Hello Cyrill, On 07/15/2014 11:54 PM, Cyrill Gorcunov wrote: > ioctl(2) > The following commands are supported: TFD_IOC_SET_TICKS to adjust > the number of the timer expirations that have occurred. > It take a pointer to nonzero 8-byte integer (uint64_t*) containing > new number of expirations. Once the number is set any waiter on > the timer is woken up. The only purpose of this command is to restore > the expirations in a sake of checkpoint/restore procedure. > It requires the kernel to be built with CONFIG_CHECKPOINT_RESTORE > support. Late... but, patch applied. Thank you. Cheers, Michael > Signed-off-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx> > CC: Michael Kerrisk <mtk.manpages@xxxxxxxxx> > CC: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > CC: Andrey Vagin <avagin@xxxxxxxxxx> > CC: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> > CC: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> > CC: linux-api@xxxxxxxxxxxxxxx > --- > man2/timerfd_create.2 | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > Index: man-pages/man2/timerfd_create.2 > =================================================================== > --- man-pages.orig/man2/timerfd_create.2 > +++ man-pages/man2/timerfd_create.2 > @@ -260,6 +260,20 @@ multiplexing APIs: > and > .BR epoll (7). > .TP > +.BR ioctl "(2)" > +The following commands are supported: > +.B TFD_IOC_SET_TICKS > +to adjust the number of the timer expirations that have occurred. > +It take a pointer to nonzero 8-byte integer > +.RI ( uint64_t *) > +containing the new number of expirations. > +Once the number is set any waiter on the timer is woken up. > +The only purpose of this command is to restore the expirations > +in a sake of checkpoint/restore procedure. > +It requires the kernel to be built with > +.BR CONFIG_CHECKPOINT_RESTORE > +support. > +.TP > .BR close (2) > When the file descriptor is no longer required it should be closed. > When all file descriptors associated with the same timer object > > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
