From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Andrew Morton <akpm@osdl.org>
Cc: LKML <linux-kernel@vger.kernel.org>, Pavel Machek <pavel@suse.cz>
Subject: [PATCH] vt: add TIOCL_GETKMSGREDIRECT
Date: Thu, 30 Mar 2006 18:58:26 +0200 [thread overview]
Message-ID: <200603301858.26681.rjw@sisk.pl> (raw)
Add TIOCL_GETKMSGREDIRECT needed by the userland suspend tool to get
the current value of kmsg_redirect from the kernel so that it can save it and
restore it after resume.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/char/vt.c | 4 ++++
include/linux/tiocl.h | 1 +
2 files changed, 5 insertions(+)
Index: linux-2.6.16-mm1/drivers/char/vt.c
===================================================================
--- linux-2.6.16-mm1.orig/drivers/char/vt.c
+++ linux-2.6.16-mm1/drivers/char/vt.c
@@ -2328,6 +2328,10 @@ int tioclinux(struct tty_struct *tty, un
case TIOCL_SETVESABLANK:
set_vesa_blanking(p);
break;
+ case TIOCL_GETKMSGREDIRECT:
+ data = kmsg_redirect;
+ ret = __put_user(data, p);
+ break;
case TIOCL_SETKMSGREDIRECT:
if (!capable(CAP_SYS_ADMIN)) {
ret = -EPERM;
Index: linux-2.6.16-mm1/include/linux/tiocl.h
===================================================================
--- linux-2.6.16-mm1.orig/include/linux/tiocl.h
+++ linux-2.6.16-mm1/include/linux/tiocl.h
@@ -34,5 +34,6 @@ struct tiocl_selection {
#define TIOCL_SCROLLCONSOLE 13 /* scroll console */
#define TIOCL_BLANKSCREEN 14 /* keep screen blank even if a key is pressed */
#define TIOCL_BLANKEDSCREEN 15 /* return which vt was blanked */
+#define TIOCL_GETKMSGREDIRECT 17 /* get the vt the kernel messages are restricted to */
#endif /* _LINUX_TIOCL_H */
next reply other threads:[~2006-03-30 16:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-30 16:58 Rafael J. Wysocki [this message]
2006-03-29 0:40 ` [PATCH] vt: add TIOCL_GETKMSGREDIRECT Pavel Machek
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