote:
Le 03/12/2020 à 06:47, Alexey Kardashevskiy a écrit :
When interrupted in raw_copy_from_user()/... after user memory access
is enabled, a nested handler may also access user memory (perf is
one example) and when it does so, it calls prevent_read_
On 03/12/2020 17:38, Aneesh Kumar K.V wrote:
Alexey Kardashevskiy writes:
When interrupted in raw_copy_from_user()/... after user memory access
is enabled, a nested handler may also access user memory (perf is
one example) and when it does so, it calls prevent_read_from_user()
which prevent
Le 03/12/2020 à 06:47, Alexey Kardashevskiy a écrit :
When interrupted in raw_copy_from_user()/... after user memory access
is enabled, a nested handler may also access user memory (perf is
one example) and when it does so, it calls prevent_read_from_user()
which prevents the upper handler fro
Hi Alexey,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.10-rc6 next-20201201]
[cannot apply to powerpc/next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we sug
Alexey Kardashevskiy writes:
> When interrupted in raw_copy_from_user()/... after user memory access
> is enabled, a nested handler may also access user memory (perf is
> one example) and when it does so, it calls prevent_read_from_user()
> which prevents the upper handler from accessing user mem
When interrupted in raw_copy_from_user()/... after user memory access
is enabled, a nested handler may also access user memory (perf is
one example) and when it does so, it calls prevent_read_from_user()
which prevents the upper handler from accessing user memory.
This saves/restores AMR when repl
