47 static void detected_xenix(struct sysv_sb_info *sbi, unsigned *max_links)  in detected_xenix()  argument
49 	struct buffer_head *bh1 = sbi->s_bh1;  in detected_xenix()
50 	struct buffer_head *bh2 = sbi->s_bh2;  in detected_xenix()
63 	sbi->s_fic_size = XENIX_NICINOD;  in detected_xenix()
64 	sbi->s_flc_size = XENIX_NICFREE;  in detected_xenix()
65 	sbi->s_sbd1 = (char *)sbd1;  in detected_xenix()
66 	sbi->s_sbd2 = (char *)sbd2;  in detected_xenix()
67 	sbi->s_sb_fic_count = &sbd1->s_ninode;  in detected_xenix()
68 	sbi->s_sb_fic_inodes = &sbd1->s_inode[0];  in detected_xenix()
69 	sbi->s_sb_total_free_inodes = &sbd2->s_tinode;  in detected_xenix()
70 	sbi->s_bcache_count = &sbd1->s_nfree;  in detected_xenix()
71 	sbi->s_bcache = &sbd1->s_free[0];  in detected_xenix()
72 	sbi->s_free_blocks = &sbd2->s_tfree;  in detected_xenix()
73 	sbi->s_sb_time = &sbd2->s_time;  in detected_xenix()
74 	sbi->s_firstdatazone = fs16_to_cpu(sbi, sbd1->s_isize);  in detected_xenix()
75 	sbi->s_nzones = fs32_to_cpu(sbi, sbd1->s_fsize);  in detected_xenix()
78 static void detected_sysv4(struct sysv_sb_info *sbi, unsigned *max_links)  in detected_sysv4()  argument
81 	struct buffer_head *bh1 = sbi->s_bh1;  in detected_sysv4()
82 	struct buffer_head *bh2 = sbi->s_bh2;  in detected_sysv4()
90 	sbi->s_fic_size = SYSV_NICINOD;  in detected_sysv4()
91 	sbi->s_flc_size = SYSV_NICFREE;  in detected_sysv4()
92 	sbi->s_sbd1 = (char *)sbd;  in detected_sysv4()
93 	sbi->s_sbd2 = (char *)sbd;  in detected_sysv4()
94 	sbi->s_sb_fic_count = &sbd->s_ninode;  in detected_sysv4()
95 	sbi->s_sb_fic_inodes = &sbd->s_inode[0];  in detected_sysv4()
96 	sbi->s_sb_total_free_inodes = &sbd->s_tinode;  in detected_sysv4()
97 	sbi->s_bcache_count = &sbd->s_nfree;  in detected_sysv4()
98 	sbi->s_bcache = &sbd->s_free[0];  in detected_sysv4()
99 	sbi->s_free_blocks = &sbd->s_tfree;  in detected_sysv4()
100 	sbi->s_sb_time = &sbd->s_time;  in detected_sysv4()
101 	sbi->s_sb_state = &sbd->s_state;  in detected_sysv4()
102 	sbi->s_firstdatazone = fs16_to_cpu(sbi, sbd->s_isize);  in detected_sysv4()
103 	sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);  in detected_sysv4()
106 static void detected_sysv2(struct sysv_sb_info *sbi, unsigned *max_links)  in detected_sysv2()  argument
109 	struct buffer_head *bh1 = sbi->s_bh1;  in detected_sysv2()
110 	struct buffer_head *bh2 = sbi->s_bh2;  in detected_sysv2()
118 	sbi->s_fic_size = SYSV_NICINOD;  in detected_sysv2()
119 	sbi->s_flc_size = SYSV_NICFREE;  in detected_sysv2()
120 	sbi->s_sbd1 = (char *)sbd;  in detected_sysv2()
121 	sbi->s_sbd2 = (char *)sbd;  in detected_sysv2()
122 	sbi->s_sb_fic_count = &sbd->s_ninode;  in detected_sysv2()
123 	sbi->s_sb_fic_inodes = &sbd->s_inode[0];  in detected_sysv2()
124 	sbi->s_sb_total_free_inodes = &sbd->s_tinode;  in detected_sysv2()
125 	sbi->s_bcache_count = &sbd->s_nfree;  in detected_sysv2()
126 	sbi->s_bcache = &sbd->s_free[0];  in detected_sysv2()
127 	sbi->s_free_blocks = &sbd->s_tfree;  in detected_sysv2()
128 	sbi->s_sb_time = &sbd->s_time;  in detected_sysv2()
129 	sbi->s_sb_state = &sbd->s_state;  in detected_sysv2()
130 	sbi->s_firstdatazone = fs16_to_cpu(sbi, sbd->s_isize);  in detected_sysv2()
131 	sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);  in detected_sysv2()
