• Deepa Dinamani's avatar
    signal: Add set_user_sigmask() · ded653cc
    Deepa Dinamani authored
    Refactor reading sigset from userspace and updating sigmask
    into an api.
    
    This is useful for versions of syscalls that pass in the
    sigmask and expect the current->sigmask to be changed during,
    and restored after, the execution of the syscall.
    
    With the advent of new y2038 syscalls in the subsequent patches,
    we add two more new versions of the syscalls (for pselect, ppoll,
    and io_pgetevents) in addition to the existing native and compat
    versions. Adding such an api reduces the logic that would need to
    be replicated otherwise.
    
    Note that the calls to sigprocmask() ignored the return value
    from the api as the function only returns an error on an invalid
    first argument that is hardcoded at these call sites.
    The updated logic uses set_current_blocked() instead.
    Signed-off-by: default avatarDeepa Dinamani <deepa.kernel@gmail.com>
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    ded653cc
eventpoll.c 62.5 KB