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authorAmerigo Wang <amwang@redhat.com>2010-03-05 13:44:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-06 11:26:46 -0800
commita52712af5a7473b9f85d8499153f4bbfe875f942 (patch)
treeca689c75666e488d57108da00a1d429305a5771b
parent76595f79d76fbe6267a51b3a866a028d150f06d4 (diff)
downloadlinux-a52712af5a7473b9f85d8499153f4bbfe875f942.tar.gz
console: limit the range of VGACON_SOFT_SCROLLBACK_SIZE
BuraphaLinux reported that we will trigger a mm warning when we CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=65536, this is because mm cann't allocate so many pages. We should limit the range of CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, don't give a user any chance to trigger that. Reported-by: BuraphaLinux Server <buraphalinuxserver@gmail.com> Tested-by: BuraphaLinux Server <buraphalinuxserver@gmail.com> Signed-off-by: WANG Cong <amwang@redhat.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/video/console/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index fc7d9bbb548..8e8f18d29d7 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -37,6 +37,7 @@ config VGACON_SOFT_SCROLLBACK
config VGACON_SOFT_SCROLLBACK_SIZE
int "Scrollback Buffer Size (in KB)"
depends on VGACON_SOFT_SCROLLBACK
+ range 1 1024
default "64"
help
Enter the amount of System RAM to allocate for the scrollback