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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
1234567891011121314151617181920212223242526272829303132333435363738394041424344/* SPDX-License-Identifier: GPL-2.0 *//* * linux/include/linux/ext2_fs.h * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) * Laboratoire MASI - Institut Blaise Pascal * Universite Pierre et Marie Curie (Paris VI) * * from * * linux/include/linux/minix_fs.h * * Copyright (C) 1991, 1992 Linus Torvalds */
#ifndef _LINUX_EXT2_FS_H#define _LINUX_EXT2_FS_H
#include <linux/types.h>#include <linux/magic.h>
#define EXT2_NAME_LEN 255
/* * Maximal count of links to a file */#define EXT2_LINK_MAX 32000
#define EXT2_SB_MAGIC_OFFSET 0x38#define EXT2_SB_BLOCKS_OFFSET 0x04#define EXT2_SB_BSIZE_OFFSET 0x18
static inline u64 ext2_image_size(void *ext2_sb){ __u8 *p = ext2_sb; if (*(__le16 *)(p + EXT2_SB_MAGIC_OFFSET) != cpu_to_le16(EXT2_SUPER_MAGIC)) return 0; return (u64)le32_to_cpup((__le32 *)(p + EXT2_SB_BLOCKS_OFFSET)) << le32_to_cpup((__le32 *)(p + EXT2_SB_BSIZE_OFFSET));}
#endif /* _LINUX_EXT2_FS_H */