Resending it again ... earlier mails report an error ... On Sat, Sep 19, 2009 at 2:47 PM, Chetan Nanda <[email protected]> wrote:
> Hi, > > I have small doubt regarding copy_to_user/copy_from_user macros: > > -Can these macros be used in interrupt context.. what if page belong to > user address is not in memory (not loaded/swapped out)? > -If we use copy_to_user in interrupt context, then how can this be assure > that data is copied into correct process buffer? > As at a time of interrupt it can't be guaranteed that intended user process > is the current process running. > > These may be silly question but create some confusion for me.... > > Thanks, > Chetan Nanda >
