include/linux/sysv_fs.h

1 /* SPDX-License-Identifier: GPL-2.0 */
17    On Coherent FS, they are always stored in PDP-11 manner: the least
21 /* 0 is non-existent */
26 /* Xenix super-block data on disk */
41 	char		s_fmod;		/* super-block modified flag */
42 	char		s_ronly;	/* flag whether fs is mounted read-only */
43 	__fs32		s_time __packed2__; /* time of last super block update */
49 	char		s_clean;	/* set to 0x46 when filesystem is properly unmounted */
66 /* SystemV4 super-block data on disk */
82 	char	s_fmod;		/* super-block modified flag */
83 	char	s_ronly;	/* flag whether fs is mounted read-only */
84 	__fs32	s_time;		/* time of last super block update */
92 	__fs32	s_state;	/* file system state: 0x7c269d38-s_time means clean */
98 /* SystemV2 super-block data on disk */
111 	char	s_fmod;			/* super-block modified flag */
112 	char	s_ronly;		/* flag whether fs is mounted read-only */
113 	__fs32	s_time __packed2__;	/* time of last super block update */
126 /* V7 super-block data on disk */
141 	char    s_fmod;         /* super-block modified flag */
142 	char    s_ronly;        /* flag whether fs is mounted read-only */
143 	__fs32  s_time __packed2__; /* time of last super block update */
159 /* The disk addresses are three-byte (despite direct block addresses being
160  * aligned word-wise in inode). If the most significant byte is non-zero,
164 /* Coherent super-block data on disk */
179 	char		s_fmod;		/* super-block modified flag */
180 	char		s_ronly;	/* flag whether fs is mounted read-only */
181 	__fs32		s_time __packed2__; /* time of last super block update */