ACK, will do. On Wed, Jan 26, 2022 at 5:45 AM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Mon, Jan 17, 2022 at 08:42:57PM -0800, Walt Drummond wrote: > > This patchset adds TTY status message request feature to the n_tty > > line dicipline. This feature prints a brief message containing basic > > system and process group information to a user's TTY in response to a > > new control character in the line dicipline (default Ctrl-T) or the > > TIOCSTAT ioctl. The message contains the current system load, the > > name and PID of an interesting process in the forground process group, > > it's run time, percent CPU usage and RSS. An example of this message > > is: > > > > load: 0.31 cmd: sleep 3616843 [sleeping] 0.36r 0.00u 0.00s 0% 696k > > > > User API visible changes are limited to: > > - The addition of VSTATUS in termios.c_cc[] > > - The addition of NOKERNINFO bit in termios.l_cflags > > - The addition of the TIOCSTAT ioctl number > > > > None of these changes break the existing kernel api as the termios > > structure on all architectures has enough space in the control > > character array (.c_cc) for the new character, and the other changes > > are space agnostic. > > > > This feature is in many other Unix-like systems, both current and > > historical. In other implementations, this feature would also send > > SIGINFO to the process group; this implementation does not. > > > > Walt Drummond (3): > > vstatus: Allow the n_tty line dicipline to write to a user tty > > vstatus: Add user space API definitions for VSTATUS, NOKERNINFO and > > TIOCSTAT > > status: Display an informational message when the VSTATUS character is > > pressed or TIOCSTAT ioctl is called. > > > > arch/alpha/include/asm/termios.h | 4 +- > > arch/alpha/include/uapi/asm/ioctls.h | 1 + > > arch/alpha/include/uapi/asm/termbits.h | 34 ++--- > > arch/ia64/include/asm/termios.h | 4 +- > > arch/ia64/include/uapi/asm/termbits.h | 34 ++--- > > arch/mips/include/asm/termios.h | 4 +- > > arch/mips/include/uapi/asm/ioctls.h | 1 + > > arch/mips/include/uapi/asm/termbits.h | 36 ++--- > > arch/parisc/include/asm/termios.h | 4 +- > > arch/parisc/include/uapi/asm/ioctls.h | 1 + > > arch/parisc/include/uapi/asm/termbits.h | 34 ++--- > > arch/powerpc/include/asm/termios.h | 4 +- > > arch/powerpc/include/uapi/asm/ioctls.h | 2 + > > arch/powerpc/include/uapi/asm/termbits.h | 34 ++--- > > arch/s390/include/asm/termios.h | 4 +- > > arch/sh/include/uapi/asm/ioctls.h | 1 + > > arch/sparc/include/uapi/asm/ioctls.h | 1 + > > arch/sparc/include/uapi/asm/termbits.h | 38 +++--- > > arch/xtensa/include/uapi/asm/ioctls.h | 1 + > > drivers/tty/Makefile | 2 +- > > drivers/tty/n_tty.c | 113 +++++++++++----- > > drivers/tty/n_tty_status.c | 162 +++++++++++++++++++++++ > > drivers/tty/tty_io.c | 2 +- > > include/asm-generic/termios.h | 4 +- > > include/linux/tty.h | 123 ++++++++--------- > > include/uapi/asm-generic/ioctls.h | 1 + > > include/uapi/asm-generic/termbits.h | 34 ++--- > > 27 files changed, 461 insertions(+), 222 deletions(-) > > create mode 100644 drivers/tty/n_tty_status.c > > > > -- > > 2.30.2 > > > > You forgot to cc: me on patch 2/3, which would be needed if I was to > take them all. > > Please fix up patch 2 and resend the whole series. > > thanks, > > greg k-h
