From: Rafael J. Wysocki Date: Fri, 31 Mar 2006 10:30:58 +0000 (-0800) Subject: [PATCH] vt: add TIOCL_GETKMSGREDIRECT X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0ca07731e495584bd84dca15a0f065470d594ec4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [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 Acked-by: Pavel Machek Cc: Michael Kerrisk Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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 */