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authorRafael J. Wysocki <rjw@sisk.pl>2006-03-31 02:30:58 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-31 12:18:56 -0800
commit0ca07731e495584bd84dca15a0f065470d594ec4 (patch)
treed043e8b64b43361051e1e6b40ee37382591825df
parentd32af0fe11b1618572389723e93cf33a4cc11c81 (diff)
[PATCH] vt: add TIOCL_GETKMSGREDIRECT
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> Acked-by: Pavel Machek <pavel@suse.cz> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--drivers/char/vt.c4
-rw-r--r--include/linux/tiocl.h1
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index ca4844c527da..acc5d47844eb 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -2328,6 +2328,10 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
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;
diff --git a/include/linux/tiocl.h b/include/linux/tiocl.h
index 2c9e847f6ed1..4756862c4ed4 100644
--- a/include/linux/tiocl.h
+++ b/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 */