linux-kernel - [PATCH] early init: open /dev/console with O

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Date:   Tue, 31 Dec 2019 16:02:26 +0100
From:   Dominik Brodowski <linux@...inikbrodowski.net>
To:     torvalds@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
        youling257@...il.com
Subject: [PATCH] early init: open /dev/console with O_LARGEFILE

If force_o_largefile() is true, /dev/console used to be opened
with O_LARGEFILE. Retain that behaviour.

Fixes: 8243186f0cc7 ("fs: remove ksys_dup()")
Signed-off-by: Dominik Brodowski <linux@...inikbrodowski.net>

diff --git a/init/main.c b/init/main.c
index 1ecfd43ed464..d12777775cb0 100644
--- a/init/main.c
+++ b/init/main.c
@@ -1162,7 +1162,8 @@ void console_on_rootfs(void)
 	unsigned int i;
 
 	/* Open /dev/console in kernelspace, this should never fail */
-	file = filp_open("/dev/console", O_RDWR, 0);
+	file = filp_open("/dev/console",
+			  O_RDWR | (force_o_largefile() ? O_LARGEFILE : 0), 0);
 	if (IS_ERR(file))
 		goto err_out;