134 static void detected_coherent(struct sysv_sb_info *sbi, unsigned *max_links)  in detected_coherent()  argument
137 	struct buffer_head *bh1 = sbi->s_bh1;  in detected_coherent()
142 	sbi->s_fic_size = COH_NICINOD;  in detected_coherent()
143 	sbi->s_flc_size = COH_NICFREE;  in detected_coherent()
144 	sbi->s_sbd1 = (char *)sbd;  in detected_coherent()
145 	sbi->s_sbd2 = (char *)sbd;  in detected_coherent()
146 	sbi->s_sb_fic_count = &sbd->s_ninode;  in detected_coherent()
147 	sbi->s_sb_fic_inodes = &sbd->s_inode[0];  in detected_coherent()
148 	sbi->s_sb_total_free_inodes = &sbd->s_tinode;  in detected_coherent()
149 	sbi->s_bcache_count = &sbd->s_nfree;  in detected_coherent()
150 	sbi->s_bcache = &sbd->s_free[0];  in detected_coherent()
151 	sbi->s_free_blocks = &sbd->s_tfree;  in detected_coherent()
152 	sbi->s_sb_time = &sbd->s_time;  in detected_coherent()
153 	sbi->s_firstdatazone = fs16_to_cpu(sbi, sbd->s_isize);  in detected_coherent()
154 	sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);  in detected_coherent()
157 static void detected_v7(struct sysv_sb_info *sbi, unsigned *max_links)  in detected_v7()  argument
159 	struct buffer_head *bh2 = sbi->s_bh2;  in detected_v7()
163 	sbi->s_fic_size = V7_NICINOD;  in detected_v7()
164 	sbi->s_flc_size = V7_NICFREE;  in detected_v7()
165 	sbi->s_sbd1 = (char *)sbd;  in detected_v7()
166 	sbi->s_sbd2 = (char *)sbd;  in detected_v7()
167 	sbi->s_sb_fic_count = &sbd->s_ninode;  in detected_v7()
168 	sbi->s_sb_fic_inodes = &sbd->s_inode[0];  in detected_v7()
169 	sbi->s_sb_total_free_inodes = &sbd->s_tinode;  in detected_v7()
170 	sbi->s_bcache_count = &sbd->s_nfree;  in detected_v7()
171 	sbi->s_bcache = &sbd->s_free[0];  in detected_v7()
172 	sbi->s_free_blocks = &sbd->s_tfree;  in detected_v7()
173 	sbi->s_sb_time = &sbd->s_time;  in detected_v7()
174 	sbi->s_firstdatazone = fs16_to_cpu(sbi, sbd->s_isize);  in detected_v7()
175 	sbi->s_nzones = fs32_to_cpu(sbi, sbd->s_fsize);  in detected_v7()
178 static int detect_xenix(struct sysv_sb_info *sbi, struct buffer_head *bh)  in detect_xenix()  argument
182 		sbi->s_bytesex = BYTESEX_LE;  in detect_xenix()
184 		sbi->s_bytesex = BYTESEX_BE;  in detect_xenix()
187 	switch (fs32_to_cpu(sbi, sbd->s_type)) {  in detect_xenix()
189 		sbi->s_type = FSTYPE_XENIX;  in detect_xenix()
192 		sbi->s_type = FSTYPE_XENIX;  in detect_xenix()
199 static int detect_sysv(struct sysv_sb_info *sbi, struct buffer_head *bh)  in detect_sysv()  argument
201 	struct super_block *sb = sbi->s_sb;  in detect_sysv()
208 		sbi->s_bytesex = BYTESEX_LE;  in detect_sysv()
210 		sbi->s_bytesex = BYTESEX_BE;  in detect_sysv()
214 	type = fs32_to_cpu(sbi, sbd->s_type);  in detect_sysv()
216  	if (fs16_to_cpu(sbi, sbd->s_nfree) == 0xffff) {  in detect_sysv()
217  		sbi->s_type = FSTYPE_AFS;  in detect_sysv()
218 		sbi->s_forced_ro = 1;  in detect_sysv()
227 	if (fs32_to_cpu(sbi, sbd->s_time) < JAN_1_1980) {  in detect_sysv()
231 		sbi->s_type = FSTYPE_SYSV2;  in detect_sysv()
245 		sbi->s_forced_ro = 1;  in detect_sysv()
248 	sbi->s_type = FSTYPE_SYSV4;  in detect_sysv()
252 static int detect_coherent(struct sysv_sb_info *sbi, struct buffer_head *bh)  in detect_coherent()  argument
260 	sbi->s_bytesex = BYTESEX_PDP;  in detect_coherent()
