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Commit 432c9ed2 authored by Nicolas Pitre's avatar Nicolas Pitre Committed by Greg Kroah-Hartman
Browse files

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: default avatarNicolas Pitre <nicolas.pitre@canonical.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 47725ac7

drivers/char/vc_screen.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -538,6 +538,8 @@ vcs_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) 
	}

	}

	*ppos += written;

	*ppos += written;

	ret = written;

	ret = written;

	if (written)

		vcs_scr_updated(vc);





unlock_out:

unlock_out:

	release_console_sem();

	release_console_sem();

drivers/char/vt.c

+5 −0
Original line number Original line Diff line number Diff line
@@ -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

 *	Visible symbols for modules

 */

 */

include/linux/selection.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -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 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_writew(struct vc_data *vc, u16 val, u16 *org);

extern void vcs_scr_updated(struct vc_data *vc);





#endif
 
#endif