cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ext2_fs.h (967B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 *  linux/include/linux/ext2_fs.h
      4 *
      5 * Copyright (C) 1992, 1993, 1994, 1995
      6 * Remy Card (card@masi.ibp.fr)
      7 * Laboratoire MASI - Institut Blaise Pascal
      8 * Universite Pierre et Marie Curie (Paris VI)
      9 *
     10 *  from
     11 *
     12 *  linux/include/linux/minix_fs.h
     13 *
     14 *  Copyright (C) 1991, 1992  Linus Torvalds
     15 */
     16
     17#ifndef _LINUX_EXT2_FS_H
     18#define _LINUX_EXT2_FS_H
     19
     20#include <linux/types.h>
     21#include <linux/magic.h>
     22
     23#define EXT2_NAME_LEN 255
     24
     25/*
     26 * Maximal count of links to a file
     27 */
     28#define EXT2_LINK_MAX		32000
     29
     30#define EXT2_SB_MAGIC_OFFSET	0x38
     31#define EXT2_SB_BLOCKS_OFFSET	0x04
     32#define EXT2_SB_BSIZE_OFFSET	0x18
     33
     34static inline u64 ext2_image_size(void *ext2_sb)
     35{
     36	__u8 *p = ext2_sb;
     37	if (*(__le16 *)(p + EXT2_SB_MAGIC_OFFSET) != cpu_to_le16(EXT2_SUPER_MAGIC))
     38		return 0;
     39	return (u64)le32_to_cpup((__le32 *)(p + EXT2_SB_BLOCKS_OFFSET)) <<
     40		le32_to_cpup((__le32 *)(p + EXT2_SB_BSIZE_OFFSET));
     41}
     42
     43#endif	/* _LINUX_EXT2_FS_H */