261 	sbi->s_type = FSTYPE_COH;  in detect_coherent()
265 static int detect_sysv_odd(struct sysv_sb_info *sbi, struct buffer_head *bh)  in detect_sysv_odd()  argument
267 	int size = detect_sysv(sbi, bh);  in detect_sysv_odd()
304 	struct sysv_sb_info *sbi = SYSV_SB(sb);  in complete_read_super()  local
306 	char *found = flavour_names[sbi->s_type];  in complete_read_super()
311 	sbi->s_firstinodezone = 2;  in complete_read_super()
313 	flavour_setup[sbi->s_type](sbi, &sb->s_max_links);  in complete_read_super()
315 	sbi->s_truncate = 1;  in complete_read_super()
316 	sbi->s_ndatazones = sbi->s_nzones - sbi->s_firstdatazone;  in complete_read_super()
317 	sbi->s_inodes_per_block = bsize >> 6;  in complete_read_super()
318 	sbi->s_inodes_per_block_1 = (bsize >> 6)-1;  in complete_read_super()
319 	sbi->s_inodes_per_block_bits = n_bits-6;  in complete_read_super()
320 	sbi->s_ind_per_block = bsize_4;  in complete_read_super()
321 	sbi->s_ind_per_block_2 = bsize_4*bsize_4;  in complete_read_super()
322 	sbi->s_toobig_block = 10 + bsize_4 * (1 + bsize_4 * (1 + bsize_4));  in complete_read_super()
323 	sbi->s_ind_per_block_bits = n_bits-2;  in complete_read_super()
325 	sbi->s_ninodes = (sbi->s_firstdatazone - sbi->s_firstinodezone)  in complete_read_super()
326 		<< sbi->s_inodes_per_block_bits;  in complete_read_super()
332 	sb->s_magic = SYSV_MAGIC_BASE + sbi->s_type;  in complete_read_super()
335 	if (sbi->s_forced_ro)  in complete_read_super()
337 	if (sbi->s_truncate)  in complete_read_super()
355 	struct sysv_sb_info *sbi;  in sysv_fill_super()  local
365 	sbi = kzalloc(sizeof(struct sysv_sb_info), GFP_KERNEL);  in sysv_fill_super()
366 	if (!sbi)  in sysv_fill_super()
369 	sbi->s_sb = sb;  in sysv_fill_super()
370 	sbi->s_block_base = 0;  in sysv_fill_super()
371 	mutex_init(&sbi->s_lock);  in sysv_fill_super()
372 	sb->s_fs_info = sbi;  in sysv_fill_super()
409 		sbi->s_bh1 = bh1;  in sysv_fill_super()
410 		sbi->s_bh2 = bh;  in sysv_fill_super()
420 	kfree(sbi);  in sysv_fill_super()
442 	struct sysv_sb_info *sbi;  in v7_sanity_check()  local
444 	sbi = sb->s_fs_info;  in v7_sanity_check()
448 	if (fs16_to_cpu(sbi, v7sb->s_nfree) > V7_NICFREE ||  in v7_sanity_check()
449 	    fs16_to_cpu(sbi, v7sb->s_ninode) > V7_NICINOD ||  in v7_sanity_check()
450 	    fs32_to_cpu(sbi, v7sb->s_fsize) > V7_MAXSIZE)  in v7_sanity_check()
460 	if ((fs16_to_cpu(sbi, v7i->i_mode) & ~0777) != S_IFDIR ||  in v7_sanity_check()
461 	    (fs32_to_cpu(sbi, v7i->i_size) == 0) ||  in v7_sanity_check()
462 	    (fs32_to_cpu(sbi, v7i->i_size) & 017) ||  in v7_sanity_check()
463 	    (fs32_to_cpu(sbi, v7i->i_size) > V7_NFILES *  in v7_sanity_check()
475 	struct sysv_sb_info *sbi;  in v7_fill_super()  local
483 	sbi = kzalloc(sizeof(struct sysv_sb_info), GFP_KERNEL);  in v7_fill_super()
484 	if (!sbi)  in v7_fill_super()
487 	sbi->s_sb = sb;  in v7_fill_super()
488 	sbi->s_block_base = 0;  in v7_fill_super()
489 	sbi->s_type = FSTYPE_V7;  in v7_fill_super()
490 	mutex_init(&sbi->s_lock);  in v7_fill_super()
491 	sb->s_fs_info = sbi;  in v7_fill_super()
503 	sbi->s_bytesex = BYTESEX_PDP;  in v7_fill_super()
508 	sbi->s_bytesex = BYTESEX_LE;  in v7_fill_super()
515 	sbi->s_bh1 = bh;  in v7_fill_super()
516 	sbi->s_bh2 = bh;  in v7_fill_super()
524 	kfree(sbi);  in v7_fill_super()