[PATCH] um: mark both consoles as CON_ANYTIME

Since both UML consoles do not use percpu variables, they may be called when
the cpu is still offline, and they may be marked CON_ANYTIME (this is
documented in kernel/printk.c, grep for CON_ANYTIME to find mentions of this).

Works well in testing done with lock debug enabled, should be safe but is not
needed for next release.

This would probably help also stderr_console.c, but this is yet to test.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/um/drivers/ssl.c b/arch/um/drivers/ssl.c
index fc22b9b..4b382a6 100644 (file)
--- a/arch/um/drivers/ssl.c
+++ b/arch/um/drivers/ssl.c
@@ -179,7 +179,7 @@ static struct console ssl_cons = {
        .write          = ssl_console_write,
        .device         = ssl_console_device,
        .setup          = ssl_console_setup,
-       .flags          = CON_PRINTBUFFER,
+       .flags          = CON_PRINTBUFFER|CON_ANYTIME,
        .index          = -1,
 };
 

diff --git a/arch/um/drivers/stdio_console.c b/arch/um/drivers/stdio_console.c
index 7ff0b0f..76d1f1c 100644 (file)
--- a/arch/um/drivers/stdio_console.c
+++ b/arch/um/drivers/stdio_console.c
@@ -153,7 +153,7 @@ static struct console stdiocons = {
        .write          = uml_console_write,
        .device         = uml_console_device,
        .setup          = uml_console_setup,
-       .flags          = CON_PRINTBUFFER,
+       .flags          = CON_PRINTBUFFER|CON_ANYTIME,
        .index          = -1,
 };