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| author |   Nicolas Pitre <nico@fluxnic.net> | 2010-10-01 00:10:44 -0400 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-22 10:20:06 -0700 |
| commit | 432c9ed22aff641039ccd400cdabf983fabc285e (patch) | |
| tree | d4f458dfad838e93442a5ebbb3486113c8f77631 | |
| parent | vcs: add poll/fasync support (diff) | |
| download | linux-dev-432c9ed22aff641039ccd400cdabf983fabc285e.tar.xz linux-dev-432c9ed22aff641039ccd400cdabf983fabc285e.zip | |
vcs: invoke the vt update callback when /dev/vcs* is written to
A notifier chain is called whenever the vt code modifies a terminal
content, except for one case which is when the modification comes
through writes to /dev/vcs* devices. Let's add the missing notifier
invocation at the end of vcs_write() for that case too.
Signed-off-by: Nicolas Pitre <nicolas.pitre@canonical.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/char/vc_screen.c | 2 | ||||
| -rw-r--r-- | drivers/char/vt.c | 5 | ||||
| -rw-r--r-- | include/linux/selection.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c index 6f7054e1a516..273ab44cc91d 100644 --- a/drivers/char/vc_screen.c +++ b/drivers/char/vc_screen.c @@ -538,6 +538,8 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) } *ppos += written; ret = written; + if (written) + vcs_scr_updated(vc); unlock_out: release_console_sem(); diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 281aada7b4a1..a8ec48ed14d9 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -4182,6 +4182,11 @@ void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org) } } +void vcs_scr_updated(struct vc_data *vc) +{ + notify_update(vc); +} + /* * Visible symbols for modules */ diff --git a/include/linux/selection.h b/include/linux/selection.h index 8cdaa1151d2e..85193aa8c1e3 100644 --- a/include/linux/selection.h +++ b/include/linux/selection.h @@ -39,5 +39,6 @@ extern void putconsxy(struct vc_data *vc, unsigned char *p); extern u16 vcs_scr_readw(struct vc_data *vc, const u16 *org); extern void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org); +extern void vcs_scr_updated(struct vc_data *vc); #endif |