The patch titled
vt: do not update when the console is blanked
has been removed from the -mm tree. Its filename was
vt-do-not-update-when-the-console-is-blanked.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: vt: do not update when the console is blanked
From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
vt.c DO_UPDATE macro checks if the console is visible but doesn't check if
the console is blanked.
In fact updating fbcon while the console is blanked is not only
unnecessary but can even cause screen corruption.
Therefore I am adding a simple check on console_blanked in DO_UPDATE.
Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Cc: Krzysztof Helt <krzysztof.h1@xxxxxxxxx>
Cc: "Antonino A. Daplas" <adaplas@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/char/vt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/char/vt.c~vt-do-not-update-when-the-console-is-blanked drivers/char/vt.c
--- a/drivers/char/vt.c~vt-do-not-update-when-the-console-is-blanked
+++ a/drivers/char/vt.c
@@ -261,7 +261,7 @@ static void notify_update(struct vc_data
#ifdef VT_BUF_VRAM_ONLY
#define DO_UPDATE(vc) 0
#else
-#define DO_UPDATE(vc) CON_IS_VISIBLE(vc)
+#define DO_UPDATE(vc) (CON_IS_VISIBLE(vc) && !console_blanked)
#endif
static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed)
_
Patches currently in -mm which might be from stefano.stabellini@xxxxxxxxxxxxx are
origin.patch
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