When VT_DISALLOCATE is used on a vt, user space waiting with poll() on the corresponding /dev/vcs device is not awakened. This is now fixed by returning POLLHUP|POLLERR to user space. Also, in the normal screen update case, we don't set POLLERR anymore as POLLPRI alone is a much more logical response in a non-error situation, saving some confusion on the user space side. The only known user app making use of poll() on /dev/vcs* is BRLTTY which is known to cope with that change already, so the risk of breakage is pretty much nonexistent. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
---|---|---|
.. | ||
.gitignore | ||
consolemap.c | ||
cp437.uni | ||
defkeymap.c_shipped | ||
defkeymap.map | ||
keyboard.c | ||
Makefile | ||
selection.c | ||
vc_screen.c | ||
vt_ioctl.c | ||
vt.c |