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27 March 2024, 02:37:15 UTC
Revision 0145058c3d30b4319d747f64caa16a9cb15f0581 authored by Catalin Marinas on 16 January 2015, 13:56:38 UTC, committed by Will Deacon on 16 January 2015, 13:57:33 UTC 
arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"
 
This patch partially reverts commit 421520ba98290a73b35b7644e877a48f18e06004
(only the arm64 part). There is no guarantee that the boot-loader places other
images like dtb in a different page than initrd start/end, especially when the
kernel is built with 64KB pages. When this happens, such pages must not be
freed. The free_reserved_area() already takes care of rounding up "start" and
rounding down "end" to avoid freeing partially used pages.

Cc: <stable@vger.kernel.org> # 3.17+
Reported-by: Peter Maydell <Peter.Maydell@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
1 parent cd25b85
Raw File
Tip revision: 0145058c3d30b4319d747f64caa16a9cb15f0581 authored by Catalin Marinas on 16 January 2015, 13:56:38 UTC
arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"
Tip revision: 0145058
no-block.c 
/* no-block.c: implementation of routines required for non-BLOCK configuration
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#include <linux/kernel.h>
#include <linux/fs.h>

static int no_blkdev_open(struct inode * inode, struct file * filp)
{
	return -ENODEV;
}

const struct file_operations def_blk_fops = {
	.open		= no_blkdev_open,
	.llseek		= noop_llseek,
};
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